Re: [RE-wrenches] Anyone heard of Tesup?
Look up Tesup on Amazon. 65% or purchasers consider their power claims a scam. There is no way a $1000 machine can generate up to 9kw of power. And a 9kw genny weight would buckle the metal pole stand it supposedly is compatible with. On Thu, Jul 4, 2024 at 2:33 PM Kienan Maxfield via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > Hey all, > > I know well the old adage - "If it sounds to good to be true, then it > probably is." I also know that I have seen numerous windmill scams. > > That said, I am doing some consulting for someone who wants to buy and > install this Tesup windmill... Supposedly a 9 kW wind turbine for $999 > > https://tesup.com/us/products/tesup-horizontal-wind-turbines-for-homes > > My customer claims all the normal things... This company has been around > for a very long time (so they claim), they have millions of happy customers > (so they claim), they are from Europe, not Asia (as though that would make > them trustworthy)... > > I know enough to be highly suspicious, and I won't be touching this unit > myself either way, but I'm just curious if anyone knows anything directly > about this specific one. I'll be advising this person not to get his hopes > up if he does decide to try it out, and that I am suspicious, but if anyone > has anything more specific, I'd love to hear about it so I can give better > advice. > > Thanks, > Kienan > > > > > > > > *Green-Go Solar Wholesale Distribution LLC Maxfield Solar LLC > (installation and consulting company) maxfieldso...@hotmail.com > <https://maxfieldso...@hotmail.com> (801) 631-5584(Cell) > www.distribution.solar <https://www.distribution.solar>* > ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 33st Anniversary 1991-2024!!* dba Vermont Solar Engineering 802.559.1225 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
Re: [RE-wrenches] Need SMA SB1800U
I have a used one. Not up to present grid certifications obviously. Contact me off list. or it might be a 2500. it's buried in my inverter museum. On Tue, Jul 2, 2024 at 2:03 PM William Miller via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > Friends: > > > > I have a low voltage PV array that is begging for a Sunny Boy 1800U. If > anyone has one they are willing to part with, please contact me directly. > > > > Thanks, > > > > William > > > > Miller Solar > > 17395 Oak Road, Atascadero, CA 93422 > > 805-438-5600 > > www.millersolar.com > > CA Lic. 773985 > > > > > ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 33st Anniversary 1991-2024!!* dba Vermont Solar Engineering 802.559.1225 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
Re: [RE-wrenches] Fortress LFP batteries and Outback charge controller
It would be sweet if the Fortress Envy had auxiliary shunts like the Radian for measuring multiple power sources, but alas it does not. I have systems with as many as -4- online platforms, due to multiple inverter brand upgrades and AC-coupling.through the years. And when I need to see critical power curves / use patterns and other in-the-weeds stuff, I also add an egauge. Sounds crazy, but it's the only way sometimes to completely monitor and cross-check larger systems On Sun, Jun 30, 2024 at 11:11 AM Dave Angelini Offgrid Solar via RE-wrenches wrote: > You and the client lose the ability to monitor it all in one place do you > not? > > > > *Dave Angelini Offgrid Solar > "we go where powerlines don't" ><http://members.sti.net/offgridsolar/>https://offgridsolar1.com/ > <https://offgridsolar1.com/> <http://members.sti.net/offgridsolar/> > e-mail offgridso...@sti.net > text 209 813 0060* > > > On 2024-06-29 4:48 pm, Kirk Herander via RE-wrenches wrote: > > > All, > > I'm wondering if there are any precautions if charging a Fortress Evault > LFP bank using 1 or more OB charge controllers, in tandem with an Envy > inverter PV input. > > I know it will have to be programmed differently, and it will be open > loop, no CC control from the BMU,. > > This is a net metered system using a Fortress 12 kw inverter. The total PV > input of the inverter is 21 kw. Max sell back is 12 kw, while charging > batteries at 6 kw. > > My issue is the customer has his heart set on maxing out the roof capacity > at 25 kw. And I don't really need to add a second inverter for > critical loads, Only to increase integrated DC-coupled PV capacity. > > So I feasibly put part of the array on external charge controller(s) , > open-looped, and the remainder on a single 12kw Envy inverter. > > A second inverter also increases the AC capacity, and as a result, > involves a more comprehensive review for net metering approval in Vermont > (new trigger for additional review is greater than 15 kw AC).. > > > -- > > *Kirk Herander / **kirkh@vermont.solar * > > *Owner|Principal, VT Solar, LLC* > > *Celebrating our 33st Anniversary 1991-2024!!* > > dba Vermont Solar Engineering > > 802.559.1225 > > ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 33st Anniversary 1991-2024!!* dba Vermont Solar Engineering 802.559.1225 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
Re: [RE-wrenches] Fortress LFP batteries and Outback charge controller
Yes, remotely at least. You need a mate 3S to monitor any outback product if you want to see it on opticsRE. But the Evault state of charge should give an accurate calculation, regardless of where the charging Current is coming from. *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 33st Anniversary 1991-2024!!* dba Vermont Solar Engineering 802.559.1225 On Sun, Jun 30, 2024 at 11:11 AM Dave Angelini Offgrid Solar via RE-wrenches wrote: > You and the client lose the ability to monitor it all in one place do you > not? > > > > *Dave Angelini Offgrid Solar > "we go where powerlines don't" ><http://members.sti.net/offgridsolar/>https://offgridsolar1.com/ > <https://offgridsolar1.com/> <http://members.sti.net/offgridsolar/> > e-mail offgridso...@sti.net > text 209 813 0060* > > > On 2024-06-29 4:48 pm, Kirk Herander via RE-wrenches wrote: > > > All, > > I'm wondering if there are any precautions if charging a Fortress Evault > LFP bank using 1 or more OB charge controllers, in tandem with an Envy > inverter PV input. > > I know it will have to be programmed differently, and it will be open > loop, no CC control from the BMU,. > > This is a net metered system using a Fortress 12 kw inverter. The total PV > input of the inverter is 21 kw. Max sell back is 12 kw, while charging > batteries at 6 kw. > > My issue is the customer has his heart set on maxing out the roof capacity > at 25 kw. And I don't really need to add a second inverter for > critical loads, Only to increase integrated DC-coupled PV capacity. > > So I feasibly put part of the array on external charge controller(s) , > open-looped, and the remainder on a single 12kw Envy inverter. > > A second inverter also increases the AC capacity, and as a result, > involves a more comprehensive review for net metering approval in Vermont > (new trigger for additional review is greater than 15 kw AC).. > > > -- > > *Kirk Herander / **kirkh@vermont.solar * > > *Owner|Principal, VT Solar, LLC* > > *Celebrating our 33st Anniversary 1991-2024!!* > > dba Vermont Solar Engineering > > 802.559.1225 > > ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
[RE-wrenches] Fortress LFP batteries and Outback charge controller
All, I'm wondering if there are any precautions if charging a Fortress Evault LFP bank using 1 or more OB charge controllers, in tandem with an Envy inverter PV input. I know it will have to be programmed differently, and it will be open loop, no CC control from the BMU,. This is a net metered system using a Fortress 12 kw inverter. The total PV input of the inverter is 21 kw. Max sell back is 12 kw, while charging batteries at 6 kw. My issue is the customer has his heart set on maxing out the roof capacity at 25 kw. And I don't really need to add a second inverter for critical loads, Only to increase integrated DC-coupled PV capacity. So I feasibly put part of the array on external charge controller(s) , open-looped, and the remainder on a single 12kw Envy inverter. A second inverter also increases the AC capacity, and as a result, involves a more comprehensive review for net metering approval in Vermont (new trigger for additional review is greater than 15 kw AC).. -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 33st Anniversary 1991-2024!!* dba Vermont Solar Engineering 802.559.1225 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
Re: [RE-wrenches] AC V DC RE: electrolysis
Hi, There are several different ways to accomplish this via RF signalling. One discussed before here is to use the IO-WRP kit from supplyhouse.com. I did exactly what you want (disconnecting an inverter feed remotely when the generator started) using this kit and relay / contactor. And check out offerings at https://www.rfsolutions.co.uk/. I just set up a wireless genny start / stop from the dry contact of a Fortress Envy, with one of their xmitter (Bogeyboard) and receiver (Quanta) pairs. @ about 1/2 the price of the IO-WRP setup. The Rfsolutions stuff is quite versatile, just about anything can be told to turn on or off, based on one or more 0v inputs. A wide variety of function inventory to choose from. A found the products I needed in stock at Digikey and Mouser, respectively. On Thu, Jun 20, 2024 at 2:35 AM William Miller via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > Friends: > > > > I have an installation of 12 Enphase IQ inverters that is downstream from > a generator transfer switch. During power outages the generator will run > poorly when the Enphase is on and the sun is shining. The problems go away > when the Enphase is shut off. No surprises about this. > > > > The Enphase is installed on a barn about 150 conduit feet from the > generator transfer switch. My plan is to create a low voltage signal when > the generator is running and send it to a coil on a contactor in the barn. > Said contactor will disconnect the 12 micro-inverters. > > > > There is existing one 26 AWG pairs of a Cat 6 cable running between the > buildings. I have found a two pole, 30A contactor that draws 7 watts on > the coil. The voltage drop calcs on 150 feet of 26 AWG wire shows a 24 > volt signal will not cause excessive voltage drop (~4%). > > > > Here is where I am uncertain: Should I run 24 volts AC or DC? My concern > about DC is if there are any damp connections, electrolysis will occur that > might erode the 26 AWG conductors. We’ve all seen powder where copper used > to be. Is AC less susceptible to electrolysis? My research has turned up > no pertinent conclusions. > > > > Thanks in advance. > > > > William Miller > > > > Miller Solar > > 17395 Oak Road, Atascadero, CA 93422 > > 805-438-5600 > > www.millersolar.com > > CA Lic. 773985 > > > > > ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 33st Anniversary 1991-2024!!* dba Vermont Solar Engineering 802.559.1225 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
Re: [RE-wrenches] Dual battery bank switch for 48 VDC system
Eaton Double Throw 100 Amp Generator Transfer Switch DT223URK-NPS rated @ 250 vdc, 100 amp, non-fusible On Sat, Jun 15, 2024 at 1:19 PM greg egan via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > Wrenches, I have a customer who has a 2 strings of AGM's @ 48 VDC that > we want to split so we can charge them at decent charge rate. Adding > more PV and/or larger generator and inverter is cost prohibitive. I've > seen Blue Seas (#3002) 4 position 500 amp switches that are rated for > 32VDC. Max he could possibly pull at once with his system is less than > 100 amps. > > I would assume the Blue Seas 3002 would work and I'd probably use it in > my garage, but I'm not comfortable recommending it to a customer. Any > suggestions on a 60 VDC rated unit that could handle say 150 amps and > 4/0 cables? > > Maybe I'm being too cautious since the max load would be < 6KW and the > 3002 is rated for 16kW load (32 VDC /500A)? Thoughts? > > Thank you, > > Greg Egan > Remote Power Inc. > Fairbanks, AK > ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 33st Anniversary 1991-2024!!* dba Vermont Solar Engineering 802.559.1225 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
Re: [RE-wrenches] replacement needed for 12 vdc, 20w El-Sid circulator
Thanks, I just found them online.Seems like the best alternative. On Sun, May 26, 2024 at 1:06 PM Dan Fink via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > Kirk; I found this place for a very remote client last year with an > ancient, failed El-Sid on a solar thermal system. I didn't do the > replacement as the site is too far away, but the client said it worked fine > upon installation and I haven't heard a word since. > https://www.ussolarpumps.com/el-sid/ > > Dan Fink > Owner, Buckville Energy Consulting LLC > IREC Certified Instructor for PV and Small Wind Installation > NABCEP Certified PV System Inspector > NABCEP PV Associate > d anbo...@gmail.com > 970-672-4342 > > > > > On Sun, May 26, 2024 at 10:38 AM Kirk Herander via RE-wrenches < > re-wrenches@lists.re-wrenches.org> wrote: > >> Hello, >> >> Any recommendations for replacement? A customer's El Sid on an old Sdhw >> system just failed after 20 years of service. It is powered directly from a >> PV module. Thanks in advance. >> >> -- >> >> *Kirk Herander / **kirkh@vermont.solar * >> >> *Owner|Principal, VT Solar, LLC* >> >> *Celebrating our 33st Anniversary 1991-2024!!* >> >> dba Vermont Solar Engineering >> >> 802.559.1225 >> >> ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 33st Anniversary 1991-2024!!* dba Vermont Solar Engineering 802.559.1225 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
[RE-wrenches] replacement needed for 12 vdc, 20w El-Sid circulator
Hello, Any recommendations for replacement? A customer's El Sid on an old Sdhw system just failed after 20 years of service. It is powered directly from a PV module. Thanks in advance. -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 33st Anniversary 1991-2024!!* dba Vermont Solar Engineering 802.559.1225 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
Re: [RE-wrenches] Fortress Avalon
Does the Avalon system have the ability to monitor an AC 400 amp service? I know the Envy does not. I ran into this in one of my installs, the envy does not support paralleling CTs to monitor paralleled main feeds. And besides, you can’t, at least several months ago even monitor a single feed 400 amp service using their CTs. I would have much more confidence in Fortress generally speaking if they would finally come out with some of these upgrades they’ve been promising for a while. *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 33st Anniversary 1991-2024!!* dba Vermont Solar Engineering 802.559.1225 On Wed, May 15, 2024 at 2:17 PM Michael Welch via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > Hi gang. Dave Tedeyan is having troubles with his ISP and asked me to > forward this message to the list: > > Hi All, > > I installed an Avalon system in March. The SEP (smart energy panel) is a > nice idea. As Jay mentioned, getting the main and load breakers wired is > difficult. I was using standard 4/0 AL XHHW-2. It was doable, but I had to > remove the display screen in order to get things wired, and I was afraid > that I might break off one of the load relays if the wire slipped, but it > was doable. I'll attach a photo of the install in progress, you can see it > is not easy to get those wires into the main breaker. Fortress is aware of > this issue and presumably will be doing something about it. I like the > integrated relays though and how you can easily incorporate load shedding. > > In general, the product does not yet have its full capacity. They just got > the AC coupling software available right before I installed this, which is > good, since this is an AC coupled system. They still do not have the > software for generator integration, so I will have to come back this fall > to move the generator feed once that is available. I am not sure whether > you can have multiple inverters yet either. Plus, the installer app is only > in beta testing. So, right now, I have to have to share a login with the > homeowner. The homeowner app seems to be similar to the Guardian app in > that there is very little info there, and no historical info. All this will > be coming with the release of their installer app. > > The commissioning process almost went very smoothly, until at the last > screen it gave me an error sending the info to Fortress. I think in the end > it would have been fine, but I ended up on the phone for a while with tech > support to know for sure that it was OK. I am not sure whether that was a > random issue, but it seems that they are still working out some bugs. Not > surprising, considering that it is a brand new system. I gather that there > are not too many of these in the field yet, since one of their main sales > reps, Walt, randomly reached out to me to ask for feedback. I was happy to > have the opportunity to talk about it. > > Also, note, when I was testing the system and I shut off the main breaker, > it took about a second or two for power to switch over. It was not > instantaneous. So, yes, clocks reset, although it at least lets the > homeowner know that there was a power outage. With some other systems, the > homeowner may not even know that the power is out so they don't know to > adjust their power usage. (I know, the benefits of having a paired down > backup loads panel, but sometimes it just makes more sense to back up > everything). > > But, in general, I think that when this system has its full functionality, > I think it will be a really solid system at a good price. > > Cheers, > Dave > > -- > Dave Tedeyan, P.E. > Owner | Sungineer Solar > p: he | him | his > a: 1653 Slaterville Rd. | Ithaca, NY 14850 > <https://www.google.com/maps/search/1653+Slaterville+Rd.+%7C+Ithaca,+NY+14850?entry=gmail=g> > w: www.sungineersolar.com > c: (607) 270-0370 > > > Mac Lewis via RE-wrenches wrote at 05:28 PM 5/14/2024: > > > Hello Wrenches, > > I am looking closely at offering the Fortress Avalon system. I would > like to hear from anyone that has installed, commissioned and seen them > work in the field. Pros and cons, all of your thoughts are appreciated. > > Thanks! > > ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wren
Re: [RE-wrenches] PV/Charge Controller Troubleshoot Help
ther >> >>> side note is that their generator threw an AGS fault code on the MATE3 >> >>> controller and found that the generator has problems so I ended up >> >>> turning from "auto" to "off" >> >>> -- >> >>> Jim with Gowdy Electric >> >>> Cambria, Ca 93428 >> >>> business 805 927 2630 >> >>> cell 805 975 5279 >> >>> ___ >> >>> List sponsored by Redwood Alliance >> >>> >> >>> Pay optional member dues here: http://re-wrenches.org >> >>> >> >>> List Address: RE-wrenches@lists.re-wrenches.org >> >>> >> >>> Change listserver email address & settings: >> >>> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> >>> >> >>> There are two list archives for searching. When one doesn't work, try >> the >> >>> other: >> >>> https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ >> >>> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org >> >>> >> >>> List rules & etiquette: >> >>> http://www.re-wrenches.org/etiquette.htm >> >>> >> >>> Check out or update participant bios: >> >>> http://www.members.re-wrenches.org >> >>> >> >> >> >> ___ >> >> List sponsored by Redwood Alliance >> >> >> >> Pay optional member dues here: http://re-wrenches.org >> >> >> >> List Address: RE-wrenches@lists.re-wrenches.org >> >> >> >> Change listserver email address & settings: >> >> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> >> >> >> There are two list archives for searching. When one doesn't work, try >> the >> >> other: >> >> https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ >> >> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org >> >> >> >> List rules & etiquette: >> >> http://www.re-wrenches.org/etiquette.htm >> >> >> >> Check out or update participant bios: >> >> http://www.members.re-wrenches.org >> >> >> > ___ >> > List sponsored by Redwood Alliance >> > >> > Pay optional member dues here: http://re-wrenches.org >> > >> > List Address: RE-wrenches@lists.re-wrenches.org >> > >> > Change listserver email address & settings: >> > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> > >> > There are two list archives for searching. When one doesn't work, try >> the >> > other: >> > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ >> > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org >> > >> > List rules & etiquette: >> > http://www.re-wrenches.org/etiquette.htm >> > >> > Check out or update participant bios: >> > http://www.members.re-wrenches.org >> > ___ >> > List sponsored by Redwood Alliance >> > >> > Pay optional member dues here: http://re-wrenches.org >> > >> > List Address: RE-wrenches@lists.re-wrenches.org >> > >> > Change listserver email address & settings: >> > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> > >> > There are two list archives for searching. When one doesn't work, try >> the other: >> > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ >> > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org >> > >> > List rules & etiquette: >> > http://www.re-wrenches.org/etiquette.htm >> > >> > Check out or update participant bios: >> > http://www.members.re-wrenches.org >> > >> ___ >> List sponsored by Redwood Alliance >> >> Pay optional member dues here: http://re-wrenches.org >> >> List Address: RE-wrenches@lists.re-wrenches.org >> >> Change listserver email address & settings: >> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> >> There are two list archives for searching. When one doesn't work, try the >> other: >> https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ >> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org >> >> List rules & etiquette: >> http://www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> http://www.members.re-wrenches.org >> >> ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 33st Anniversary 1991-2024!!* dba Vermont Solar Engineering 802.559.1225 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
Re: [RE-wrenches] Mate3s error vs. event log
Hi, Are you saying that this "charged parms met" message is actually coming from the Flexnet? I do have a flexnet in this system. The event log states the originating port to be "M", as from the Mate3s itself. On Tue, Apr 2, 2024 at 1:49 AM Nick A Lucchese via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > Hello Kirk, > > Does the client rely on the fully charged indicator anyway? Perhaps defeat > some of the settings that will satisfy the targets of the Flexnet? Maybe > set the “charged voltage” to something a few volts higher than your > absorption set point and/or take the timer all the way up to 240 minutes? > It’s definitely frustrating that some clients are scared to press any > buttons on the Mate, even that Events button can intimidate apparently! > > Nick > > > On Apr 1, 2024, at 12:08 PM, Kirk Herander via RE-wrenches < > re-wrenches@lists.re-wrenches.org> wrote: > > Hello All, > > I have a customer with a OB Radian GS8048A, grid tied, which logs a > "charged parms met" message regularly. When it does, the event log LED on > the 3s starts blinking. My customer thinks it's an error, and calls me. I > Wish I could somehow defeat this event, and any non-error, from blinking > the event LED for everyone's sanity. > > Charged parms met is not an error, but it's crying fire in a theater to > have this annoyance occurring. It happens several times a week. Is there > any way to keep non-errors from flashing the LED? > > OB tech support is starting to have long lead times, so I am asking here > first. Thanks. > > -- > *Kirk Herander / **kirkh@vermont.solar * > *Owner|Principal, VT Solar, LLC* > *Celebrating our 33st Anniversary 1991-2024!!* > dba Vermont Solar Engineering > 802.559.1225 > > > ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 33st Anniversary 1991-2024!!* dba Vermont Solar Engineering 802.559.1225 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
[RE-wrenches] Mate3s error vs. event log
Hello All, I have a customer with a OB Radian GS8048A, grid tied, which logs a "charged parms met" message regularly. When it does, the event log LED on the 3s starts blinking. My customer thinks it's an error, and calls me. I Wish I could somehow defeat this event, and any non-error, from blinking the event LED for everyone's sanity. Charged parms met is not an error, but it's crying fire in a theater to have this annoyance occurring. It happens several times a week. Is there any way to keep non-errors from flashing the LED? OB tech support is starting to have long lead times, so I am asking here first. Thanks. -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 33st Anniversary 1991-2024!!* dba Vermont Solar Engineering 802.559.1225 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
Re: [RE-wrenches] Plaques
___ >> List sponsored by Redwood Alliance >> >> Pay optional member dues here: http://re-wrenches.org >> >> List Address: RE-wrenches@lists.re-wrenches.org >> >> Change listserver email address & settings: >> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> >> There are two list archives for searching. When one doesn't work, try the >> other: >> https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ >> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org >> >> List rules & etiquette: >> http://www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> http://www.members.re-wrenches.org >> >> ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 33st Anniversary 1991-2024!!* dba Vermont Solar Engineering 802.559.1225 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
Re: [RE-wrenches] Sol-Ark 15K AC Output
I agree. That website is way overpriced on their interlocks. I’ve looked at the one you made from your photos and it looks good. I guess I’ll have to ask you to make me one someday if I am ever in need *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 33st Anniversary 1991-2024!!* dba Vermont Solar Engineering 802.559.1225 On Wed, Mar 27, 2024 at 5:33 PM William Miller wrote: > Kirk: > > > > Very interesting. Thank you for that link. > > > > Let’s consider the options: > > > > ·The interlocks from this supplier can be a bit pricey ($350-450 > for what we are talking about). > > > > ·If you want to make your own interlock the materials are less > than $10. The hardest part is cutting clean slots in aluminum plate. I > use a CNC router. Before I acquired the CNC I made a jig for a standard > router. Or drill, jig saw and file. The notches are easy to mock up in > either CAD format (cardboard or computer) and cut with a band or jig saw. > Your first one will take an hour or two to fabricate. > > > > ·Compare this to a Ronk 7416 at about $1500 (I find the Ronks to > be a bit wonky to use. Let’s call them Ronky.) Add to that the space > required and the plumbing and wiring for 400 amps (I think Jason can > specify a 200 A switch). Plus if you are not combining your inverters in > an existing load center you need another load center for combining. This > can really add up. > > > > With either interlock option, the inverter combining, the interlocked > bypass and output breakers all fit into one load center. > > > > I hope the time we spent on this discussion helps someone out there. > That’s why we do it. > > > > Wm > > > > Miller Solar > > 17395 Oak Road, Atascadero, CA 93422 > > 805-438-5600 > > www.millersolar.com > > CA Lic. 773985 > > > > > > *From:* Kirk Herander [mailto:kirkh@vermont.solar] > *Sent:* Wednesday, March 27, 2024 12:38 PM > *To:* RE-wrenches; will...@millersolar.com > *Cc:* Jason Szumlanski > *Subject:* Re: [RE-wrenches] Sol-Ark 15K AC Output > > > > www.interlockkit.com - they stock and custom make interlock bypasses > including multiple breakers. > > > > Square D also makes a 400 A panel which excepts either bolt on or snap on > QO breakers. > > > > > > > > > > > *Kirk Herander / **kirkh@vermont.solar * > > *Owner|Principal, VT Solar, LLC* > > *Celebrating our 33st Anniversary 1991-2024!!* > > dba Vermont Solar Engineering > > 802.559.1225 > > > > > > On Wed, Mar 27, 2024 at 3:15 PM William Miller via RE-wrenches < > re-wrenches@lists.re-wrenches.org> wrote: > > Jason: > > > > Replies below. > > > > Miller Solar > > 17395 Oak Road, Atascadero, CA 93422 > > 805-438-5600 > > www.millersolar.com > > CA Lic. 773985 > > > > > > *From:* Jason Szumlanski [mailto:ja...@floridasolardesigngroup.com] > *Sent:* Wednesday, March 27, 2024 3:12 AM > *To:* will...@millersolar.com > *Cc:* RE-wrenches > *Subject:* Re: [RE-wrenches] Sol-Ark 15K AC Output > > > > William, > > > > Thanks for the information on grid peak shaving. That is what I thought > could be done. The description is a misnomer of sorts (like a lot of things > in Sol-Ark lingo). It's a bit hard to follow and not nearly well > enough documented, particularly with respect to parallel systems. You > are welcome. The Sol-Arc manual is not a great manual in any regards. > > > > I follow what you are saying about using the 80A input breakers. The > problem I have is that you must set the generator kW to 36,000 in the > master inverter, not 9,000W in each inverter. The concept of "underrating" > the input breakers theorizes that each inverter will share the generator > pass-through equally. I do not know that to be the case. And what happens > if the three slave inverters have a fault or are turned off? That would > allow the single master to pass through the full generator supply. > Obviously this trips the 80A input breaker and protects the conductors, but > I feel that is a design deficiency when a single inverter is fully capable > of passing through all 150A. You may be designing for an eventuality > that will never occur: If the inverters fail then they should be repaired > or replaced. While awaiting repair the bypass will keep your loads powered > at full capacity. > > > > On top of that, I don't think the 80A output breakers are sufficient > because each inverter can peak shave 50A with inverter power from the > batteries. Add that to the theo
Re: [RE-wrenches] Sol-Ark 15K AC Output
www.interlockkit.com - they stock and custom make interlock bypasses including multiple breakers. Square D also makes a 400 A panel which excepts either bolt on or snap on QO breakers. *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 33st Anniversary 1991-2024!!* dba Vermont Solar Engineering 802.559.1225 On Wed, Mar 27, 2024 at 3:15 PM William Miller via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > Jason: > > > > Replies below. > > > > Miller Solar > > 17395 Oak Road, Atascadero, CA 93422 > > 805-438-5600 > > www.millersolar.com > > CA Lic. 773985 > > > > > > *From:* Jason Szumlanski [mailto:ja...@floridasolardesigngroup.com] > *Sent:* Wednesday, March 27, 2024 3:12 AM > *To:* will...@millersolar.com > *Cc:* RE-wrenches > *Subject:* Re: [RE-wrenches] Sol-Ark 15K AC Output > > > > William, > > > > Thanks for the information on grid peak shaving. That is what I thought > could be done. The description is a misnomer of sorts (like a lot of things > in Sol-Ark lingo). It's a bit hard to follow and not nearly well > enough documented, particularly with respect to parallel systems. You > are welcome. The Sol-Arc manual is not a great manual in any regards. > > > > I follow what you are saying about using the 80A input breakers. The > problem I have is that you must set the generator kW to 36,000 in the > master inverter, not 9,000W in each inverter. The concept of "underrating" > the input breakers theorizes that each inverter will share the generator > pass-through equally. I do not know that to be the case. And what happens > if the three slave inverters have a fault or are turned off? That would > allow the single master to pass through the full generator supply. > Obviously this trips the 80A input breaker and protects the conductors, but > I feel that is a design deficiency when a single inverter is fully capable > of passing through all 150A. You may be designing for an eventuality > that will never occur: If the inverters fail then they should be repaired > or replaced. While awaiting repair the bypass will keep your loads powered > at full capacity. > > > > On top of that, I don't think the 80A output breakers are sufficient > because each inverter can peak shave 50A with inverter power from the > batteries. Add that to the theorized balanced 37.5A "grid" input, and you > are at 87.5A of possible throughput. I am not sure why you are designing > to deliver more than the inverters will produce. The generator support > function is intended to assist powering loads when the generator is > undersized. I define that as the generator ampacity being less than that > of the inverter system. The 36kVA generator is greater in ampacity than 4 > Sol-Arc 15s. You can turn the generator support function down or off in > the Sol-Arc. I would recommend it be set to off for this project. (If > there are to be occasional loads that are greater than the inverters can > deliver, like a welder or a car charger, with the plan I suggested you have > a generator-fed panel that can feed those occasional large loads with the > generator running.) > > > > But assuming the 80A input/output concept works, other than a panelboard > with bolt on breakers, what low-cost load center allows you to fasten four > 80A backfed breakers? If this is available, I could use a recommendation. > The load centers I am familiar with only have provisions for one fastened > backfed breaker. I use to specify bolt-on panels for this but I came to > believe this is overkill. QO breakers are held in place by the panel cover > that overlaps the breakers. Other breakers are configured so the contact > points for the breaker bus are recessed. You need to convince your AHJ > that this satisfies the requirement. Part of the discussion should include > the point that off-grid systems are specialized and people that do not > understand them should not be working on them (or judging them-- is what I > tell inexperienced plan-checkers). > > > > With respect to the bypass, I would usually use a DPDT switch to > accomplish this, Even for 400A bypasses, there seems to be a relatively > cost effective option in the Ronk 7416 (which to date I have not used). I > get the concept for smaller (<=100A) generators that you could use a > generator interlock on an off-the-shelf load center. But they typically > only allow a single backfed 2-pole breaker, whereas something like a Square > D QO panel with a backfed 150A breaker requires 4 spaces and is > incompatible with the interlock device. Since bypass is an emergency > condition, I sometimes limit my b
Re: [RE-wrenches] Fortress
Yes, the site I mentioned is only for the fortress envy inverter. I’ve had the same weather as you, being in northern Vermont, that is where that system crashed that I mentioned in the previous email, definitely did not reach a full state of charge in January. The national weather service reported it was the cloudiest January since 1951. *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 33st Anniversary 1991-2024!!* dba Vermont Solar Engineering 802.559.1225 On Thu, Feb 15, 2024 at 1:11 PM Dave Tedeyan via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > Kirk, > > That site looks specifically for the Envy inverters. Do you know if the > Guardian site is working? My credentials will not get me in at this time. > www.app.fortresspower.io > > My sites have no comms between the batteries and the inverter, since it is > an Outback system. > > And yes, there is certainly an issue with SOC drift over time without > getting a full charge. I was told by Fortress tech support that the eFlex > batteries needed to get over 55V to calibrate the SOC. Yet, in their > settings, the generator is only supposed to bring them to 54.4V. The solar > will bring it higher. But this was a problem here in upstate NY, where we > did not have a sunny enough day in the entire month of January. > > Cheers, > Dave > > > On Thu, Feb 15, 2024 at 12:30 PM Dave Angelini Offgrid Solar via > RE-wrenches wrote: > >> So this is all open loop with outback correct? I can't even get into >> Simplyphi. website today. Maybe the windows update... >> >> The battery below was suppose to be networkable but it looks like not >> much progress. >> >>- Model: AmpliPHI 3.8kWh >>- Inverter compatibility: Sol-Ark, SMA (coming soon), Schneider >>Electric (coming soon) >> >> A question, it looks like Outback is not closed loop with any battery >> company. I hope I am wrong! >> >> >> >> *Dave Angelini Offgrid Solar >> "we go where powerlines don't" >><http://members.sti.net/offgridsolar/>https://offgridsolar1.com/ >> <https://offgridsolar1.com/> <http://members.sti.net/offgridsolar/> >> e-mail offgridso...@sti.net >> text 209 813 0060* >> >> >> On 2024-02-15 8:57 am, Darryl Thayer via RE-wrenches wrote: >> >> Is it similar to my problem with my Simplify batteries? Over time, the >> BMS did not allow all cells to charge the same. To correct this, I had to >> charge each battery separately, and after this, they stayed equivalent for >> more years. >> >> On Thu, Feb 15, 2024 at 7:50 AM Jay via RE-wrenches < >> re-wrenches@lists.re-wrenches.org> wrote: >> >> >> Hi william >> >> Could you share the equipment used and what issues you had? >> >> Thx >> Jay >> >> On Feb 14, 2024, at 3:13 PM, William Miller via RE-wrenches < >> re-wrenches@lists.re-wrenches.org> wrote: >> >> Peter: >> >> >> >> I have only purchased one set of Fortress batteries. There have been >> issues, I am sure many of them self-induced. Fortress has been overall >> very responsive. There have been a few days where I could not get through >> to technical support but with persistence I always manage. Fortress has >> offered truck–roll compensation at a reasonable rate as well. >> >> >> >> William Miller >> >> >> >> Miller Solar >> >> 17395 Oak Road, Atascadero, CA 93422 >> >> 805-438-5600 >> >> www.millersolar.com >> >> CA Lic. 773985 >> >> >> >> >> >> *From:* RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] *On >> Behalf Of *Peter Giroux via RE-wrenches >> *Sent:* Wednesday, February 14, 2024 6:47 AM >> *To:* 'RE-wrenches' >> *Cc:* pgir...@mindspring.com >> *Subject:* [RE-wrenches] Fortress >> >> >> >> Good morning my fellow wrenchers. While I see the comments on SunPower >> and the challenges, are any of you having similar issues with Fortress? >> Their bms boards from the early classics have not held up and even after >> replacement there are still issues ( parallel batteries and stand alone not >> showing accurate #'s, ). While support has been, well supportive, the >> issues persist. Any thoughts or fixes you have come up with?? I just had a >> customer unplug the coms cable from their sol-ark and bring their readings >> to volts VS %% and it is starting to work a bit better. Any and all help or >> ideas appreciated. >> >&g
Re: [RE-wrenches] State of Charge Meter for Sol-Ark
I have done the cheap tablet route in the same application. Just install a browser extension to auto refresh the So-ark app screen at an interval of your choosing. All browsers have add-ons which do it. On Mon, Feb 5, 2024 at 9:33 AM Jason Szumlanski via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > I don't want to add a device that provides a separate (different) state of > charge than what is reported by the BMS itself. That is just going to lead > to confusion and complaints from the homeowner. I was hoping the Sol-Ark > could feed SOC and voltage information to a simple external display. I'm > leaning toward the cheap tablet idea, but that isn't ideal because the > Sol-Ark app doesn't automatically refresh, so it can't be used to display > the current SOC without physical interaction. I suppose I could use a web > browser with an auto-refresh feature. But this isn't really what I had in > mind. > > Jason Szumlanski > Principal Solar Designer | Florida Solar Design Group > NABCEP Certified Solar Professional (PVIP) > Florida State Certified Solar Contractor CVC56956 > Florida Certified Electrical Contractor EC13013208 > > > On Mon, Feb 5, 2024 at 9:02 AM Chris Schaefer via RE-wrenches < > re-wrenches@lists.re-wrenches.org> wrote: > >> Why not revert to the tried, trued and tested Trimetric 2030 from Bogart >> engineering? I miss the old 2020 units that we installed on every off grid >> system back in the day. >> >> Christopher >> >> On Sun, Feb 4, 2024 at 11:38 AM Glenn Burt via RE-wrenches < >> re-wrenches@lists.re-wrenches.org> wrote: >> >>> Cheap tablet mounted to the wall? >>> >>> -Glenn >>> Sent from my 'smart'phone, so please excuse typos and spelling errors. >>> >>> -- Original message-- >>> *From: *Jason Szumlanski via RE-wrenches >>> *Date: *Sun, Feb 4, 2024 10:30 AM >>> *To: *RE-wrenches; >>> *Cc: *Jason Szumlanski; >>> *Subject:*[RE-wrenches] State of Charge Meter for Sol-Ark >>> >>> Are there any off the shelf solutions to view battery SOC via a wired >>> meter mounted remotely on a property? I have a client with a simple voltage >>> based meter for lead acid batteries that they are accustomed to using as a >>> quick and approximate gauge of SOC. They want something similar for their >>> new Sol-Ark with EG4 LL batteries. >>> >>> They will have smartphone app visibility, but they want something they >>> can see inside the house without picking up a phone or going out to the >>> inverter. Ideally the SOC will come from the inverter or the battery >>> itself, not an external source (to avoid discrepancies). >>> >>> Jason Szumlanski >>> Florida Solar Design Group >>> ___ >>> >> ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 33st Anniversary 1991-2024!!* dba Vermont Solar Engineering 802.559.1225 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
[RE-wrenches] wireless remote generator start
Hello, I am looking for a wireless receiver/xmitter RF remote to start a two-wire Kolher from the start relay (dry contact) of a Fortress inverter. Having done this before with added external relays, I'd like to keep it simple this time with all switching done using off-the-shelf RF units. Any ideas? Thanks. -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 33st Anniversary 1991-2024!!* dba Vermont Solar Engineering 802.559.1225 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
Re: [RE-wrenches] OpticsRE
use the full URL, meaning www.opticsre.com, not just opticsre.com. It works fine for me this way., just discovered this. Somehow related to their recent upgrade. On Mon, Dec 18, 2023 at 6:17 PM Foxfire Energy via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > Anyone know what’s going on with OpticsRE? Their sites been down since > last Friday. TIA > > Sent from my iPhone > ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 33st Anniversary 1991-2024!!* dba Vermont Solar Engineering 802.559.1225 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
Re: [RE-wrenches] Hydraulic KO tool
Best thing is to buy a hydraulic set from Amazon or another online source. I'm talking China-made, not the highest quality but cheap is what you're looking for, especially if it's only being used once a year. I have a similar set I've had for 6-7 years now and it's been fine. On Mon, Dec 11, 2023 at 1:48 PM Jay via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > I’m wondering if anyone has recommendations for an inexpensive hydraulic > KO tool. > > I have a project where I need to punch some 4” holes in gutter. > I can’t get a jig saw or anything in there and a 4” hole saw bit is crazy > expensive. > > There are many inexpensive hydraulic tools out there that should work for > a holes. Just thought I’d check to see if anyone has any suggestions. > > Thx > > Jay > ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 33st Anniversary 1991-2024!!* dba Vermont Solar Engineering 802.559.1225 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
Re: [RE-wrenches] Fortress remote monitoring
Yep, I found this out when I installed my first Fortress Evault / Envy inverter combo last month. What was also a bit different at first is the fact there are -2- different apps: the Guardian gateway app and the Envy inverter app. I bought the guardian thinking it was the only way to see the system remotely, but this is not true IF you've installed the Envy inverter also. The limitation of no "fleet" monitoring is puzzling. But now I'm glad there's a unique app for the inverter. The inverter app is much more detailed and allows most parameters to be tweaked remotely. The Guardian app id for basic system monitoring only. So the single-user per app has worked out OK. My customer uses the at-a-glance Guardian app, and I use the Envy app for more detailed monitoring and programming. On Wed, Dec 6, 2023 at 12:11 PM Sam Haraldson via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > Here is an official communication from Fortress that we received recently > when inquiring about monitoring Fortress batteries as an Installer. Some > of you may find the info relevant. > > -- Forwarded message - > From: > Date: Mon, Dec 4, 2023 at 12:37 PM > Subject: Re:[## 5635 ##] Remote Monitoring Access > To: -@---.com > > > Hi -, > > As of right now, the Guardian app is designed to be used by the end user > only and does not have "fleet management" capabilities as you have > described. This is a highly demanded feature so we are working on getting > this added by Q2 2024. > > If you would like to view the info from their Guardian, you can use their > login info and log in using their credentials on your phone. > > Best, > - -- > Applications Engineer II > Fortress Power > ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 33st Anniversary 1991-2024!!* dba Vermont Solar Engineering 802.559.1225 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
Re: [RE-wrenches] Fortress remote monitoring
Yeah, I tried that site the other day, my browser gave me warning messages, so I left it alone. So that site will be online access to the Guardian gateway data? I wonder if thats true for the Envy app also. PS I found out the Guardian gateway will not recognise a newer "mesh" wifi signal. Fortress is working on a fix, but the physical LAN connection does work. On Thu, Nov 30, 2023 at 11:28 AM Dave Tedeyan wrote: > Kirk, > > I know that with the Guardian Battery monitor the app is working, but they > are doing a major overhaul on the website. My login info does not work on > the website right now, and I am told that it will not be available until > the new year. The website is: > https://app.fortresspower.io/ > > Cheers, > Dave > > On Thu, Nov 30, 2023 at 11:25 AM Kirk Herander via RE-wrenches < > re-wrenches@lists.re-wrenches.org> wrote: > >> Hello, >> >> I installed an Evault 18.5 with Envy 8kw inverter the other day. I'm >> wondering if there is any way to actually monitor / download system data >> from a desktop computer? Can't find anything in the Fortress docs (some of >> which appear to be WIP for content) about this. The Fortress mobile apps >> are nice, but don't allow for any data download, unless I'm totally missing >> something. Thanks. >> >> -- >> >> *Kirk Herander / **kirkh@vermont.solar * >> >> *Owner|Principal, VT Solar, LLC* >> >> *Celebrating our 33st Anniversary 1991-2024!!* >> >> dba Vermont Solar Engineering >> >> 802.559.1225 >> ___ >> List sponsored by Redwood Alliance >> >> Pay optional member dues here: http://re-wrenches.org >> >> List Address: RE-wrenches@lists.re-wrenches.org >> >> Change listserver email address & settings: >> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> >> There are two list archives for searching. When one doesn't work, try the >> other: >> https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ >> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org >> >> List rules & etiquette: >> http://www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> http://www.members.re-wrenches.org >> >> > > -- > [image: Logo] <https://www.sungineersolar.com/> > Dave Tedeyan, P.E. > Owner | Sungineer Solar > p: he | him | his > a: 1653 Slaterville Rd. | Ithaca, NY 14850 > w: www.sungineersolar.com <http://www.sungineersolar.com/> > c: (607) 270-0370 > -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 33st Anniversary 1991-2024!!* dba Vermont Solar Engineering 802.559.1225 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
[RE-wrenches] Fortress remote monitoring
Hello, I installed an Evault 18.5 with Envy 8kw inverter the other day. I'm wondering if there is any way to actually monitor / download system data from a desktop computer? Can't find anything in the Fortress docs (some of which appear to be WIP for content) about this. The Fortress mobile apps are nice, but don't allow for any data download, unless I'm totally missing something. Thanks. -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 33st Anniversary 1991-2024!!* dba Vermont Solar Engineering 802.559.1225 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
[RE-wrenches] assistance in Montgomery Co. MD area
Hello, I'm looking for residential permitting and install help in the Montgomery Co., specifically Silver Spring, MD area. If you are anyone you may know might be recommended, please contact me off-list. Thanks. -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 32st Anniversary 1991-2023!!* dba Vermont Solar Engineering 802.863.1202 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
Re: [RE-wrenches] in need of a Bergey XL.1 controller, 24vdc
I have a customer who replaced the XL controller with a Midnite Solar controller, using the dump load function. SO IMO you don't need to find the original necessarily. Not up on Midnite controllers, so can't give you specifics now, but can find out the details. On Wed, Nov 8, 2023 at 4:47 PM Chris Schaefer via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > G'day All, > > Had one of my clients burn up a controller on an offgrid system. It is an > XL.1 24 Vdc unit, early 2000 circa. The resistor dump unit and turbine > itself appear to be fine. I've attached a few pictures of the damaged > controller for your viewing pleasure. Apparently the newer controllers > require a stator upgrade which the client doesn't want to do. If anyone has > a spare unit gathering dust I'd be happy to purchase it. > > Thanks bunches, > Christopher- > > Chris Schaefer’s > > > *Tel 585-229-2083 or Cell 585-748-1870 * > *5115 S Hill Road ~ Canandaigua New York 14424**www.solarandwindfx.com > <http://www.solarandwindfx.com> ~ E-mail: ch...@solarandwindfx.com > * > > > Thomas Jefferson, the author of our great Constitution, once said, > "democracy" will cease to exist when you take away from those who are > willing to work and give to those who would not." > ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 32st Anniversary 1991-2023!!* dba Vermont Solar Engineering 802.863.1202 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
Re: [RE-wrenches] AC Coupling
I agree totally with your drawings. On Sat, Oct 28, 2023 at 4:17 PM William Miller via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > Friends: > > > > I am starting to get the impression that there is a diversion on the > understanding of the definition of AC coupling within the industry. I > think this definition needs to be clarified. > > > > Below is a diagram of what I understand is a DC coupled system (I hope > these diagrams come through): > > > > > > A battery inverter that receives AC power into an AC input port is *not* > AC coupled. > > > > Here is an AC-coupled system: > > > > > > What makes AC-Coupled systems unique are the problems presented by sending > power *backwards* through a battery inverter. This is not how battery > inverters were originally designed to operate. These systems require > careful consideration to avoid battery overcharging. > > > > Do we have consensus on this definition? > > > > William Miller > > > > Miller Solar > > 17395 Oak Road, Atascadero, CA 93422 > > 805-438-5600 > > www.millersolar.com > > CA Lic. 773985 > > > > > ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 32st Anniversary 1991-2023!!* dba Vermont Solar Engineering 802.863.1202 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
Re: [RE-wrenches] Outback Radian Generator Charging: Support mode
Can anyone explain why changing to Support mode on the generator input boosts battery charging amps? The Radian manual explanation for Support mode gives no clue about this "fix". It only states that Support mode will allow batteries to provide extra power to loads if demand exceeds max. gen programmed input amps. I also have an offgrid Radian seeming to undercharge from a genny, and I just changed its input mode to Support to see what happens. On Fri, Oct 27, 2023 at 9:28 AM Amos Post via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > Hi all, > > Changing the Gen Input mode to Support did the trick! Thanks for the > advice! > > >Amos Post >Integrity Energy > W 802.763.7023 >C 802.291.2188 > ienergyVT.com <http://www.ienergyvt.com> > Facebook <https://www.facebook.com/integrityenergyllp?ref=hl> > > On Oct 26, 2023, at 9:16 AM, Dana Orzel via RE-wrenches < > re-wrenches@lists.re-wrenches.org> wrote: > > This may be far fetched but I have encountered good voltage & low amperage > = no amperage from solar arrays that baffled me on T/S on others systems & > ultimately: > We had voltage & low output amperage to no amperage. > Turns out there was a junction box that had been forgotten about in the > crawl space with never tightened split bolts that were crispy black from > arcing. > There was enough contact for voltage readings & not enough for any amps to > flow. > Double check all connections? > > ___ > Dana Orzel c- 2087217003 e – d...@solarwork.com > > ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > > ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 32st Anniversary 1991-2023!!* dba Vermont Solar Engineering 802.863.1202 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
Re: [RE-wrenches] Cleaning PV mods
rdDyGVPbrAubqjhW4VUC0zvVmJ3YqDCwomVHcoSXnJViwOe2rxR3Gzugvmn$> > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > <https://urldefense.com/v3/__http:/www.re-wrenches.org/etiquette.htm__;!!KPww_GFiJXw!Y_kuM7c-s1IyVKAFmwI_3s4QdWIAuH3dA6C9UrdDyGVPbrAubqjhW4VUC0zvVmJ3YqDCwomVHcoSXnJViwOe2rxR3F0anskJ$> > > Check out or update participant bios: > http://www.members.re-wrenches.org > <https://urldefense.com/v3/__http:/www.members.re-wrenches.org__;!!KPww_GFiJXw!Y_kuM7c-s1IyVKAFmwI_3s4QdWIAuH3dA6C9UrdDyGVPbrAubqjhW4VUC0zvVmJ3YqDCwomVHcoSXnJViwOe2rxR3KrUjHuR$> > > > > > -- > > [image: Logo] > <https://urldefense.com/v3/__https:/www.sungineersolar.com/__;!!KPww_GFiJXw!Y_kuM7c-s1IyVKAFmwI_3s4QdWIAuH3dA6C9UrdDyGVPbrAubqjhW4VUC0zvVmJ3YqDCwomVHcoSXnJViwOe2rxR3OgqYCzV$> > > > *Dave Tedeyan, P.E. Owner | Sungineer Solar* > > *p: *he | him | his > * a: *1653 Slaterville Rd. | Ithaca, NY 14850 > *w:* www.sungineersolar.com > <https://urldefense.com/v3/__http:/www.sungineersolar.com/__;!!KPww_GFiJXw!Y_kuM7c-s1IyVKAFmwI_3s4QdWIAuH3dA6C9UrdDyGVPbrAubqjhW4VUC0zvVmJ3YqDCwomVHcoSXnJViwOe2rxR3JXku6U_$> > *c:* (607) 270-0370 > > ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > <https://urldefense.com/v3/__http:/re-wrenches.org__;!!KPww_GFiJXw!Y_kuM7c-s1IyVKAFmwI_3s4QdWIAuH3dA6C9UrdDyGVPbrAubqjhW4VUC0zvVmJ3YqDCwomVHcoSXnJViwOe2rxR3CxvfLvy$> > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > <https://urldefense.com/v3/__http:/lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org__;!!KPww_GFiJXw!Y_kuM7c-s1IyVKAFmwI_3s4QdWIAuH3dA6C9UrdDyGVPbrAubqjhW4VUC0zvVmJ3YqDCwomVHcoSXnJViwOe2rxR3Evi2PJX$> > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > <https://urldefense.com/v3/__https:/www.mail-archive.com/re-wrenches@lists.re-wrenches.org/__;!!KPww_GFiJXw!Y_kuM7c-s1IyVKAFmwI_3s4QdWIAuH3dA6C9UrdDyGVPbrAubqjhW4VUC0zvVmJ3YqDCwomVHcoSXnJViwOe2rxR3LloGTtE$> > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > <https://urldefense.com/v3/__http:/lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org__;!!KPww_GFiJXw!Y_kuM7c-s1IyVKAFmwI_3s4QdWIAuH3dA6C9UrdDyGVPbrAubqjhW4VUC0zvVmJ3YqDCwomVHcoSXnJViwOe2rxR3Gzugvmn$> > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > <https://urldefense.com/v3/__http:/www.re-wrenches.org/etiquette.htm__;!!KPww_GFiJXw!Y_kuM7c-s1IyVKAFmwI_3s4QdWIAuH3dA6C9UrdDyGVPbrAubqjhW4VUC0zvVmJ3YqDCwomVHcoSXnJViwOe2rxR3F0anskJ$> > > Check out or update participant bios: > http://www.members.re-wrenches.org > <https://urldefense.com/v3/__http:/www.members.re-wrenches.org__;!!KPww_GFiJXw!Y_kuM7c-s1IyVKAFmwI_3s4QdWIAuH3dA6C9UrdDyGVPbrAubqjhW4VUC0zvVmJ3YqDCwomVHcoSXnJViwOe2rxR3KrUjHuR$> > > -- > > Please be advised that this email may contain confidential information. If > you are not the intended recipient, please notify us by email by replying > to the sender and delete this message. > ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 32st Anniversary 1991-2023!!* dba Vermont Solar Engineering 802.863.1202 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
[RE-wrenches] Module level electronics mounting
All, Has anyone ever mounted MLEs (optimizers, microinverters, RSDs) on the perimeter of the array or elsewhere instead of underneath the PV module? I never was a fan of climbing up on a pitched roof and removing modules to replace the electronics. And with a recent knee replacement, I won't be providing this service again. In post-surgery downtime this simple idea surfaced. My next job if it's practical is to create jumper module cables to extend down to the electronics, mounted just outside the array on their own rail. Then create a good-looking TBD cover to shield the MLEs from direct sunlight, snow, etc. -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 32st Anniversary 1991-2023!!* dba Vermont Solar Engineering 802.863.1202 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
Re: [RE-wrenches] Sunny Island/Fortress E-vault
Jerry, Who is the maker of the Blue Planet/Outback SOC box interface you mention? On Sat, Sep 16, 2023 at 9:30 AM Jerry Shafer via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > Mac, wrenches > SMA and fortress can only open loop and with a fixed temp sender its fine. > Now on the blue planet and open loop with outback, you need a SOC box that > they can make for you, it will interface with the blue planet and command > the genny. > Fun times > > On Sat, Sep 16, 2023, 6:04 AM Mac Lewis wrote: > >> Hi William, >> >> Are you doing open loop or closed loop communication? I'm not sure if >> Fortress can do a closed loop with SMA or not. >> >> We struggled to get the open loop to work well with some Blue Ion >> batteries, not from a charging sense but from a sense of getting the auto >> gen start to trigger correctly. Basically, the SOC algorithm was always >> way off. For a while we were using an external voltage trigger and we >> could get the generator to start OK before BMS shutdown. We have since >> added a Namaka box and are using the "Ext BMS" setting for battery type in >> the Sunny Island and it has been working very well. >> >> I think the difficulty arises because the Sunny Island is so >> State-of-Charge centric and you can't manipulate the SOC algorithm without >> that Ext-BMS setting (and solid communication). One weakness of the >> ext BMS setting is that it won't fall back on Voltage settings if battery >> communication goes down, but this is a weakness throughout closed loop >> communication for many manufacturers. >> >> Let us know if there is a Fortress to SMA communication solution. >> >> >> >> >> >> On Fri, Sep 15, 2023 at 11:11 PM Jerry Shafer via RE-wrenches < >> re-wrenches@lists.re-wrenches.org> wrote: >> >>> William, Wrenches >>> Yes I do and it does require some basic electronics to make it work >>> correctly, you will need to remove the ttemp sender and make a >>> resistor pack to simulate the 77 degree reading otherwise it will not >>> charge properly, for the first one I used a breadboard to set the temp for >>> what I wanted to see then build a more solid state shrink wrap resistor. >>> Doing this will prevent undercharge by the SMA and your customer will be >>> happy to see the full state of charge at the batteries. >>> OldSchool fun times >>> >>> >>> >>> On Thu, Sep 14, 2023 at 2:12 PM William Miller via RE-wrenches < >>> re-wrenches@lists.re-wrenches.org> wrote: >>> Friends: I am commissioning an E-vault battery array to an existing SMA Sunny Island System. Does anyone have any experience with this they could share? Thanks. William Miller Solar 17395 Oak Road, Atascadero, CA 93422 805-438-5600 www.millersolar.com CA Lic. 773985 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org ___ >>> List sponsored by Redwood Alliance >>> >>> Pay optional member dues here: http://re-wrenches.org >>> >>> List Address: RE-wrenches@lists.re-wrenches.org >>> >>> Change listserver email address & settings: >>> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >>> >>> There are two list archives for searching. When one doesn't work, try >>> the other: >>> https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ >>> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org >>> >>> List rules & etiquette: >>> http://www.re-wrenches.org/etiquette.htm >>> >>> Check out or update participant bios: >>> http://www.members.re-wrenches.org >>> >>> >> >> -- >> >> >> >> Mac Lewis >> >> *"Yo solo sé que no sé nada." -Sócrates* >> > ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List
Re: [RE-wrenches] sealing a carport array
I am using bifacial panels for albedo harvest, so no roof surface, just open rafters. Mod rails mounted perpendicular. The Sunmodo gasket did work well in combo with bottom mounting the modules ( i.e. no top bolts between the panels to interfere with the press-fit of the gasket). But you really need to make the gap a little wider, 1/2" or more, to get that particular gasket to tap in easy and snug. I used Ironridge camo clamps at additional expense instead of the UFOs. On Wed, Sep 13, 2023 at 1:17 PM August Goers wrote: > Hi Kirk, > > This probably isn't the answer you want, but we insist that a conventional > roof is installed (could be metal, bitumen, etc) and then install the array > on top if the client needs it to be watertight. It just seems like > everything else such as rubber gaskets or tape will be temporary or > problematic over time. Maybe others out there know of a good way to do it! > > August > Luminalt > > > > > On Wed, Sep 13, 2023 at 10:08 AM Kirk Herander via RE-wrenches < > re-wrenches@lists.re-wrenches.org> wrote: > >> All, >> >> Looking for recommendations to seal the gaps between modules in a carport >> array for weather-tightness. I've used the Sunmodo gaskets before, but >> curious about other reliable options. Thanks. >> -- >> >> *Kirk Herander / **kirkh@vermont.solar * >> >> *Owner|Principal, VT Solar, LLC* >> >> *Celebrating our 32st Anniversary 1991-2023!!* >> >> dba Vermont Solar Engineering >> >> 802.863.1202 >> ___ >> List sponsored by Redwood Alliance >> >> Pay optional member dues here: http://re-wrenches.org >> >> List Address: RE-wrenches@lists.re-wrenches.org >> >> Change listserver email address & settings: >> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> >> There are two list archives for searching. When one doesn't work, try the >> other: >> https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ >> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org >> >> List rules & etiquette: >> http://www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> http://www.members.re-wrenches.org >> >> -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 32st Anniversary 1991-2023!!* dba Vermont Solar Engineering 802.863.1202 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
[RE-wrenches] sealing a carport array
All, Looking for recommendations to seal the gaps between modules in a carport array for weather-tightness. I've used the Sunmodo gaskets before, but curious about other reliable options. Thanks. -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 32st Anniversary 1991-2023!!* dba Vermont Solar Engineering 802.863.1202 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
Re: [RE-wrenches] Solar edge question
it must be an LG RESU battery, right? On Wed, Aug 2, 2023 at 10:00 AM Jay wrote: > > Hi Kirk > > Thanks. > > Their system is from around 2017. Battery/inverter have worked fine. > > Is there a way to go from offgrid like it is now to grid tie battery > backup? > > And what parts are needed? > > Thx > > Jay > > On Aug 2, 2023, at 6:27 AM, Kirk Herander wrote: > > > Hi Jay, > > The energy hub is incompatible with older Storedge inverters. And the > newer SE battery pack is also incompatible with the Storedge. > > On Wed, Aug 2, 2023 at 8:22 AM Jay via RE-wrenches < > re-wrenches@lists.re-wrenches.org> wrote: > >> Hi all >> >> For all you SE experts. >> >> I got contacted from someone who has an offgrid system of a SE 7600A and >> battery. Works fine. >> >> They want to connect to grid power, which is right at the street because >> they want an EV. >> >> My question is, what do they need to make this a normal sell back and >> battery backup ( for a sub panel). >> >> Is it just the SE energy hub backup interface? Or? >> And does the 7600A work with that? >> >> Thanks in advance >> Jay >> ___ >> List sponsored by Redwood Alliance >> >> Pay optional member dues here: http://re-wrenches.org >> >> List Address: RE-wrenches@lists.re-wrenches.org >> >> Change listserver email address & settings: >> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> >> There are two list archives for searching. When one doesn't work, try the >> other: >> https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ >> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org >> >> List rules & etiquette: >> http://www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> http://www.members.re-wrenches.org >> >> > > -- > > *Kirk Herander / **kirkh@vermont.solar * > > *Owner|Principal, VT Solar, LLC* > > *Celebrating our 32st Anniversary 1991-2023!!* > > dba Vermont Solar Engineering > > 802.863.1202 > > -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 32st Anniversary 1991-2023!!* dba Vermont Solar Engineering 802.863.1202 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
Re: [RE-wrenches] Solar edge question
Hi Jay, The energy hub is incompatible with older Storedge inverters. And the newer SE battery pack is also incompatible with the Storedge. On Wed, Aug 2, 2023 at 8:22 AM Jay via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > Hi all > > For all you SE experts. > > I got contacted from someone who has an offgrid system of a SE 7600A and > battery. Works fine. > > They want to connect to grid power, which is right at the street because > they want an EV. > > My question is, what do they need to make this a normal sell back and > battery backup ( for a sub panel). > > Is it just the SE energy hub backup interface? Or? > And does the 7600A work with that? > > Thanks in advance > Jay > ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 32st Anniversary 1991-2023!!* dba Vermont Solar Engineering 802.863.1202 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
Re: [RE-wrenches] High current dc combiner vibration
Hi, yes I read Robins email, but the class T fuses are in series only with the large DC cable breakers (Heineman, Airpax, etc.) in the Outback GSLC. I might be missing something, perhaps again. On Sat, Jul 1, 2023 at 3:09 PM Robin wrote: > Ryan thinks it may be the classT fuses. We have a vibration issue when > classT fuses are connected to CBI breakers. > > Sent from my iPhone > > On Jul 1, 2023, at 11:32 AM, b...@midnitesolar.com wrote: > > > Hi Kirk. Did you receive the email that Robin sent to you ? > > You can measure things like, with your scope but you would want to look at > the current > from the inverter to battery. > > You could also use your clamp meter and look at DC and AC. > Set it to AC to view the ripple current. > > I will copy/paste what Robin and Ryan sent to you and our support team > below in case it didn't come through. > > boB > > > > > On 6/30/2023 7:55 AM, r...@midnitesolar.com wrote: > > Kirk, > > Any chance this is the Class T Fuses resonating from the PWM on the DC > current? Feel free to give me a call would love to discuss this further > > > > 207-416-2006 > > > > *From:* robin > *Sent:* Friday, June 30, 2023 10:47 AM > *To:* kirkh@vermont.solar > *Cc:* b...@midnitesolar.com; ryan > ; James Parish > ; t...@midnitesolar.com; Michelle Neville > > *Subject:* Vibrations > > > > Kirk, Although this is the first I have heard of this, boB says he isn’t > surprised. I am copying the tech support group here in hopes we can all > learn something. > > > > We have been shipping these boxes for about 8 years now and not a peep. > > boB says the ripple current is 120Hz AC and with that many amps it is not > surprising. I will check with our metal suppliers and ask what the cost > ramifications are to add stiffening ribs to the cover and possibly other > surfaces. > > I did this years ago on the Trace DR chassis to give it strength, but the > idea is the same. > > I hate to suggest this, but can you epoxy some ¾” x ¾” angle iron or angle > aluminum to the inside surface of the cover? Not sure about other surfaces > as I tend to fill them up with knockouts and busbars. I suppose you could > just span some unused knockouts though. Maybe even add a couple more > mounting screws towards the center of the box. > > We would be very interested in hearing the results. > > boB says our Rosie may exhibit less noise also as it will have less > ripple. We are testing many Rosie inverters paralleled so soon will be able > to have this same configuration tested although we don’t have loads large > enough to do ten Rosie’s justice. > > I don’t want to change the enclosure to aluminum for a couple of reasons, > but we may have little choice. Aluminum would not vibrate! > > One reason is cost, the other is fasteners, We would need to use press > nuts instead of snail shells. Snail shells and sheet metal screws don’t do > well in aluminum. It is too soft. Aluminum would not vibrate from magnetic > ripple activity though. > > OK, I will ask about changing to aluminum. That would probably be less > expensive than adding stiffening ribs. > > > > Let us know how it goes. > > Then ask Ryan for a couple of free SPD’s for your trouble. > > > > Thanks, > > Robin Gudgel > > MidNite Solar > > > > > > > > > On 7/1/2023 9:19 AM, Kirk Herander via RE-wrenches wrote: > > I'm going to first obtain access to an oscilloscope to characterize and > screenshot this phenomena, both before and after any mitigation I do. > > On Fri, Jun 30, 2023 at 12:46 PM bob--- via RE-wrenches < > re-wrenches@lists.re-wrenches.org> wrote: > >> >> >> We are talking to Kirk offline about this but the main issue here is that >> the enclosure >> for the 2000A combiner is made out of steel which is ferrous. That means >> that when the >> 120 Hz ripple current induces into the chassis it can vibrate just like a >> transformer. >> >> Low frequency transformer inverters are have higher ripple than the newer >> HF transformer units >> but they have some AC ripple on the battery cables as well. >> >> This combiner is evidently been around for about 8 years and we haven't >> heard any complaints >> but maybe others have been silent on this. I am not surprised at all >> that this happens. >> >> Aluminum chassis has the problem that it is a good conductor so when the >> whole enclosure forms >> around the cables, the aluminum can act as a shorted turn in a >> transformer. It is usually just >> lossy but should vibrate much less, if at all. &g
Re: [RE-wrenches] High current dc combiner vibration
I'm going to first obtain access to an oscilloscope to characterize and screenshot this phenomena, both before and after any mitigation I do. On Fri, Jun 30, 2023 at 12:46 PM bob--- via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > > > We are talking to Kirk offline about this but the main issue here is that > the enclosure > for the 2000A combiner is made out of steel which is ferrous. That means > that when the > 120 Hz ripple current induces into the chassis it can vibrate just like a > transformer. > > Low frequency transformer inverters are have higher ripple than the newer > HF transformer units > but they have some AC ripple on the battery cables as well. > > This combiner is evidently been around for about 8 years and we haven't > heard any complaints > but maybe others have been silent on this. I am not surprised at all that > this happens. > > Aluminum chassis has the problem that it is a good conductor so when the > whole enclosure forms > around the cables, the aluminum can act as a shorted turn in a > transformer. It is usually just > lossy but should vibrate much less, if at all. > > There are other issues in switching to aluminum that Robin mentions, here: > > *"One reason is cost, the other is fasteners, We would need to use press > nuts instead of snail shells. * > *Snail shells and sheet metal screws don’t do well in aluminum. It is too > soft. Aluminum would not * > > > *vibrate from magnetic ripple activity though." *He has some ideas to > make aluminum work so we will try those. > > Now, plastic could work. Just has to be real thick.Darn physics ! > > Damping can help, like Kirk tried (more can be done here too). Keeping > the cables > together best as you can inside the chassis may help as well but moving > and routing > the cables might also reduce the buzzing some more. > > That's the latest buzz from here. > > boB > K7IQ > > On 6/30/2023 8:45 AM, david quattro via RE-wrenches wrote: > > Ferrite cores can be used for the battery cables to pass through to reduce > common mode current > > On Fri, Jun 30, 2023 at 3:59 AM Kirk Herander via RE-wrenches < > re-wrenches@lists.re-wrenches.org> wrote: > >> I have -15- sets of 4/0 cable (1 per 32 kwh stack) into the combiner. >> They are paired and within .25 " of one another in wire cable tray for 80% >> of their respective distance. >> >> The inverter to combiner sets are 2/0 for each respective inverter. They >> are paired (not twisted) in cable tray, anywhere from 10 -20' in length. >> Maybe I can send some photos, but can't at present due to computer issues. >> >> I used cable tray because the CT-rated cable is in free air, no derating >> of current required. But merely pairing the leads may be the issue. >> >> I could rearrange the inverter cables and twist the sets, but doing it >> from combiner to battery cabinets is impossible. >> >> And I'm wondering if this is really necessary if the customer is willing >> to live with the issue. What are the ramifications down the road? >> Loosening of connections I suppose would be one. >> >> >> >> On Fri, Jun 30, 2023 at 12:40 AM Jerry Shafer via RE-wrenches < >> re-wrenches@lists.re-wrenches.org> wrote: >> >>> Kirk >>> As the batteries come up to charge does the vibration subside. Are the >>> battery cables spun together "corkscrew like" l have seen this correct DC >>> noise. I have an 8 on 8 just like your 10 and l have no noise at all, mine >>> come in from each side of the battery combiner, how is your install >>> configured, how is the cable length same close or very short to very long >>> some length is better on FLA's due to resistance under load and charge. >>> More information may help with a solution. >>> Fun times solar >>> NABCEP PV Inspector >>> >>> On Thu, Jun 29, 2023, 8:19 AM Kirk Herander via RE-wrenches < >>> re-wrenches@lists.re-wrenches.org> wrote: >>> >>>> All, >>>> >>>> I am in the middle of commissioning a 480kwh BP LFP battery bank, >>>> connected to -10- OB Radian 8kw inverter/chargers. >>>> >>>> For the DC combiner I am using midnite 2000 amp combiner boxes, >>>> modified to mount class T fuses on the positive bus, for both battery >>>> inputs and inverter outputs. >>>> >>>> For starters, I set the master inverter at a max charge rate of 20 AC >>>> amps, which equates to a DC charge of about 74 A. All the other inverters >>>&
Re: [RE-wrenches] High current dc combiner vibration
Hello, what do people think about the suggestion for chokes to filter this noise out? How do I go about sizing a choke for something like that? Would it have to be on each and every positive and negative conductor? And I assume I’d wanna place those chokes as close as practical to the inverters because that’s the assumed source of the 120 Hz ripple. And maybe that approach could also harden the inverters against EMP and other outside induced noise. I am using 2 inch SEU connectors, metallic, to pass the cables into and out of the combiner, I guess that’s not helping things. I was thinking of using some heat resistant rubber tape/mastic to wrap the cables as they pass through those connectors at least for dampening. On Fri, Jun 30, 2023 at 12:46 PM bob--- via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > > > We are talking to Kirk offline about this but the main issue here is that > the enclosure > for the 2000A combiner is made out of steel which is ferrous. That means > that when the > 120 Hz ripple current induces into the chassis it can vibrate just like a > transformer. > > Low frequency transformer inverters are have higher ripple than the newer > HF transformer units > but they have some AC ripple on the battery cables as well. > > This combiner is evidently been around for about 8 years and we haven't > heard any complaints > but maybe others have been silent on this. I am not surprised at all that > this happens. > > Aluminum chassis has the problem that it is a good conductor so when the > whole enclosure forms > around the cables, the aluminum can act as a shorted turn in a > transformer. It is usually just > lossy but should vibrate much less, if at all. > > There are other issues in switching to aluminum that Robin mentions, here: > > *"One reason is cost, the other is fasteners, We would need to use press > nuts instead of snail shells. * > *Snail shells and sheet metal screws don’t do well in aluminum. It is too > soft. Aluminum would not * > > > *vibrate from magnetic ripple activity though." *He has some ideas to > make aluminum work so we will try those. > > Now, plastic could work. Just has to be real thick.Darn physics ! > > Damping can help, like Kirk tried (more can be done here too). Keeping > the cables > together best as you can inside the chassis may help as well but moving > and routing > the cables might also reduce the buzzing some more. > > That's the latest buzz from here. > > boB > K7IQ > > On 6/30/2023 8:45 AM, david quattro via RE-wrenches wrote: > > Ferrite cores can be used for the battery cables to pass through to reduce > common mode current > > On Fri, Jun 30, 2023 at 3:59 AM Kirk Herander via RE-wrenches < > re-wrenches@lists.re-wrenches.org> wrote: > >> I have -15- sets of 4/0 cable (1 per 32 kwh stack) into the combiner. >> They are paired and within .25 " of one another in wire cable tray for 80% >> of their respective distance. >> >> The inverter to combiner sets are 2/0 for each respective inverter. They >> are paired (not twisted) in cable tray, anywhere from 10 -20' in length. >> Maybe I can send some photos, but can't at present due to computer issues. >> >> I used cable tray because the CT-rated cable is in free air, no derating >> of current required. But merely pairing the leads may be the issue. >> >> I could rearrange the inverter cables and twist the sets, but doing it >> from combiner to battery cabinets is impossible. >> >> And I'm wondering if this is really necessary if the customer is willing >> to live with the issue. What are the ramifications down the road? >> Loosening of connections I suppose would be one. >> >> >> >> On Fri, Jun 30, 2023 at 12:40 AM Jerry Shafer via RE-wrenches < >> re-wrenches@lists.re-wrenches.org> wrote: >> >>> Kirk >>> As the batteries come up to charge does the vibration subside. Are the >>> battery cables spun together "corkscrew like" l have seen this correct DC >>> noise. I have an 8 on 8 just like your 10 and l have no noise at all, mine >>> come in from each side of the battery combiner, how is your install >>> configured, how is the cable length same close or very short to very long >>> some length is better on FLA's due to resistance under load and charge. >>> More information may help with a solution. >>> Fun times solar >>> NABCEP PV Inspector >>> >>> On Thu, Jun 29, 2023, 8:19 AM Kirk Herander via RE-wrenches < >>> re-wrenches@lists.re-wrenches.org> wrote: >>> >>>> All, >>>> >&g
Re: [RE-wrenches] High current dc combiner vibration
I have -15- sets of 4/0 cable (1 per 32 kwh stack) into the combiner. They are paired and within .25 " of one another in wire cable tray for 80% of their respective distance. The inverter to combiner sets are 2/0 for each respective inverter. They are paired (not twisted) in cable tray, anywhere from 10 -20' in length. Maybe I can send some photos, but can't at present due to computer issues. I used cable tray because the CT-rated cable is in free air, no derating of current required. But merely pairing the leads may be the issue. I could rearrange the inverter cables and twist the sets, but doing it from combiner to battery cabinets is impossible. And I'm wondering if this is really necessary if the customer is willing to live with the issue. What are the ramifications down the road? Loosening of connections I suppose would be one. On Fri, Jun 30, 2023 at 12:40 AM Jerry Shafer via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > Kirk > As the batteries come up to charge does the vibration subside. Are the > battery cables spun together "corkscrew like" l have seen this correct DC > noise. I have an 8 on 8 just like your 10 and l have no noise at all, mine > come in from each side of the battery combiner, how is your install > configured, how is the cable length same close or very short to very long > some length is better on FLA's due to resistance under load and charge. > More information may help with a solution. > Fun times solar > NABCEP PV Inspector > > On Thu, Jun 29, 2023, 8:19 AM Kirk Herander via RE-wrenches < > re-wrenches@lists.re-wrenches.org> wrote: > >> All, >> >> I am in the middle of commissioning a 480kwh BP LFP battery bank, >> connected to -10- OB Radian 8kw inverter/chargers. >> >> For the DC combiner I am using midnite 2000 amp combiner boxes, modified >> to mount class T fuses on the positive bus, for both battery inputs and >> inverter outputs. >> >> For starters, I set the master inverter at a max charge rate of 20 AC >> amps, which equates to a DC charge of about 74 A. All the other inverters >> are automatically set to this charge rate as well. >> >> Turning the chargers on one by one, I started to get quite an audible >> vibration from the combiner box at a combined charge of about 400 to 500 A. >> >> So I took the cover off of the combiner, which was vibrating noticabllly >> by feel. Most of the noise was from the cover not fitting tight. But the >> The box itself is also vibrating by feel. >> >> I took the combined charge up to 640A dc. This level of vibration >> definitely increases with an increased charge rate. And I am surprised >> because after all, we’re not talking AC here we’re talking DC. It almost >> reminds me of a large AC transformer in its behavior. The vibration did not >> seem to be originating at the inverters, then resonating to the combiner. >> >> I can dampen the vibration by adding a few things, but I’m surprised that >> this is happening. All connections in the combiner are tightened properly. >> Ideas? >> >> >> >> >> >> >> >> >> >> >> -- >> >> *Kirk Herander / **kirkh@vermont.solar * >> >> *Owner|Principal, VT Solar, LLC* >> >> *Celebrating our 32st Anniversary 1991-2023!!* >> >> dba Vermont Solar Engineering >> >> 802.863.1202 >> ___ >> List sponsored by Redwood Alliance >> >> Pay optional member dues here: http://re-wrenches.org >> >> List Address: RE-wrenches@lists.re-wrenches.org >> >> Change listserver email address & settings: >> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> >> There are two list archives for searching. When one doesn't work, try the >> other: >> https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ >> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org >> >> List rules & etiquette: >> http://www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> http://www.members.re-wrenches.org >> >> ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ >
Re: [RE-wrenches] High current dc combiner vibration
I have not twisted them. It is a lot of Cable as you might imagine and they aren’t paired close together individual inverter to combiner or combiner to battery cabinets, not 100% of the cable lengths anyway, maybe on average 80% On Thu, Jun 29, 2023 at 12:25 PM Starlight wrote: > You may already know but… Are your DC cables bonded together and twisted > where possible to reduce magnetic fields? Higher the current and greater > the loop area, the stronger the fields are. More parallel loops, the > greater the combined flux = loud Hums. > > Larry Crutcher > Starlight Solar Power Systems > > > > > On Jun 29, 2023, at 8:19 AM, Kirk Herander via RE-wrenches < > re-wrenches@lists.re-wrenches.org> wrote: > > All, > > I am in the middle of commissioning a 480kwh BP LFP battery bank, > connected to -10- OB Radian 8kw inverter/chargers. > > For the DC combiner I am using midnite 2000 amp combiner boxes, modified > to mount class T fuses on the positive bus, for both battery inputs and > inverter outputs. > > For starters, I set the master inverter at a max charge rate of 20 AC > amps, which equates to a DC charge of about 74 A. All the other inverters > are automatically set to this charge rate as well. > > Turning the chargers on one by one, I started to get quite an audible > vibration from the combiner box at a combined charge of about 400 to 500 A. > > So I took the cover off of the combiner, which was vibrating noticabllly > by feel. Most of the noise was from the cover not fitting tight. But the > The box itself is also vibrating by feel. > > I took the combined charge up to 640A dc. This level of vibration > definitely increases with an increased charge rate. And I am surprised > because after all, we’re not talking AC here we’re talking DC. It almost > reminds me of a large AC transformer in its behavior. The vibration did not > seem to be originating at the inverters, then resonating to the combiner. > > I can dampen the vibration by adding a few things, but I’m surprised that > this is happening. All connections in the combiner are tightened properly. > Ideas? > > > > > > > > > > > -- > *Kirk Herander / **kirkh@vermont.solar * > *Owner|Principal, VT Solar, LLC* > *Celebrating our 32st Anniversary 1991-2023!!* > dba Vermont Solar Engineering > 802.863.1202 > ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > > -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 32st Anniversary 1991-2023!!* dba Vermont Solar Engineering 802.863.1202 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
[RE-wrenches] High current dc combiner vibration
All, I am in the middle of commissioning a 480kwh BP LFP battery bank, connected to -10- OB Radian 8kw inverter/chargers. For the DC combiner I am using midnite 2000 amp combiner boxes, modified to mount class T fuses on the positive bus, for both battery inputs and inverter outputs. For starters, I set the master inverter at a max charge rate of 20 AC amps, which equates to a DC charge of about 74 A. All the other inverters are automatically set to this charge rate as well. Turning the chargers on one by one, I started to get quite an audible vibration from the combiner box at a combined charge of about 400 to 500 A. So I took the cover off of the combiner, which was vibrating noticabllly by feel. Most of the noise was from the cover not fitting tight. But the The box itself is also vibrating by feel. I took the combined charge up to 640A dc. This level of vibration definitely increases with an increased charge rate. And I am surprised because after all, we’re not talking AC here we’re talking DC. It almost reminds me of a large AC transformer in its behavior. The vibration did not seem to be originating at the inverters, then resonating to the combiner. I can dampen the vibration by adding a few things, but I’m surprised that this is happening. All connections in the combiner are tightened properly. Ideas? -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 32st Anniversary 1991-2023!!* dba Vermont Solar Engineering 802.863.1202 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
Re: [RE-wrenches] AFCI tripping on SB 4000US-12
Hi William, Modules can be meggered individually in or in series strings (with a caveat). I've done it many times and discovered internal module shorts between positive and gnd,or neg and gnd. I once took the customer's garden house up on the roof, and meggered a string, while trickling water on panels individually. When a short occurred, I knew that the respective soaked panel was internally compromised (old Sanyo 190's BTW). . The caveat with meggering a string is that you have to be sure the series string voltage plus the megger voltage (i.e. V scale you are measuring with on the meter) does not exceed the max. voltage rating of the panels. Obviously most new modules have at least a 1000vdc rating these days, who knows what Shell SQ's rating is/was. For modern mods rated @ 1000v, I use the meggers 500vdc scale. And with Solaredge, you can megger straight through their optimizers if necessary. There's an app note on their site with directions. On Mon, Jun 19, 2023 at 2:11 PM William Miller via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > Friends: > > > > We installed a bunch of Shell SQ-150-PC modules on a ground mount almost > 20 years ago. The original SB2500 inverters died so we upgraded to > SB4000US-21 inverters. We had some ground fault or AFCI issues a number of > years ago so we replaced all homeruns with PV wire which resolved the > problem. > > > > These panels have J-boxes which we interconnected with 1/2” NMLT. The > home runs are with PV wire with absolutely no splices and the inter-panel > jumpers are THWN. > > > > Recently we started getting AFCI disturbances on one inverter. We > isolated the fault to one string. We opened every pull box and panel J-box > and all of the wiring looks dry, clean and tightly connected. We inspected > every panel front and back and see no hotspots or visible corrosion. > > > > I have a megger I have never used. The homerun is kind of long so maybe > it has insulation problems. I could isolate the homerun and megger those > leads. I am researching if I can megger PV modules. It looks like this is > commonly done. That looks like my next step. > > > > Does anyone have any ideas on what I should do next? I suppose I could > start swapping each of the 10 modules in the problem string with panels in > the non-problem strings, but that seems like a lot of work. > > > > Thanks in advance. > > > > William Miller > > > > Miller Solar > > 17395 Oak Road, Atascadero, CA 93422 > > 805-438-5600 > > www.millersolar.com > > CA Lic. 773985 > > > > > ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 32st Anniversary 1991-2023!!* dba Vermont Solar Engineering 802.863.1202 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
[RE-wrenches] Fortress LFPs & ENVY 12kw inverter
Hello All, I am sizing my first Fortress system, 18.5kwh LFPs w/ their new ENVY inverter. Or would a Sol-Ark be a better fit? I understand both inverters are somewhat similar. Any opinions from the real-world of installs would be greatly appreciated. Thanks. -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 32st Anniversary 1991-2023!!* dba Vermont Solar Engineering 802.863.1202 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
[RE-wrenches] hydrogen and storage education
Hello, Anyone out there have suggestions for an online education on this subject? A primo customer of mine wants to incorporate hydro somehow into a large PV + LFP system. I've looked at Heatspring offerings but really want something of nuts and bolts design & installation style. Thanks. -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 32st Anniversary 1991-2023!!* dba Vermont Solar Engineering 802.863.1202 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
Re: [RE-wrenches] 1000Vdc Combiner Block, Fusing
Yes there is a definite need for 1000vdc Combiner. it does not exist without as you say custom work by BOS or others. This was mentioned in past threads but I ended up building my own for a 1 mwh high voltage LFP system. All ul Components and fusing, but inspection was not required. Contact me off list no give you a de facto BOM of Items used. On Wed, Mar 1, 2023 at 9:44 AM Mac Lewis via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > Thanks Daniel, yes I was hopeful with SolarBOS, but they let me know they > are unable to do this right now. I may need to do a fully custom solution > but that's always iffy with inspectors. This really should be a product at > this point so I'm a bit surprised how difficult it is to find something. > > Thanks! > > On Wed, Mar 1, 2023 at 7:32 AM Daniel Young wrote: > >> Have not used them in some time, but used to a LOT and generally happy >> with them. >> >> >> >> http://www.solarbos.com/Products >> >> >> >> Lead times were a bit long, in the 1-2 month range, but who knows what >> they are now, last time I used them was pre-pandemic. >> >> >> >> -- >> >> >> >> Danny Young >> >> NABCEP PV Installation Professional #031508-90 >> >> Engineering Team Lead >> Solar Energy Solutions >> >> Lexington | Louisville | Bloomington | Cincinnati | Evansville | >> Indianapolis >> >> 513-448-5176 (mobile) >> >> 877-312-7456 (Main Office) >> >> da...@sesre.com >> >> >> >> *From:* RE-wrenches *On >> Behalf Of *Mac Lewis via RE-wrenches >> *Sent:* Sunday, February 26, 2023 10:54 AM >> *To:* RE-wrenches >> *Cc:* Mac Lewis >> *Subject:* [RE-wrenches] 1000Vdc Combiner Block, Fusing >> >> >> >> Good Morning Wrenches, >> >> >> >> I am looking for suggestions on suppliers that work in the 1000Vdc UL >> listed equipment space. Specifically, I'm trying to build a 1000Vdc rated >> combiner (Combining 4 x 100A rated battery outputs up to 900Vdc) as well as >> add OCPD (fuse or breaker) on the output going to the storage inverter. >> I'd love to find a packaged UL listed combiner for this, but I've had no >> luck with that. Any suggestions/supplier contacts are appreciated >> >> >> >> Thanks! >> >> >> >> -- >> >> >> >> >> >> >> >> Mac Lewis >> >> "Yo solo sé que no sé nada." *-Sócrates* >> > > > -- > > > > Mac Lewis > > *"Yo solo sé que no sé nada." -Sócrates* > ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 32st Anniversary 1991-2023!!* dba Vermont Solar Engineering 802.863.1202 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
[RE-wrenches] cable trays and battery cable
All, I'm just starting a 500kwh LFP battery system that requires a max. distance of 40' from each battery cabinet to the DC combiner. I am considering using a cable tray instead of an enclosed wireway for this. The battery cable used is ALL-Flex CT multi-rated MTW / THHW, and will be greater than or equal to 1/0, per NEC 392. I haven't read up a lot yet on it but I assume cable tray allows single conductor ampacity to be sized as in free air per 310.17, with perhaps some caveats. Have any of you used cable tray in a similar fashion? Pointers? Thanks. -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 32st Anniversary 1991-2023!!* dba Vermont Solar Engineering 802.863.1202 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
Re: [RE-wrenches] Remote battery disconnects
A dc-rated shunt trip breaker @ 250A (Blue Planet / OB Radian cabinet breaker) would do the trick if they exist. The trip device could be mounted outside. On Fri, Jan 27, 2023 at 3:55 PM William Miller via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > Glenn: > > > > As I wrote, a DC disconnect is required. Here is an excerpt from the Q > with the building official: > > > > 4. Will you be requiring an external disconnect to disconnect the AC > output of the inverter system from premise wiring? > > Yes, as required per 230.85 > > 5. Will you be requiring an external disconnect to disconnect batteries > from the inverters? > > Yes > > > > If the DC disconnect was not required I would not be wasting everyone’s > time with my post. I try to be careful about that, researching on my own > before posting and trying to make my questions very clear. I also try not > to embarrass myself with dumb questions, but that does happen occasionally… > > > > William > > > > Miller Solar > > 17395 Oak Road, Atascadero, CA 93422 > > 805-438-5600 > > www.millersolar.com > > CA Lic. 773985 > > > > > > *From:* RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] *On > Behalf Of *Glenn Burt via RE-wrenches > *Sent:* Friday, January 27, 2023 11:46 AM > *To:* William Miller via RE-wrenches > *Cc:* Glenn Burt > *Subject:* Re: [RE-wrenches] Remote battery disconnects > > > > Does the AHJ really want the batteries disconnected from conductors, or > does he really just want the inverters to stop operating and producing AC > within the house? > > Obviously there is a big difference here and it may be changing as the > code evolves. > > > > -Glenn > > Sent from my 'smart'phone, so please excuse typos and spelling errors. > > > > -- Original message-- > > *From: *William Miller via RE-wrenches > > *Date: *Fri, Jan 27, 2023 2:26 PM > > *To: *RE-wrenches; > > *Cc: *William Miller; > > *Subject:*[RE-wrenches] Remote battery disconnects > > > > Friends: > > > > We have a large-ish residential off-grid system install coming up. The > AHJ has said they will require a remote battery disconnect. I suspect > there will be fire sprinkler controls and a pressure pump that would become > inoperable if this system were engaged. In this case we will apply for a > waiver. > > > > The last time this was discussed here as far as I can find was October of > 2020. At that time no one suggested any specific battery disconnect > equipment. > > > > To further clarify my needs: There will be 4 or 5 Radian 8048 inverters > (5 or 6 4/0 battery circuits, ~350A each) and two 175 amp PV recombiner > outputs. That is 6 poles of high amperage DC disconnects. > > > > The battery array will be either a UnigyII VRLA or a lithium of a brand > yet to be determined. In the case of lithium we will look for a system > that can remotely enable a BMS shutdown. In the case of a VRLA lead-acid, > we will not have that luxury. > > > > I have done some considerable research and have not found viable, high > amperage, remotely activated shutdown equipment. > > > > I am wondering what hardware others may be using to achieve remote battery > disconnecting in these types of cases.. > > > > William > > > > Miller Solar > > 17395 Oak Road, Atascadero, CA 93422 > > 805-438-5600 > > www.millersolar.com > > CA Lic. 773985 > > > > > ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 32st Anniversary 1991-2023!!* dba Vermont Solar Engineering 802.863.1202 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
[RE-wrenches] gravity storage of excess PV generation
Happy New year All, I'm sure most have heard of this technology, using excess PV-powered motors to raise large weights to the top of a tower, then slowly lowering them to release energy, the motors now rotating as generators. I've only read articles of a few of these under construction on a utility scale. I wonder if this has been tried on a smaller scale anywhere. Thoughts? Resources? Thanks. -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 32st Anniversary 1991-2023!!* *www.vermont.solar* <https://nam02.safelinks.protection.outlook.com/?url=www.vermontsolarnow.com=02%7C01%7C%7C9f0330d75a244870112408d685311841%7C84df9e7fe9f640afb435%7C1%7C0%7C636842843233477645=0NjyuKeQbEK6245SNnk8X4XnP9Q%2B%2BqtvcALkdDghvk4%3D=0> dba Vermont Solar Engineering 802.863.1202 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
Re: [RE-wrenches] solar lease questions
So the SE 3800 x 2 are AC coupled to Tesla power walls? I thought PWs had built-in ac coupling. And is it correct there is no AC sell back to the grid in HI? Then batteries are a must. Sorry if these are dumb questions. We are recovering from a heavy wet snow here. On Sat, Dec 17, 2022 at 6:35 PM jay via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > HI All, > > I”ve got a friend in hawaii, big island near Kona that is looking at a > sun run lease and she’s asking me questions. > > I’m not that familiar with the electric rates nor the games that Sun Run > is doing. > > They are pushing a 20 yr lease with the following system: > 38 x 400 watt panels > 2 x SE 3.8kw > 2 x power wall > it will offset 120% of her load > loan is $398 month/ 20 yrs which is $95,000 > > My first really big question is thats 15.2kw on 7.6kw of inverter? That > doesn’t sound right, 2 x DC/AC ratio? > Does it make sense to have the batteries? > > And if you paid for the system outright, what would that be in Hawaii? > > > Any and all help and advice is welcome, > or if there any installers near there, that would also be helpful. > > > thx > jay > ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 31st Anniversary 1991-2022!!* *www.vermont.solar* <https://nam02.safelinks.protection.outlook.com/?url=www.vermontsolarnow.com=02%7C01%7C%7C9f0330d75a244870112408d685311841%7C84df9e7fe9f640afb435%7C1%7C0%7C636842843233477645=0NjyuKeQbEK6245SNnk8X4XnP9Q%2B%2BqtvcALkdDghvk4%3D=0> dba Vermont Solar Engineering 802.863.1202 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
Re: [RE-wrenches] Magnum MS4024 grief
You may have neutral and ground connected at more than 1 location, meaning at the genset and in house panel, which means the ground is carrying current back to the generator in parallel with the neutral. I remember with some Honda portables we had to float the neutral at the genset or the inverter would trip the generator's GFI when trying to charge the batteries. On Fri, Dec 16, 2022 at 1:16 PM Dave Angelini Offgrid Solar via RE-wrenches wrote: > The easy answer is try another genset ! You have to be more specific, did it > ever work? Is it new? etc. Good Luck ! > > *Dave Angelini Offgrid Solar > "we go where powerlines don't" > http://members.sti.net/offgridsolar/ <http://members.sti.net/offgridsolar/> > e-mail offgridso...@sti.net > text 209 813 0060* > > > On 2022-12-16 10:04 am, Chris Daum via RE-wrenches wrote: > > Hi folks: > > We have a new Magnum MS4024 mounted on an E-Panel using a MidNite Classic > 150 and Whiz-Bang JR with power coming from an array of Trina > TSM365-De06X-05(II) (three strings of three) with the ME-RC50 and a HUP > SolarOne 6-85-14/24 battery. > When we attempt to use the PFC (Power Factored Charger), the Gen Set’s > GFCI outlets trip. Thus far we have verified the connections are secure, > assured that the gen set is grounded, disconnected the jumper within the > E-Panel between the ground buss and neutral, checked AC voltages, removed > the MNSPD’s from the buss(s)… Stumped now on what an appropriate next step > should be. How do we get the PFC to function properly? What are we > missing? > > Best, > > Chris Daum > Oasis Montana Inc. > 406-777-4309 or 4321 > 406-777-4309 fax > www.oasismontana.com > > > > > > > > > ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 31st Anniversary 1991-2022!!* *www.vermont.solar* <https://nam02.safelinks.protection.outlook.com/?url=www.vermontsolarnow.com=02%7C01%7C%7C9f0330d75a244870112408d685311841%7C84df9e7fe9f640afb435%7C1%7C0%7C636842843233477645=0NjyuKeQbEK6245SNnk8X4XnP9Q%2B%2BqtvcALkdDghvk4%3D=0> dba Vermont Solar Engineering 802.863.1202 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
[RE-wrenches] AC coupling multiple OB Radian inverters
When AC coupling using 2 or more OB radian inverters, it is only the master inverter(at least that's where ac-coupling status shows as "yes") which can be set to, and perform "ac-coupling", correct? The Mate3s option to enable AC-coupling does not specify individual ports(inverters) to select and enable. The other inverter(s) will pass their share of the GTI PV through to the grid regardless. I ask because I was talking to OB tech support today on another issue for a 2 Radian AC-coupled system. They told me that all Radians needed to be set to AC-coupling, but there is no option to do it in the Mate3s. When I mentioned that, he said the Mate had to be unplugged from the hub and into the slave inverter directly to do it. But I don't think that's correct. And besides, if the ac-coupling setting only enables a frequency shift, that's all we need to knock the GTI offline. -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 31st Anniversary 1991-2022!!* *www.vermont.solar* <https://nam02.safelinks.protection.outlook.com/?url=www.vermontsolarnow.com=02%7C01%7C%7C9f0330d75a244870112408d685311841%7C84df9e7fe9f640afb435%7C1%7C0%7C636842843233477645=0NjyuKeQbEK6245SNnk8X4XnP9Q%2B%2BqtvcALkdDghvk4%3D=0> dba Vermont Solar Engineering 802.863.1202 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
Re: [RE-wrenches] Sol-Ark/Fortress charging issue
in maximum charge rate (up to about 40 amps total). > > > > This small increase happened after a Fortress technician suggested that we > turn on both the generator and the grid charging toggles (the generator is > connected to the grid port on the Sol-Ark as per Sol-Ark's recommendation. > Sol-Ark has run out of suggestions at the moment, and are having us cycle > the batteries tonight and they will start another charge cycle in the > morning to see if having a lower SOC along with the firmware reload will > change anyhing (I don't think it will - it didn't the last several times. > > > > Has anybody seen this type of behavior before? I don't think it is a > settings issue, as several technicians have gone through them, I have gone > over them many times using the Fortress/Sol-Ark integration white papers. > Hoping to get higher level tech involved ASAP, since I don't feel like the > lower level techs know enough to provide useful ideas. > > > > Thanks, > > Howie > > > *Howie Michaelson **Sun Catcher* > > *NABCEP Certified Solar PV Installer™ **[image: Image removed by sender.]* > > *Solar Electric Systems Sales & Service **802-272-0004* > > > > ___ > > List sponsored by Redwood Alliance > > > > Pay optional member dues here: http://re-wrenches.org > > > > List Address: RE-wrenches@lists.re-wrenches.org > > > > Change listserver email address & settings: > > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > > > There are two list archives for searching. When one doesn't work, try the > other: > > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > > > List rules & etiquette: > > http://www.re-wrenches.org/etiquette.htm > > > > Check out or update participant bios: > > http://www.members.re-wrenches.org > > > > ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 31st Anniversary 1991-2022!!* *www.vermont.solar* <https://nam02.safelinks.protection.outlook.com/?url=www.vermontsolarnow.com=02%7C01%7C%7C9f0330d75a244870112408d685311841%7C84df9e7fe9f640afb435%7C1%7C0%7C636842843233477645=0NjyuKeQbEK6245SNnk8X4XnP9Q%2B%2BqtvcALkdDghvk4%3D=0> dba Vermont Solar Engineering 802.863.1202 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
[RE-wrenches] LG Chem RESU warranty
All, Have any of you waiting for repair / replacement of these battery packs had any success in the last year? I have -3- deemed defective units. One was sent back, over a year ago, still no word from LG on replacement status. The other -2- have been awaiting return boxes for over 6 - 9 months. My many requests for status have gone without reply from LG - I have been using the latest contact info to my knowledge. Any thoughts / experiences on this nightmare subject? FYI - none of my failed units were on their recall lists!!! -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 31st Anniversary 1991-2022!!* *www.vermont.solar* <https://nam02.safelinks.protection.outlook.com/?url=www.vermontsolarnow.com=02%7C01%7C%7C9f0330d75a244870112408d685311841%7C84df9e7fe9f640afb435%7C1%7C0%7C636842843233477645=0NjyuKeQbEK6245SNnk8X4XnP9Q%2B%2BqtvcALkdDghvk4%3D=0> dba Vermont Solar Engineering 802.863.1202 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
Re: [RE-wrenches] Wireless relays
Hi Jason, https://www.iohvaccontrols.com/category/wireless-solutions.html I used the IO-WRP model, with a range of about 1/4 mi. to remotely disconnect a GTI whenever the backup genny starts. The next model down, without antenna, has a range of about 100 ft. The IO-WRP was better suited to my app. I am going from the basement of the main house where the system / gen ATS is to a barn about 150' away where the array is mounted. These units are actually designed for hvac to be controlled remotely by T-stats or whatever. But basically if any of the 3 send channels have 24vac applied on the base unit, the corresponding receive channel on the satellite unit will output 24vac. So that signal in my case is holding a contactor closed to keep the GTI connected to grid AC unless the generator starts. What's nice about these RF units is that if the 24vac power is lost on either for any reason, connection will be lost and the action at the remote unit will be aborted. pretty failsafe by nature, at least for what I'm doing. I purchased it online from supplyhouse.com - no local distributor stocked them. On Mon, Nov 7, 2022 at 9:34 AM Jason Szumlanski via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > Recently there was a discussion about remotely controlled contactors to > shed PV during generator operation I believe. I have a little bit of a > different need for remote relays. I need to remotely disconnect air > conditioning 24 volt control circuits using the dry contacts in the Enphase > smart controller. In other words, I want to shed air conditioning loads > when the system goes off grid and selectively turn them back on using the > logic in the smart controller. So what I would need is something that > detects a disconnection of the dry contacts and then sends a wireless > signal to disconnect the 24 volt control circuit at the remote location in > the house. > > Normally I would just hardwire this, but it is not an option in this case. > Does anyone know of an elegant and cost effective way to accomplish this? > > Jason Szumlanski > Florida Solar Design Group > ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 31st Anniversary 1991-2022!!* *www.vermont.solar* <https://nam02.safelinks.protection.outlook.com/?url=www.vermontsolarnow.com=02%7C01%7C%7C9f0330d75a244870112408d685311841%7C84df9e7fe9f640afb435%7C1%7C0%7C636842843233477645=0NjyuKeQbEK6245SNnk8X4XnP9Q%2B%2BqtvcALkdDghvk4%3D=0> dba Vermont Solar Engineering 802.863.1202 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
Re: [RE-wrenches] Wireless relays
Jason, I just successfully hooked up a a remote 915mhz RF circuit to accomplish GTI disconnect in a AC coupled system when the backup generator starts. I think this is the discussion you are referring to. I’m on the road right now but will post details including the source of the send/receive units when I get back to a computer. It’s been working for over two weeks now with no problems whatsoever. On Mon, Nov 7, 2022 at 9:34 AM Jason Szumlanski via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > Recently there was a discussion about remotely controlled contactors to > shed PV during generator operation I believe. I have a little bit of a > different need for remote relays. I need to remotely disconnect air > conditioning 24 volt control circuits using the dry contacts in the Enphase > smart controller. In other words, I want to shed air conditioning loads > when the system goes off grid and selectively turn them back on using the > logic in the smart controller. So what I would need is something that > detects a disconnection of the dry contacts and then sends a wireless > signal to disconnect the 24 volt control circuit at the remote location in > the house. > > Normally I would just hardwire this, but it is not an option in this case. > Does anyone know of an elegant and cost effective way to accomplish this? > > Jason Szumlanski > Florida Solar Design Group > ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 31st Anniversary 1991-2022!!* *www.vermont.solar* <https://nam02.safelinks.protection.outlook.com/?url=www.vermontsolarnow.com=02%7C01%7C%7C9f0330d75a244870112408d685311841%7C84df9e7fe9f640afb435%7C1%7C0%7C636842843233477645=0NjyuKeQbEK6245SNnk8X4XnP9Q%2B%2BqtvcALkdDghvk4%3D=0> dba Vermont Solar Engineering 802.863.1202 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
Re: [RE-wrenches] "Qualified solar electric property"? RE: battery storage limitations
Hello Howie - Unrelated to tax code, You had a question on Jerry's response referencing battery storage limitations. NFPA 855 (referenced in the 2021 NFPA 1 Fire safety rules), does put rules / limits on residential storage kwh size and layouts, amongst other things. An 80kwh storage limit is mentioned here. check out this link: https://www.mayfield.energy/blog/fire-codes-and-nfpa-855-for-energy-storage-systems This blog gives a good summary and history of both NFPA and IBC requirements in the newest versions. Note Vermont is still working off NFPA 2015 for state-permitted commercial work, so the restrictions should not apply at this time. That is of course unless a local municipality adopted 2021 on their own, which is how roof access pathway requirements came to be in many VT towns for residences, first required in NFPA 2009 or thereabouts. On Fri, Oct 21, 2022 at 5:24 PM Howie Michaelson via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > This is actually a corporate owned residence - a nice little tax > write-off... Jerry, are you saying that from personal/professional > experience there is a limitation to the size of the battery bank that a > residence can take a credit on? I've never seen reference to anything like > that before. Could you possibly elaborate? > Thanks, > Howie > > *Howie Michaelson**Sun Catcher* > > *NABCEP Certified Solar PV Installer™* > > *Solar Electric Systems Sales & Service802-272-0004* > > > On Fri, Oct 21, 2022 at 2:46 PM Jerry Shafer via RE-wrenches < > re-wrenches@lists.re-wrenches.org> wrote: > >> On the system size of batteries We have had several issues with resi and >> 80kWhr limitations, I dont know if this is an issue for you or not just >> want to through it out there. >> Jerry >> >> On Fri, Oct 21, 2022 at 11:14 AM Howie Michaelson via RE-wrenches < >> re-wrenches@lists.re-wrenches.org> wrote: >> >>> Hi folks, >>> I have a client that I'm doing a larger inverter and battery upgrade. >>> We're are putting in 3Sol-Ark 15k inverters and 7 Fortress 18.5kwh units. >>> The client is wanting manufacturer certification that the equipment is >>> "qualified solar electric property". I don't know that I've ever run across >>> this type of request before or that I've seen manufacturers supply such >>> documentation. Is this something that anyone is familiar with? Did I miss >>> something here? >>> Thanks, >>> Howie >>> ___ >>> List sponsored by Redwood Alliance >>> >>> Pay optional member dues here: http://re-wrenches.org >>> >>> List Address: RE-wrenches@lists.re-wrenches.org >>> >>> Change listserver email address & settings: >>> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >>> >>> There are two list archives for searching. When one doesn't work, try >>> the other: >>> https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ >>> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org >>> >>> List rules & etiquette: >>> http://www.re-wrenches.org/etiquette.htm >>> >>> Check out or update participant bios: >>> http://www.members.re-wrenches.org >>> >>> ___ >> List sponsored by Redwood Alliance >> >> Pay optional member dues here: http://re-wrenches.org >> >> List Address: RE-wrenches@lists.re-wrenches.org >> >> Change listserver email address & settings: >> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> >> There are two list archives for searching. When one doesn't work, try the >> other: >> https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ >> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org >> >> List rules & etiquette: >> http://www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> http://www.members.re-wrenches.org >> >> ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenche
[RE-wrenches] AC coupling with backup generator in circuit
>From an Outback application note: "Precautions Using a Generator When AC Coupling Most residential generators, and even some commercial grade generators, are not designed to synchronize with another AC source. They may experience catastrophic failure if the other AC source is a “stiffer” source and can overpower the weaker AC coupled generator. To prevent the backfeed from the GTI into the generator, a safety relay can be utilized that disconnects the GTI inputs from the Radian AC output bus bars when the generator is started, either using the MATE3s AGS generator start function, or some other method." I'm trying to wrap my head around this concept of a stiff AC source and its implications for both the GTI and backup generator. Is it merely a matter of which source (backup genny or PV inverter) has more kw? Is there any kw ratio of one to the other where the threat of damage to one or the other source is real? And I imagine real-time loads being powered has something to do with it also. This goes back to an inquiry I posted a few days ago on remote control disconnect means of the GTI. In this case, I've got a 11kw PV inverter coupled on the AC bus with a 20kw Kohler generator and 16kw of OB Radians. The system is grid-tied. I'm beginning to wonder if a disconnect means of the GTI is actually required in all cases as Outback infers. But without solid recommendation to the contrary, I will set it up anyway. *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 31st Anniversary 1991-2022!!* *www.vermont.solar* <https://nam02.safelinks.protection.outlook.com/?url=www.vermontsolarnow.com=02%7C01%7C%7C9f0330d75a244870112408d685311841%7C84df9e7fe9f640afb435%7C1%7C0%7C636842843233477645=0NjyuKeQbEK6245SNnk8X4XnP9Q%2B%2BqtvcALkdDghvk4%3D=0> dba Vermont Solar Engineering 802.863.1202 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
Re: [RE-wrenches] Looking for remote controlled contactors
You are correct on this. The failure of any control hardware, IO's / relays / contactor logic along the way from generator sense to PV contactor should result in the coupled grid-tie PV inverter disconnected. Which means the contactor at the PV inverter should be energized "closed" (so PV AC connected normally open) under normal operation (genny off, PV on). Wired as such, It can be done with off the shelf components, and remotely by adding some controlbyweb.com controllers. On Tue, Oct 11, 2022 at 7:49 PM Jason Szumlanski via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > I'm not a fan of this strategy because it is not failsafe. Contactors > fail. When the coil fails to open the contactor, you will have the PV AC > coupled with the generator If he normally closed contactor is used in this > manner. > > I think the question needs to be the converse: How do you turn the PV on > remotely only when the generator is not running. > > Jason Szumlanski > Florida Solar Design Group > > > > > > On Tue, Oct 11, 2022, 2:45 PM Maverick Brown via RE-wrenches < > re-wrenches@lists.re-wrenches.org> wrote: > >> I’ll usually use a 60 amp contactor with 240Vac coil. >> >> The generator powers the coil and opens the Normally Closed contacts >> disconnecting the grid tie inverter. >> >> Maverick Brown >> Off-Grid Solar Commander since 2006 >> *Maverick Solar Enterprises, Inc.* >> * • Solar Commander Remote Power* >> >> * • SunFlow Systems Cathodic Protection *maver...@mavericksolar.com >> 512-460-9825 >> >> >> On Oct 11, 2022, at 11:26 AM, Kirk Herander via RE-wrenches < >> re-wrenches@lists.re-wrenches.org> wrote: >> >> Hi, >> I’m looking for suggestions on a remote control 60 amp contactor. It can >> either be true wireless or send a signal down an AC power line to open / >> close contact at the other end. >> >> I’m trying to figure out a non-wired way to turn an AC coupled inverter >> off when the generator is running, as advised by outback and others. >> >> All suggestions welcome thank you. >> -- >> >> *Kirk Herander / **kirkh@vermont.solar * >> >> *Owner|Principal, VT Solar, LLC* >> >> *Celebrating our 31st Anniversary 1991-2022!!* >> >> *www.vermont.solar* >> <https://nam02.safelinks.protection.outlook.com/?url=www.vermontsolarnow.com=02%7C01%7C%7C9f0330d75a244870112408d685311841%7C84df9e7fe9f640afb435%7C1%7C0%7C636842843233477645=0NjyuKeQbEK6245SNnk8X4XnP9Q%2B%2BqtvcALkdDghvk4%3D=0> >> >> dba Vermont Solar Engineering >> >> 802.863.1202 >> ___ >> >> ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 31st Anniversary 1991-2022!!* *www.vermont.solar* <https://nam02.safelinks.protection.outlook.com/?url=www.vermontsolarnow.com=02%7C01%7C%7C9f0330d75a244870112408d685311841%7C84df9e7fe9f640afb435%7C1%7C0%7C636842843233477645=0NjyuKeQbEK6245SNnk8X4XnP9Q%2B%2BqtvcALkdDghvk4%3D=0> dba Vermont Solar Engineering 802.863.1202 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
[RE-wrenches] Looking for remote controlled contactors
Hi, I’m looking for suggestions on a remote control 60 amp contactor. It can either be true wireless or send a signal down an AC power line to open / close contact at the other end. I’m trying to figure out a non-wired way to turn an AC coupled inverter off when the generator is running, as advised by outback and others. All suggestions welcome thank you. -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 31st Anniversary 1991-2022!!* *www.vermont.solar* <https://nam02.safelinks.protection.outlook.com/?url=www.vermontsolarnow.com=02%7C01%7C%7C9f0330d75a244870112408d685311841%7C84df9e7fe9f640afb435%7C1%7C0%7C636842843233477645=0NjyuKeQbEK6245SNnk8X4XnP9Q%2B%2BqtvcALkdDghvk4%3D=0> dba Vermont Solar Engineering 802.863.1202 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
Re: [RE-wrenches] Early Hurricane Ian Report
I wish you the best in your efforts of repair and replacement. Did you evacuate or end up toughing it out through the hurricane? On Fri, Sep 30, 2022 at 9:57 PM Jason Szumlanski via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > Widespread devastation, but only a handful of reported PV failures. > Sanibel Island was thrashed and nobody has installed more panels there than > we have. Post-storm aerial imagery shows that almost all systems survived. > A couple of flat roof pitched systems had about 20% of panels break free > with mounts and rails still intact base on what I can see. > > Mainland systems are largely intact with some having single or few panels > plucked from random areas of arrays. > > No word yet on FPL's utility scale systems in Charlotte County. Suspect no > major damage. > > There will be lots of roofs that need replacement where the PV system is > unscathed. 5 years after Hurricane Irma and results are similar, maybe even > more successful. That doesn't comfort the affected. Sad stories everywhere. > > More to come. Triage mode now. > > Jason Szumlanski > Florida Solar Design Group > ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 31st Anniversary 1991-2022!!* *www.vermont.solar* <https://nam02.safelinks.protection.outlook.com/?url=www.vermontsolarnow.com=02%7C01%7C%7C9f0330d75a244870112408d685311841%7C84df9e7fe9f640afb435%7C1%7C0%7C636842843233477645=0NjyuKeQbEK6245SNnk8X4XnP9Q%2B%2BqtvcALkdDghvk4%3D=0> dba Vermont Solar Engineering 802.863.1202 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
Re: [RE-wrenches] heating pads for batteries
Search for a thread on this forum for use of reptile aquarium pads to warm BI battery cabinets. Posted within the last several months. On Fri, Sep 30, 2022 at 5:11 PM Jay via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > I’m looking at agricultural seedling mats. > They are super tough,come in many sizes many come with thermostats. > Reasonable flexible. > > Jay > > On Sep 30, 2022, at 2:45 PM, Dana Orzel via RE-wrenches < > re-wrenches@lists.re-wrenches.org> wrote: > > Reptile heater pads? > > Dana Orzel > C: 208.721.7003 > E- d...@solarwork.com > > On Sep 30, 2022, at 1:35 PM, Chris Daum via RE-wrenches < > re-wrenches@lists.re-wrenches.org> wrote: > > > > Hello all you brilliant people: > > > > Does anyone have something new for lightly heating a battery bank in a > cold climate? Something reliable and reasonably efficient? We’ve been > selling LFP batteries for a while, but few to our northern customers who > cannot keep them from freezing. I can give advise about insulated > battery boxes (and have one myself), but surely there must be something new > out there. > > > > Here we see low temps of -20F below – sometimes -40….. > > > > I recently spoke with a fellow who offers heaters for gutters to prevent > ice creep that can ruin your shingles or roof, but there must be something > more adaptable than that. Any suggestions? > > > > Chris Daum > > Oasis Montana Inc. > > 406-777-4309 or 4321 > > 406-777-4309 fax > > www.oasismontana.com > > > > > ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 31st Anniversary 1991-2022!!* *www.vermont.solar* <https://nam02.safelinks.protection.outlook.com/?url=www.vermontsolarnow.com=02%7C01%7C%7C9f0330d75a244870112408d685311841%7C84df9e7fe9f640afb435%7C1%7C0%7C636842843233477645=0NjyuKeQbEK6245SNnk8X4XnP9Q%2B%2BqtvcALkdDghvk4%3D=0> dba Vermont Solar Engineering 802.863.1202 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
Re: [RE-wrenches] Enphase
Get out of there dude, my brother lives in Tampa I told him to do the same thing. On Mon, Sep 26, 2022 at 7:30 PM Jason Szumlanski via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > I should probably write this in 48 hours after Hurricane Ian passes by > here. But I'll give you a couple of personal opinions. > > Complicated? No. It's pretty dead simple since there is no DC aspect to > consider. But there are a lot of little things, I'll call them quirks, to > learn and understand to make commissioning easier. A strong background in > the Enphase ecosystem makes it all pretty intuitive. I'm not sure how > someone new to Enphase in general would see it. > > From an installer perspective, you're taken out of the loop on quite a > bit. You become pretty reliant on customer support for some things that > don't work out of the box sometimes. There are pros and cons to this. There > is a lot of remote diagnostics, resetting, updating, etc. And > communications can be absolutely infuriating. The WiFi radio in the data > monitor is embarrassingly weak. They didn't learn that lesson, and the > comms between the gateway and batteries is also extremely poor, which means > proximity and line of sight are of paramount importance. > > Batteries seem to fail updates and require resets initially, but once > everything is up and running it seems reliable, except, again, the wireless > communications aspect which sometimes results in frustration. But all > things considered, once it's all set up it seems reliable, but time will > tell. > > Back to Hurricanes. The 40 kWh limit is pretty pathetic for our market > where people can easily consume 100 kWH per day in September. The bulk of > that is air conditioning, which is also the #1 or #2 thing people want to > back up in the first place. A 40 kWh whole house solution, realistically, > is really a partial home backup when so many sacrifices are required. There > is also a serious limit on the ability to support the surge requirements of > central air conditioning. A soft start kit is virtually required, even with > a maxed out 40 kWh system. > > I hope to have nothing additional to report after Hurricane Ian. But if > some systems go off-grid for any significant amount of time I will > certainly learn a lot and share the results. > > Jason Szumlanski > Florida Solar Design Group > > > > > On Mon, Sep 26, 2022, 7:04 PM Drake Chamberlin via RE-wrenches < > re-wrenches@lists.re-wrenches.org> wrote: > >> Hello All, >> >> Looking into the Enphase Ensemble system, I'm not sure that is a >> direction I want to take. It seems that they are extremely complicated >> and require a 30 hour training course to commission. >> >> Once installed, are they reliable? Do they require on going tweaks and >> firmware upgrades? >> >> Will the IQ8 micro inverters taper charge with phase shift? I am >> considering the possibility of AC coupling some to a pair of Radians. >> >> What is the most reliable and economically feasible way to provide >> backup power today? >> >> Thank you, >> >> Drake >> >> Drake Chamberlin >> Media & Communication Action Project >> https://m-cap.org/ >> >> >> >> >> -- >> ___ >> >> ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 31st Anniversary 1991-2022!!* *www.vermont.solar* <https://nam02.safelinks.protection.outlook.com/?url=www.vermontsolarnow.com=02%7C01%7C%7C9f0330d75a244870112408d685311841%7C84df9e7fe9f640afb435%7C1%7C0%7C636842843233477645=0NjyuKeQbEK6245SNnk8X4XnP9Q%2B%2BqtvcALkdDghvk4%3D=0> dba Vermont Solar Engineering 802.863.1202 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & set
Re: [RE-wrenches] Rebuild/Replacement for Harris Hydro
Hey David, Good to hear from you. There is a local alternator shop in Essex Jct (VT of course) that has rewound an old 12vdc Harris for a customer of mine several times. I don't know the name, but hopefully they still exist and you can find them via a search. Can't help you on the wheel. Good luck. On Thu, Sep 15, 2022 at 7:15 PM David Palumbo via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > Wrenches, > > > > I have one of my old high head micro-hydro sites that has worked well with > a Harris Turbine for many years now needing a rebuilt alternator and a new > pelton wheel, or, possibly a new PM turbine. > > I tried contacting Dennis Ledbetter who gave me a number of years of good > service after Don Harris retired. Dennis is now also retired (as am I, > except for work in my off-grid neighborhood). > > Dennis’s email bounced over to Jerry Ostermeier at APM Hydro, Grants Pass, > OR > > I have a couple of questions for the group. > >1. If I was to go with purchasing a new APM turbine it looks like a >Model 1400PM would be a possibility for the 185’ net head at 25 GPM site. >The APM Hydro web site mentions a pelton runner called DELRIN. Does anybody >have any experience with this? >2. Anyone with experience with APM’s products and servicers I would >appreciate your comments with an email to me at palumbo1...@gmail.com > > > > Thanks, > > > > David Palumbo > > Formerly operating as “Independent Power” > > Hyde Park, VT > > (802) 888-4917 > ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 31st Anniversary 1991-2022!!* *www.vermont.solar* <https://nam02.safelinks.protection.outlook.com/?url=www.vermontsolarnow.com=02%7C01%7C%7C9f0330d75a244870112408d685311841%7C84df9e7fe9f640afb435%7C1%7C0%7C636842843233477645=0NjyuKeQbEK6245SNnk8X4XnP9Q%2B%2BqtvcALkdDghvk4%3D=0> dba Vermont Solar Engineering 802.863.1202 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
Re: [RE-wrenches] Large current battery combiners, UL Listing
SolarBOS can possibly make one custom for you, it will be listed, and it will not be cheap. I was going to order a 2000A w/ multiple OCPDs on both inputs and outputs from them, but then Midnite came out with a 2000A combiner, and I don't need it listed for my application. On Sat, Sep 10, 2022 at 6:15 PM William Miller via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > Mac: > > > > Getting listing on something as specialized as you are talking about may > be difficult. I would turn to the telecom industry for solutions. Here is > one link > <https://bertholdelectric.com/dc-telecom-products/battery-termination-bars/> > I found. Their product line is pretty sexy and it is listed. > > > > If you are rolling your own, you can find ampacities for standard copper > bar thicknesses someplace like here > <https://www.copper.org/applications/electrical/busbar/busbar_ampacities.html>. > You might fabricate something that looks like one of these > <https://millersolar.com/MillerSolar/Portfolio/Inverters/battery_iinverters/JP_Radian/Images/Battery_busses_open.jpg> > but bigger. Threading is desirable so you can avoid wrangling nuts on the > back sides, but tapping copper at a reasonable bolt size (likely 3/8-16) > can be tricky. I am looking for any excuse to buy one of these drill > presses > <https://www.grizzly.com/products/teknatool-18-nova-voyager-dvr-variable-speed-drill-press/t30589> > which can automatically chip-clear. Basically at this point in my life my > only reason for working is to support my tool addiction. > > > > Good luck. > > > > William Miller > > > > Miller Solar > > 17395 Oak Road, Atascadero, CA 93422 > > 805-438-5600 > > www.millersolar.com > > CA Lic. 773985 > > > > > > *From:* RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] *On > Behalf Of *Mac Lewis via RE-wrenches > *Sent:* Thursday, September 8, 2022 8:46 PM > *To:* RE-wrenches > *Cc:* Mac Lewis > *Subject:* [RE-wrenches] Large current battery combiners, UL Listing > > > > Hello Wrenches, > > > > Is anyone aware of a high current, (~3000A DC rated, 48Vdc nominal) > battery combiner panel that would allow for ~36-48 x 4/0 cables to connect? > > > > Seems like nothing will be close to UL listed on this. How do you go > about building a 60 kW off-grid system on the battery side of things? Do I > need to increase battery voltage design? > > > > I have gotten a custom busbar fabricated by Storm Power rated for about > 2kA before, but I'd love to have a UL Listed solution for large battery > combining. Any suggestions are appreciated. > > > > Thanks! > > > > -- > > > > > > > > Mac Lewis > > "Yo solo sé que no sé nada." *-Sócrates* > ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 31st Anniversary 1991-2022!!* *www.vermont.solar* <https://nam02.safelinks.protection.outlook.com/?url=www.vermontsolarnow.com=02%7C01%7C%7C9f0330d75a244870112408d685311841%7C84df9e7fe9f640afb435%7C1%7C0%7C636842843233477645=0NjyuKeQbEK6245SNnk8X4XnP9Q%2B%2BqtvcALkdDghvk4%3D=0> dba Vermont Solar Engineering 802.863.1202 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
Re: [RE-wrenches] Battery Monitor for Li
But Blue Planet does not have a native SOC / voltage monitor. Egauge and Namaka, which I both have on several BI systems, do not correlate. Supposedly they are coming out with a native monitor soon. On Fri, Sep 2, 2022 at 5:51 PM Jerry Shafer via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > This has been an issue with me, these batteries all have a basic BMS and > then why does Simplify not support their own with a readable BMS, Fortress > has a monitor, Blue planet has a BMS. > Jerry > > On Fri, Sep 2, 2022 at 11:32 AM Matt Sherald via RE-wrenches < > re-wrenches@lists.re-wrenches.org> wrote: > >> Hello Friends, >> >> I have an off-grid customer for whom I recently installed some SimpliPhi >> 3.8kW batteries. This is an older system and it has a Trimetric battery >> monitor that the homeowners have used for years to keep an eye on their >> battery bank. >> >> The SimpliPhi batteries appear to be working fine at the site, but the >> homeowners feel uneasy b/c the Trimetric is reporting that they are >> finishing each charging cycle with an amp-hour deficit. The voltage of the >> SimpliPhi batteries indicate that they are getting fully charged and are >> doing so fairly early in the AM (solar is the primary power source). >> >> I've spoken with SimpliPhi tech folks and their hunch is that the >> Trimetric is not reporting correctly. They suggested that a Victron >> BMV-712 would be more accurate at tracking Percent Full etc... >> >> Do you folks think that the Victron is better at counting Ah in/out for >> Li batteries? Or is the Trimetric adequate - do I maybe just need to >> adjust the settings? >> >> Anyway, the implication that the Victron BMV was better at monitoring Li >> batteries has me curious and I will enjoy hearing what the group thinks. >> >> Thanks for your time! >> >> -Matt >> >> >> >> -- >> Matt Sherald >> PIMBY Energy, LLC >> 304-704-5943 >> >> www.getpimby.blogspot.com >> www.getpimby.com >> >> ___ >> List sponsored by Redwood Alliance >> >> Pay optional member dues here: http://re-wrenches.org >> >> List Address: RE-wrenches@lists.re-wrenches.org >> >> Change listserver email address & settings: >> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> >> There are two list archives for searching. When one doesn't work, try the >> other: >> https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ >> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org >> >> List rules & etiquette: >> http://www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> http://www.members.re-wrenches.org >> >> ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 31st Anniversary 1991-2022!!* *www.vermont.solar* <https://nam02.safelinks.protection.outlook.com/?url=www.vermontsolarnow.com=02%7C01%7C%7C9f0330d75a244870112408d685311841%7C84df9e7fe9f640afb435%7C1%7C0%7C636842843233477645=0NjyuKeQbEK6245SNnk8X4XnP9Q%2B%2BqtvcALkdDghvk4%3D=0> dba Vermont Solar Engineering 802.863.1202 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
Re: [RE-wrenches] Battery Monitor for Li
I’ve never installed simplify batteries. Do they make their own state of charge monitor? The trimetric has a perimeter called charge efficiency % You can tweak that to get it to match the any benchmark more closely. Also the trimetric should be reset to full on a regular basis, When you have confidence the batteries are full. All trimetrics drift off over time, especially given the unique charge characteristics of lithium-ion’s versus lead acid batteries. On Fri, Sep 2, 2022 at 2:32 PM Matt Sherald via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > Hello Friends, > > I have an off-grid customer for whom I recently installed some SimpliPhi > 3.8kW batteries. This is an older system and it has a Trimetric battery > monitor that the homeowners have used for years to keep an eye on their > battery bank. > > The SimpliPhi batteries appear to be working fine at the site, but the > homeowners feel uneasy b/c the Trimetric is reporting that they are > finishing each charging cycle with an amp-hour deficit. The voltage of the > SimpliPhi batteries indicate that they are getting fully charged and are > doing so fairly early in the AM (solar is the primary power source). > > I've spoken with SimpliPhi tech folks and their hunch is that the > Trimetric is not reporting correctly. They suggested that a Victron > BMV-712 would be more accurate at tracking Percent Full etc... > > Do you folks think that the Victron is better at counting Ah in/out for Li > batteries? Or is the Trimetric adequate - do I maybe just need to adjust > the settings? > > Anyway, the implication that the Victron BMV was better at monitoring Li > batteries has me curious and I will enjoy hearing what the group thinks. > > Thanks for your time! > > -Matt > > > > -- > Matt Sherald > PIMBY Energy, LLC > 304-704-5943 > > www.getpimby.blogspot.com > www.getpimby.com > > ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 31st Anniversary 1991-2022!!* *www.vermont.solar* <https://nam02.safelinks.protection.outlook.com/?url=www.vermontsolarnow.com=02%7C01%7C%7C9f0330d75a244870112408d685311841%7C84df9e7fe9f640afb435%7C1%7C0%7C636842843233477645=0NjyuKeQbEK6245SNnk8X4XnP9Q%2B%2BqtvcALkdDghvk4%3D=0> dba Vermont Solar Engineering 802.863.1202 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
Re: [RE-wrenches] GT inverter for SWWP turbine
The Skybox, I only have one installed, AC-coupled with a Solaredge 5kw inverter, it's been working fine for 9 mos, fingers crossed. But obviously I'm not using many of its touted features. Probably I'm dodging a bullet for that reason. On Fri, Aug 12, 2022 at 12:52 PM Nick A Lucchese via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > Interesting timing on this Skybox subject. Over the last few weeks I’ve > been getting requests for help from a local individual that has been > experiencing a lot of problems with his integration of Skyboxes and a > Fortress Evault. I am too overwhelmed with my own work to jump right in but > still trying to help him out in a limited manner as I feel bad for his > situation. Sounds like the two main issues he’s experiencing are lack of > success updating firmware in the Skyboxes and related miscommunication with > SOC between the components and the charge being terminated once the > batteries only reach 30% SOC. > > Is it worth the effort of believing once a successful firmware update is > completed that the associated problems will be remedied or would those of > you experiencing Skybox problems recommend swapping out the inverters > before any additional labor expenses are wasted? Seems like he is willing > to go for the latter but I’d rather not doom a decent product to e-waste if > it’s not necessary. I always avoided the Skybox myself due to their high > idle consumption so other than an afternoon training I have no experience > with this particular Outback offering. > > Enjoy your weekend, Nick > > > > On Aug 11, 2022, at 9:47 AM, Rich Nicol via RE-wrenches < > re-wrenches@lists.re-wrenches.org> wrote: > > > Same disastrous experience here as well with the Skyboxes. > We installed three – I now own them as I replaced them at my expense with > another competing product. > Worse solar product I dealt with in the last 15 years. > > > *From:* RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org > ] *On Behalf Of *Eric Smiley > via RE-wrenches > *Sent:* Thursday, August 11, 2022 12:40 PM > *To:* RE-wrenches > *Cc:* Eric Smiley > *Subject:* Re: [RE-wrenches] GT inverter for SWWP turbine > > Skybox is discontinued and tech support is limited. There are still > significant software issues with them that make them unreliable for battery > back-up. We are in the process of replacing the 3 Skyboxes we wish we had > never installed. > > <~WRD000.jpg> > > *Eric Smiley,* Project Manager > e...@vecoop.ca > T: 250.703.6004 <+12507036004> > T: 888.386.0116 <+18883860116> > *VIRIDIANENERGY.CA <https://viridianenergy.ca/>* > > *<~WRD000.jpg> <https://viridianenergy.ca/>* > > > On Wed, 10 Aug 2022 at 20:00, Maverick Brown via RE-wrenches < > re-wrenches@lists.re-wrenches.org> wrote: > > Jay > > Have you (or any Wrench willing to share) installed SkyBox? If so, can you > share your experience good or bad? > > Can you compare it to Sol-Ark? I’ve installed a half-dozen Sol-Arks but no > SkyBox yet. I think I have a customer where SkyBox would be a good fit, but > not enough personal data. > Thanks in advance. > > > Maverick Brown > Off-Grid Solar Commander since 2006 > *Maverick Solar Enterprises, Inc.* > * • Solar Commander Remote Power* > > * • SunFlow Systems Cathodic Protection *maver...@mavericksolar.com > 512-460-9825 > > > > > ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 31st Anniversary 1991-2022!!* *www.vermont.solar* <https://nam02.safelinks.protection.outlook.com/?url=www.vermontsolarnow.com=02%7C01%7C%7C9f0330d75a244870112408d685311841%7C84df9e7fe9f640afb435%7C1%7C0%7C636842843233477645=0NjyuKeQbEK6245SNnk8X4XnP9Q%2B%2BqtvcALkdDghvk4%3D=0> dba Vermont Solar Engineering 802.863.1202 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-w
[RE-wrenches] 26% to 30% ITC for 2022?
As we know, the FED tax credit will increase for 10 years (if it passes the House and signed into law) to 30%. But is it retro to calendar year 2022, or start in 2023? I have some customers making decisions based on this timing. Thanks. I found one interpretation suggesting it will be effective in 2022 but need some tangible proof. -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 31st Anniversary 1991-2022!!* *www.vermont.solar* <https://nam02.safelinks.protection.outlook.com/?url=www.vermontsolarnow.com=02%7C01%7C%7C9f0330d75a244870112408d685311841%7C84df9e7fe9f640afb435%7C1%7C0%7C636842843233477645=0NjyuKeQbEK6245SNnk8X4XnP9Q%2B%2BqtvcALkdDghvk4%3D=0> dba Vermont Solar Engineering 802.863.1202 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
Re: [RE-wrenches] off-grid AC coupling feasibility
Jerry- The pole mount does not exist for a few more weeks, so I have time to think about DC or AC coupling for it only. To clarify, the old roof 1.8 kw array is functional and has been charging the new blue ions through an old Outback pre-hub 60A controller(replacing it soon with a new FM60). So I do have existing dc-coupling already to get around dark start issues for the most part. Right now I'm starting to lean towards 100% DC coupling, hooking the new pole-mount array to an OB FM100 300vdc max 100A charge controller *IF* I can find one in time. At least then I can see everything on one dashboard (OpticsRE). Both Mate3s and hub 10.3 are already installed. One of the other things influencing my decision is the request from my customer to have it "grid-ready", which to them means the house is easier to sell when the time comes, if the buyer wants to bring in the grid power. I won't go into it, but it is a simpler solution (in terms of local hardware requirements) to AC-couple the new array with these utility rules in mind. So there is no fits-all solution to AC vs. DC coupling, as someone said. On Sat, Jul 30, 2022 at 3:58 PM Jerry Shafer via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > Its not clear to me if you will actually have a DC side coupled connection > in talking about the pole mount. If so then it does work but if not then > no, the big question is how would you restart the inverter to restart the > SE to start the charging process on the AC side, answer, you can't in most > cases. Example, SMA SI coupled with SMA 4K's, you have a dead battery, you > need to bring up the VDC to wake up the inverter to wake up and count down > the 4K's the trick here is to alter programming to instant start the 4K > upon getting VAC and hertz instead of the 300 sec count down. Something > else, LFP does not relax and get any parasitic voltage back to even start > the SI so changing the timers may still not work. Best bet is to have at > least some DC side PV to charge a dead battery without the inverters at > all. I did ac coupling with Trace and SMA 20 plus years ago and SMA said > then it was not possible. How the world has changed. fun times! > > On Sat, Jul 30, 2022, 9:31 AM Kirk Herander via RE-wrenches < > re-wrenches@lists.re-wrenches.org> wrote: > >> All, >> Anyone out there successfully AC-coupled inverters in an off-grid system? >> Advantages vs. pitfalls? >> >> In my case I'm thinking of its practicality with a Solaredge inverter >> AC-coupled to an OB Radian inverter. OB firmware makes this pretty easy >> now. So effectively the Radian is always operating in a grid-backup mode. >> >> I already upgraded the system to the Radian, and soon to add 5kw of >> pole-mounted PV(currently only 1.8kw of 22-year old PV on the roof). This >> system also just got 16kwh of Blue Ion LFP batteries. >> >> This is a last-minute thought I have instead of investing in additional >> DC charge controllers for the new array. >> Cost-wise there's not much of a difference between several high-quality >> charge controllers and a smaller SE inverter w/optimisers. Thanks. >> >> -- >> >> *Kirk Herander / **kirkh@vermont.solar * >> >> *Owner|Principal, VT Solar, LLC* >> >> *Celebrating our 31st Anniversary 1991-2022!!* >> >> *www.vermont.solar* >> <https://nam02.safelinks.protection.outlook.com/?url=www.vermontsolarnow.com=02%7C01%7C%7C9f0330d75a244870112408d685311841%7C84df9e7fe9f640afb435%7C1%7C0%7C636842843233477645=0NjyuKeQbEK6245SNnk8X4XnP9Q%2B%2BqtvcALkdDghvk4%3D=0> >> >> dba Vermont Solar Engineering >> >> 802.863.1202 >> ___ >> List sponsored by Redwood Alliance >> >> Pay optional member dues here: http://re-wrenches.org >> >> List Address: RE-wrenches@lists.re-wrenches.org >> >> Change listserver email address & settings: >> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> >> There are two list archives for searching. When one doesn't work, try the >> other: >> https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ >> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org >> >> List rules & etiquette: >> http://www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> http://www.members.re-wrenches.org >> >> ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://
[RE-wrenches] off-grid AC coupling feasibility
All, Anyone out there successfully AC-coupled inverters in an off-grid system? Advantages vs. pitfalls? In my case I'm thinking of its practicality with a Solaredge inverter AC-coupled to an OB Radian inverter. OB firmware makes this pretty easy now. So effectively the Radian is always operating in a grid-backup mode. I already upgraded the system to the Radian, and soon to add 5kw of pole-mounted PV(currently only 1.8kw of 22-year old PV on the roof). This system also just got 16kwh of Blue Ion LFP batteries. This is a last-minute thought I have instead of investing in additional DC charge controllers for the new array. Cost-wise there's not much of a difference between several high-quality charge controllers and a smaller SE inverter w/optimisers. Thanks. -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 31st Anniversary 1991-2022!!* *www.vermont.solar* <https://nam02.safelinks.protection.outlook.com/?url=www.vermontsolarnow.com=02%7C01%7C%7C9f0330d75a244870112408d685311841%7C84df9e7fe9f640afb435%7C1%7C0%7C636842843233477645=0NjyuKeQbEK6245SNnk8X4XnP9Q%2B%2BqtvcALkdDghvk4%3D=0> dba Vermont Solar Engineering 802.863.1202 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
Re: [RE-wrenches] LG chem RESU battery replacements
Thanks. All, I will have to bug them again about my replacements. On Wed, Jun 22, 2022 at 7:46 AM Scot Arey via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > This is the box. Had no idea this might be more scarce than a replacement > battery. > > Howard "Scot" Arey > Owner, Solar CenTex > 254-300-1228 > > -- > *From:* RE-wrenches on behalf > of Matthew Sherald via RE-wrenches > *Sent:* Wednesday, June 22, 2022, 5:53 AM > *To:* RE-wrenches > *Cc:* Matthew Sherald > *Subject:* Re: [RE-wrenches] LG chem RESU battery replacements > > I have a customer who was told by LG that a replacement is available for > her, but the return shipping box for the defective unit is not. LG said > they’d ship the new unit if the installer (me) agreed to store the > defective unit in the intervening weeks until the return boxes were ready. > LGs estimate on box availability was five weeks at earliest - that was > about four weeks ago. > > -Matt > > Sent from my iPhone > > On Jun 21, 2022, at 3:49 PM, Scot Arey via RE-wrenches < > re-wrenches@lists.re-wrenches.org> wrote: > > > > I have gotten some RMA replacement support for LG Resu10 primary units. As > many might know, the use of a second battery requires a LG with “secondary” > classification (firmware, I assume) and the two are not interchangeable. > The secondary units won’t be available until September. Crazy, I know. My > own personal secondary unit is bogged down in this. > > > > > > > > > > > > > > *From:* RE-wrenches *On > Behalf Of *Kirk Herander via RE-wrenches > *Sent:* Tuesday, June 21, 2022 1:38 PM > *To:* re-wrenches@lists.re-wrenches.org > *Cc:* Kirk Herander > *Subject:* [RE-wrenches] LG chem RESU battery replacements > > > > Has anyone heard of if these defective RESU units might ever be replaced > by LG? They don't reply to me anymore. I have -3- RMAs and have been > waiting months, as I know others have. > > And what might Solaredge's strategy be for an LG substitute with the > Storedge 7600 inverter? I know they are replacing Storedge with the > Energyhub model. > > > > -- > > *Kirk Herander / **kirkh@vermont.solar * > > *Owner|Principal, VT Solar, LLC* > > *Celebrating our 31st Anniversary 1991-2022!!* > > *www.vermont.solar* > <https://nam02.safelinks.protection.outlook.com/?url=www.vermontsolarnow.com=02%7C01%7C%7C9f0330d75a244870112408d685311841%7C84df9e7fe9f640afb435%7C1%7C0%7C636842843233477645=0NjyuKeQbEK6245SNnk8X4XnP9Q%2B%2BqtvcALkdDghvk4%3D=0> > > dba Vermont Solar Engineering > > 802.863.1202 > ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > > ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 31st Anniversary 1991-2022!!* *www.vermont.solar* <https://nam02.safelinks.protection.outlook.com/?url=www.vermontsolarnow.com=02%7C01%7C%7C9f0330d75a244870112408d685311841%7C84df9e7fe9f640afb435%7C1%7C0%7C636842843233477645=0NjyuKeQbEK6245SNnk8X4XnP9Q%2B%2BqtvcALkdDghvk4%3D=0> dba Vermont Solar Engineering 802.863.1202 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org C
[RE-wrenches] LG chem RESU battery replacements
Has anyone heard of if these defective RESU units might ever be replaced by LG? They don't reply to me anymore. I have -3- RMAs and have been waiting months, as I know others have. And what might Solaredge's strategy be for an LG substitute with the Storedge 7600 inverter? I know they are replacing Storedge with the Energyhub model. -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 31st Anniversary 1991-2022!!* *www.vermont.solar* <https://nam02.safelinks.protection.outlook.com/?url=www.vermontsolarnow.com=02%7C01%7C%7C9f0330d75a244870112408d685311841%7C84df9e7fe9f640afb435%7C1%7C0%7C636842843233477645=0NjyuKeQbEK6245SNnk8X4XnP9Q%2B%2BqtvcALkdDghvk4%3D=0> dba Vermont Solar Engineering 802.863.1202 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
Re: [RE-wrenches] dual channel charge controllers?
Hi Jay, It's a recently converted to 48 from 24v system with BI Hi LFP batteries. And I'd like to see all pv's online, hence my need for an up-to-date controller(s). Old controller (it replaced a Heliotrope PWM unit, man that's taking me back) Is actually an OB MX60, but too old for a hub port. New inverter is an OB Radian 4048. On Thu, Jun 2, 2022 at 12:06 PM Jay via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > Hi Kirk > > You didn’t give a lot of info but I don’t think there is a product that > meets your requirements. > > I’m guessing its either 24v or 48v system with with a C40 controller. > > Personally I’d leave the old system as 20 year old modules are not cost > effectively worth messing with. > And if you did, you’d get what a couple hundred watts more at max maybe? > > And then use the CC that best fits your system for the 5kw new. 100 amp, > midnite or OB or Schneider > > My 2 cents > Jay > > On Jun 1, 2022, at 3:31 PM, Kirk Herander via RE-wrenches < > re-wrenches@lists.re-wrenches.org> wrote: > > > All, > I have an off-grid customer adding more PV to their 20 yr old array. It > would be s convenient to find a dual channel controller to keep each > array separate, instead of sourcing separate new controllers for each > array. . The original controller is not mppt. Arrays are 2kw(old > Astropowers on roof) and 5kw( bifacials on ground), respectively. Mixing > and matching old and new will not work and is bad practice anyway. Thanks. > -- > > *Kirk Herander / **kirkh@vermont.solar * > > *Owner|Principal, VT Solar, LLC* > > *Celebrating our 31st Anniversary 1991-2022!!* > > *www.vermont.solar* > <https://nam02.safelinks.protection.outlook.com/?url=www.vermontsolarnow.com=02%7C01%7C%7C9f0330d75a244870112408d685311841%7C84df9e7fe9f640afb435%7C1%7C0%7C636842843233477645=0NjyuKeQbEK6245SNnk8X4XnP9Q%2B%2BqtvcALkdDghvk4%3D=0> > > dba Vermont Solar Engineering > > 802.863.1202 > ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 31st Anniversary 1991-2022!!* *www.vermont.solar* <https://nam02.safelinks.protection.outlook.com/?url=www.vermontsolarnow.com=02%7C01%7C%7C9f0330d75a244870112408d685311841%7C84df9e7fe9f640afb435%7C1%7C0%7C636842843233477645=0NjyuKeQbEK6245SNnk8X4XnP9Q%2B%2BqtvcALkdDghvk4%3D=0> dba Vermont Solar Engineering 802.863.1202 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
[RE-wrenches] dual channel charge controllers?
All, I have an off-grid customer adding more PV to their 20 yr old array. It would be s convenient to find a dual channel controller to keep each array separate, instead of sourcing separate new controllers for each array. . The original controller is not mppt. Arrays are 2kw(old Astropowers on roof) and 5kw( bifacials on ground), respectively. Mixing and matching old and new will not work and is bad practice anyway. Thanks. -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 31st Anniversary 1991-2022!!* *www.vermont.solar* <https://nam02.safelinks.protection.outlook.com/?url=www.vermontsolarnow.com=02%7C01%7C%7C9f0330d75a244870112408d685311841%7C84df9e7fe9f640afb435%7C1%7C0%7C636842843233477645=0NjyuKeQbEK6245SNnk8X4XnP9Q%2B%2BqtvcALkdDghvk4%3D=0> dba Vermont Solar Engineering 802.863.1202 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
Re: [RE-wrenches] Step up charge controllers?
it's just another issue I've had lately with older systems. The array is hardwired underneath on a 2+ story building @ 24v. An offgrid system being prepped to go ongrid w/ a new 240vac/48v inverter. 22 year-old Astropower 120w panels. El Sucko. On Thu, May 12, 2022 at 2:57 PM Jerry Shafer via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > If you have a pv combiner box, you may be able to restring from there and > use a 48 vdc charger > Jerry > > On Thu, May 12, 2022, 9:47 AM Kirk Herander via RE-wrenches < > re-wrenches@lists.re-wrenches.org> wrote: > >> Looking to charge a 48 V battery bank from a 24 V old PV array. I guess I >> could use a DC to DC converter, but wondering is there any charge >> controller out there versatile enough to do it for me?-- >> >> *Kirk Herander / **kirkh@vermont.solar * >> >> *Owner|Principal, VT Solar, LLC* >> >> *Celebrating our 31st Anniversary 1991-2022!!* >> >> *www.vermont.solar* >> <https://nam02.safelinks.protection.outlook.com/?url=www.vermontsolarnow.com=02%7C01%7C%7C9f0330d75a244870112408d685311841%7C84df9e7fe9f640afb435%7C1%7C0%7C636842843233477645=0NjyuKeQbEK6245SNnk8X4XnP9Q%2B%2BqtvcALkdDghvk4%3D=0> >> >> dba Vermont Solar Engineering >> >> 802.863.1202 >> ___ >> List sponsored by Redwood Alliance >> >> Pay optional member dues here: http://re-wrenches.org >> >> List Address: RE-wrenches@lists.re-wrenches.org >> >> Change listserver email address & settings: >> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> >> There are two list archives for searching. When one doesn't work, try the >> other: >> https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ >> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org >> >> List rules & etiquette: >> http://www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> http://www.members.re-wrenches.org >> >> ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 31st Anniversary 1991-2022!!* *www.vermont.solar* <https://nam02.safelinks.protection.outlook.com/?url=www.vermontsolarnow.com=02%7C01%7C%7C9f0330d75a244870112408d685311841%7C84df9e7fe9f640afb435%7C1%7C0%7C636842843233477645=0NjyuKeQbEK6245SNnk8X4XnP9Q%2B%2BqtvcALkdDghvk4%3D=0> dba Vermont Solar Engineering 802.863.1202 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
[RE-wrenches] Step up charge controllers?
Looking to charge a 48 V battery bank from a 24 V old PV array. I guess I could use a DC to DC converter, but wondering is there any charge controller out there versatile enough to do it for me?-- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 31st Anniversary 1991-2022!!* *www.vermont.solar* <https://nam02.safelinks.protection.outlook.com/?url=www.vermontsolarnow.com=02%7C01%7C%7C9f0330d75a244870112408d685311841%7C84df9e7fe9f640afb435%7C1%7C0%7C636842843233477645=0NjyuKeQbEK6245SNnk8X4XnP9Q%2B%2BqtvcALkdDghvk4%3D=0> dba Vermont Solar Engineering 802.863.1202 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
Re: [RE-wrenches] OB Radian question
Further Clarification, Overcurrent protection etc. already exists, i’m not about to spend another $1k or more to replace it. On Sat, May 7, 2022 at 7:56 PM Jerry Shafer via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > Just get an empty GSLC, at least it has the breakers > Jerry > > On Sat, May 7, 2022, 1:44 PM Kirk Herander via RE-wrenches < > re-wrenches@lists.re-wrenches.org> wrote: > >> Ok, time to break wrenches radio silence over the last week. >> >> My question concerns the Radian battery terminal connections. I don't >> need nor want to use the expensive GSLC box in a 23-y.o. off-grid upgrade >> to a Radian. That means the battery-to-inverter connections will be >> exposed, unless I find another way to enclose them. >> >> Do those OB snap-on terminal covers used with the FX series work with the >> Radian? Any other ideas? >> >> Thanks. Over and out. >> -- >> >> *Kirk Herander / **kirkh@vermont.solar * >> >> *Owner|Principal, VT Solar, LLC* >> >> *Celebrating our 31st Anniversary 1991-2022!!* >> >> *www.vermont.solar* >> <https://nam02.safelinks.protection.outlook.com/?url=www.vermontsolarnow.com=02%7C01%7C%7C9f0330d75a244870112408d685311841%7C84df9e7fe9f640afb435%7C1%7C0%7C636842843233477645=0NjyuKeQbEK6245SNnk8X4XnP9Q%2B%2BqtvcALkdDghvk4%3D=0> >> >> dba Vermont Solar Engineering >> >> 802.863.1202 >> ___ >> List sponsored by Redwood Alliance >> >> Pay optional member dues here: http://re-wrenches.org >> >> List Address: RE-wrenches@lists.re-wrenches.org >> >> Change listserver email address & settings: >> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> >> There are two list archives for searching. When one doesn't work, try the >> other: >> https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ >> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org >> >> List rules & etiquette: >> http://www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> http://www.members.re-wrenches.org >> >> ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 31st Anniversary 1991-2022!!* *www.vermont.solar* <https://nam02.safelinks.protection.outlook.com/?url=www.vermontsolarnow.com=02%7C01%7C%7C9f0330d75a244870112408d685311841%7C84df9e7fe9f640afb435%7C1%7C0%7C636842843233477645=0NjyuKeQbEK6245SNnk8X4XnP9Q%2B%2BqtvcALkdDghvk4%3D=0> dba Vermont Solar Engineering 802.863.1202 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
[RE-wrenches] OB Radian question
Ok, time to break wrenches radio silence over the last week. My question concerns the Radian battery terminal connections. I don't need nor want to use the expensive GSLC box in a 23-y.o. off-grid upgrade to a Radian. That means the battery-to-inverter connections will be exposed, unless I find another way to enclose them. Do those OB snap-on terminal covers used with the FX series work with the Radian? Any other ideas? Thanks. Over and out. -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 31st Anniversary 1991-2022!!* *www.vermont.solar* <https://nam02.safelinks.protection.outlook.com/?url=www.vermontsolarnow.com=02%7C01%7C%7C9f0330d75a244870112408d685311841%7C84df9e7fe9f640afb435%7C1%7C0%7C636842843233477645=0NjyuKeQbEK6245SNnk8X4XnP9Q%2B%2BqtvcALkdDghvk4%3D=0> dba Vermont Solar Engineering 802.863.1202 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
Re: [RE-wrenches] Is There an "Off-grid" (i.e. constant voltage) Version of Microinverters?
s & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or >> update participant bios: http://www.members.re-wrenches.org >> >> >> Peter T. Parrish, Ph.D. >> President, SolarGnosis >> 1107 Fair Oaks Blvd Ste. 351 >> South Pasadena, CA 91030 >> (323) 839-6108 >> ___ >> List sponsored by Redwood Alliance >> >> Pay optional member dues here: http://re-wrenches.org >> >> List Address: RE-wrenches@lists.re-wrenches.org >> >> Change listserver email address & settings: >> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> >> There are two list archives for searching. When one doesn't work, try the >> other: >> https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ >> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org >> >> List rules & etiquette: >> http://www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> http://www.members.re-wrenches.org >> >> ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 31st Anniversary 1991-2022!!* *www.vermont.solar* <https://nam02.safelinks.protection.outlook.com/?url=www.vermontsolarnow.com=02%7C01%7C%7C9f0330d75a244870112408d685311841%7C84df9e7fe9f640afb435%7C1%7C0%7C636842843233477645=0NjyuKeQbEK6245SNnk8X4XnP9Q%2B%2BqtvcALkdDghvk4%3D=0> dba Vermont Solar Engineering 802.863.1202 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
Re: [RE-wrenches] Is There an "Off-grid" (i.e. constant voltage) Version of Microinverters?
Cybo is quite interesting. Makes me want to change my refusal to install solar DHW anymore. On Sun, Apr 17, 2022 at 12:16 PM petertor--- via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > This is great information folks. It looks like Cybo has most of the load > scenarios covered. > > I have one last question before I call them on Monday morning: "Do the > Cybo inverters support LiFePO4 batteries? That is, does one of their four > DC inputs not only auto-detect batteries but does it recognize LiFePO4 vs. > PbAcid? It is my understanding that LiFePO4 batteries need a different > charging cycle compared to PbAcid to attain a 100% SOC. > > - Peter > > Peter T. Parrish, Ph.D. > President, California Solar Engineering > 1107 Fair Oaks Blvd Ste. 351 > South Pasadena, CA 91030 > (323) 839-6108 > > On 04/16/2022 3:59 PM Darryl Thayer via RE-wrenches < > re-wrenches@lists.re-wrenches.org> wrote: > > > yes, there are three versions of the cybo inverter, the one that I a most > familiar with produced a 60 HZ AC signal; the voltage did not exceed 120 > volts or 240 volts. The voltage out times the current out was equal to the > voltage in times current in. This allowed me to operate a resistance load, > like a water heater. > > On Sat, Apr 16, 2022 at 2:39 PM Glenn Burt via RE-wrenches < > re-wrenches@lists.re-wrenches.org> wrote: > > Take a look at Cybo inverters > > -Glenn > Sent from my 'smart'phone, so please excuse typos and spelling errors. > > -- Original message-- > *From: *petertor--- via RE-wrenches > *Date: *Sat, Apr 16, 2022 12:49 PM > *To: *re-wrenches@lists.re-wrenches.org; > *Cc: *peter...@pobox.com; > *Subject:*[RE-wrenches] Is There an "Off-grid" (i.e. constant voltage) > Version of Microinverters? > > It has been a while since I installed a PV system, so I apologize in > advance for my ignorance wrt product availability. > > I recently had need for the off-grid equivalent of a grid-tied > microinverter. I have an assortment of new and not so new PV modules such > as the Solaria mono, 400 Wp and the Jinko poly, 310 Wp. I would like a > microinverter that makes available 120 Vac (or 240 Vac but 120 is > preferable), 60 Hz. I would then take the output of these microinverters > and combine them in a subpanel. I do not have a need for battery storage. > > I can explain more about the application to anyone who has an interest. > > Does such an component exist? > > Thanks in advance for any help. > > - Peter > > Peter T. Parrish, Ph.D. > President, California Solar Engineering > 1107 Fair Oaks Blvd Ste. 351 > South Pasadena, CA 91030 > (323) 839-6108 > ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > ___ List sponsored by Redwood > Alliance Pay optional member dues here: http://re-wrenches.org List > Address: RE-wrenches@lists.re-wrenches.org Change listserver email > address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > There are two list archives for searching. When one doesn't work, try the > other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List > rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or > update participant bios: http://www.members.re-wrenches.org > > > Peter T. Parrish, Ph.D. > President, SolarGnosis > 1107 Fair Oaks Blvd Ste. 351 > South Pasadena, CA 91030 > (323) 839-6108 > ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://list
Re: [RE-wrenches] Enphase Legacy micro replacement
Thanks that is exactly my request to Enphase, that they verify software compatibility. On Fri, Apr 15, 2022 at 12:48 PM Jason Szumlanski via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > Kirk, > > We have seen many of the conversion kits not work out of the box. I > believe it is a firmware/software mismatch issue. If you call Enphase, ask > them to make sure the Envoy software is compatible with the conversion kit > microinverter and update all software. This should resolve the issue. > > Jason Szumlanski > > > > On Fri, Apr 15, 2022 at 12:45 PM Kirk Herander via RE-wrenches < > re-wrenches@lists.re-wrenches.org> wrote: > >> I have been dealing with a legacy Enphase system ever since the >> installation about 11-12 years ago. And I stopped using Enphase after the >> massive failure rate of these first gen M190 inverters. Almost all of them >> have been replaced at least once, the good news is I only have about -15- >> of the originals waiting to fail out of -113-. >> >> As some of you know RMA replacements were at first the original M190 >> (i.e. the type daisy chained w/ "internal" trunk cable), then the M215 with >> a dedicated trunk cable, sent with adapters to mate with the M190, lastly >> the IQ7 w/ its own adapters to the M190 and M215. >> >> So my system is 208, 3-phase. I just swapped out -5- more of the M190's >> with newer generation models and am getting "ac out of range" errors on >> half of the micros that were working fine before the swap. The error is not >> unique to any one string. >> >> I wonder if all this replacing with multi-gen micros has created a phase >> imbalance. Enphase stresses keeping the phases balanced, but I don't see >> how they can follow their own advice mating all these different micros >> together. I am awaiting their response. >> >> Are the original M190s a true 3-phase output? Or are they smart enough >> internally to balance the phases through some sort of switching? The M215s >> and IQ7 series are 208 single phase, and the trunk cable is wired in a >> repeating connector-to-connector: Line A-B, A-C, B-C single phase >> arrangement for balancing. All thoughts welcome, thanks. >> -- >> >> *Kirk Herander / **kirkh@vermont.solar * >> >> *Owner|Principal, VT Solar, LLC* >> >> *Celebrating our 31st Anniversary 1991-2022!!* >> >> *www.vermont.solar* >> <https://nam02.safelinks.protection.outlook.com/?url=www.vermontsolarnow.com=02%7C01%7C%7C9f0330d75a244870112408d685311841%7C84df9e7fe9f640afb435%7C1%7C0%7C636842843233477645=0NjyuKeQbEK6245SNnk8X4XnP9Q%2B%2BqtvcALkdDghvk4%3D=0> >> >> dba Vermont Solar Engineering >> >> 802.863.1202 >> ___ >> List sponsored by Redwood Alliance >> >> Pay optional member dues here: http://re-wrenches.org >> >> List Address: RE-wrenches@lists.re-wrenches.org >> >> Change listserver email address & settings: >> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> >> There are two list archives for searching. When one doesn't work, try the >> other: >> https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ >> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org >> >> List rules & etiquette: >> http://www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> http://www.members.re-wrenches.org >> >> ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 31st Anniversary 1991-2022!!* *www.vermont.solar* <https://nam02.safelinks.protection.outlook.com/?url=www.vermontsolarnow.com=02%7C01%7C%7C9f0330d75a244870112408d685311841%7C84df9e7fe9f640afb435%7C1%7C0%7C636842843233477645=0NjyuKeQbEK6245SNnk8X4XnP9Q%2B%2BqtvcALkdDghvk4%3D=0> dba Vermont Solar Engineer
[RE-wrenches] Enphase Legacy micro replacement
I have been dealing with a legacy Enphase system ever since the installation about 11-12 years ago. And I stopped using Enphase after the massive failure rate of these first gen M190 inverters. Almost all of them have been replaced at least once, the good news is I only have about -15- of the originals waiting to fail out of -113-. As some of you know RMA replacements were at first the original M190 (i.e. the type daisy chained w/ "internal" trunk cable), then the M215 with a dedicated trunk cable, sent with adapters to mate with the M190, lastly the IQ7 w/ its own adapters to the M190 and M215. So my system is 208, 3-phase. I just swapped out -5- more of the M190's with newer generation models and am getting "ac out of range" errors on half of the micros that were working fine before the swap. The error is not unique to any one string. I wonder if all this replacing with multi-gen micros has created a phase imbalance. Enphase stresses keeping the phases balanced, but I don't see how they can follow their own advice mating all these different micros together. I am awaiting their response. Are the original M190s a true 3-phase output? Or are they smart enough internally to balance the phases through some sort of switching? The M215s and IQ7 series are 208 single phase, and the trunk cable is wired in a repeating connector-to-connector: Line A-B, A-C, B-C single phase arrangement for balancing. All thoughts welcome, thanks. -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 31st Anniversary 1991-2022!!* *www.vermont.solar* <https://nam02.safelinks.protection.outlook.com/?url=www.vermontsolarnow.com=02%7C01%7C%7C9f0330d75a244870112408d685311841%7C84df9e7fe9f640afb435%7C1%7C0%7C636842843233477645=0NjyuKeQbEK6245SNnk8X4XnP9Q%2B%2BqtvcALkdDghvk4%3D=0> dba Vermont Solar Engineering 802.863.1202 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
Re: [RE-wrenches] Sol-Ark install
Sorry, just noticed the photo, great idea! On Thu, Apr 14, 2022 at 12:58 PM Kirk Herander wrote: > Thanks, I'd love to see some photos if you have them online somewhere. I > was impressed by your multi-breaker bypass interlock. Too bad no OEM can > think it through like that. > > On Thu, Apr 14, 2022 at 12:51 PM William Miller via RE-wrenches < > re-wrenches@lists.re-wrenches.org> wrote: > >> Kirk: >> >> >> >> I feel your pain. This is a big problem that we discovered with the >> first GSLC we installed. We ordered it prewired and it was a mess. We >> broke the tab off of one of the AC breakers by too much wire stress. We >> had to come up with a work-around for this problem. I will describe it >> below in hopes you find some use for this procedure. >> >> >> >> You can skip installing AC breakers in the GSLC and that frees up a lot >> of room. To make this work you need to supply an outboard breaker panel >> for Generator fed circuits and another for Inverter fed circuits. The AC >> leads run straight through the GSLC without landing. You can remove all of >> the AC buss bars. >> >> >> >> If you want bypass capabilities you need to provide for this in the >> inverter fed-panel. Most breaker manufacturers provide interlocks for two >> breakers. If you want more interlock capabilities you need to make a >> custom interlock. Let me know if you want more information on that process. >> >> >> >> For the PV leads, we cut off the bottom tab that holds the dead front and >> replace it with a hinge. We lower the dead-front for wiring. The PV leads >> all come up the back of the dead-front and hinge at the bottom. See >> attached photo. >> >> >> >> I hope this information helps. The Radian is a good product in my >> opinion and it is worth the effort to get around the limitation. >> >> >> >> William Miller >> >> >> >> Miller Solar >> >> 17395 Oak Road, Atascadero, CA 93422 >> >> 805-438-5600 >> >> www.millersolar.com >> >> CA Lic. 773985 >> >> >> >> >> >> *From:* RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] *On >> Behalf Of *Kirk Herander via RE-wrenches >> *Sent:* Thursday, April 14, 2022 8:30 AM >> *To:* RE-wrenches >> *Cc:* Kirk Herander >> *Subject:* Re: [RE-wrenches] Sol-Ark install >> >> >> >> I feel the same way about the Outback Radian GSLC box, once it's fully >> wired there's no room whatsoever, and sometimes you have to remove >> breakers and layers of wiring to re-access things for debug. Don't know how >> it meets code and ETL approval for wire space. >> >> On Thu, Apr 14, 2022 at 11:20 AM Jason Szumlanski via RE-wrenches < >> re-wrenches@lists.re-wrenches.org> wrote: >> >> This problem is not limited to one manufacturer. One example is the >> Enphase smart controller. While the small holes are big enough for #6 >> ground and neutral, you have to strip the wires perfectly and have the hand >> of a heart surgeon to get them in there. And conduit entry is a royal pain >> because the enclosure is tapered on the bottom and sides. >> >> >> >> Fortunately, all of these manufacturers seem to be making strides to make >> the roof installation easier. A little more attention to the electrical >> enclosures would be appreciated. >> >> >> >> Jason Szumlanski >> >> >> >> >> >> On Thu, Apr 14, 2022, 10:30 AM Dana Orzel via RE-wrenches < >> re-wrenches@lists.re-wrenches.org> wrote: >> >> We have done one Solark installation & I was shocked as to the lack of >> ground wire landing terminals & space. We added a 12126 metal box below to >> ease the # of entrances to two 11/4”. >> >> I jumpered a # 8 to a second ground bar to allow for additional landing >> locations. I called Solark to question this & the response to the question >> was “yeah we have heard this from other installers “. >> End of call. >> >> Dana Orzel >> >> C: 208.721.7003 >> >> E- d...@solarwork.com >> >> >> >> On Apr 13, 2022, at 8:21 PM, Maverick Brown via RE-wrenches < >> re-wrenches@lists.re-wrenches.org> wrote: >> >> Ron >> >> >> >> The Sol-Ark has two MPPT channels and has two separate landing spots for >> each MPPT channels. Each landing pair needs matching strings. 8 AWG wire >> barely fits so the Sol-Ark PV terminals
Re: [RE-wrenches] Sol-Ark install
Thanks, I'd love to see some photos if you have them online somewhere. I was impressed by your multi-breaker bypass interlock. Too bad no OEM can think it through like that. On Thu, Apr 14, 2022 at 12:51 PM William Miller via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > Kirk: > > > > I feel your pain. This is a big problem that we discovered with the first > GSLC we installed. We ordered it prewired and it was a mess. We broke the > tab off of one of the AC breakers by too much wire stress. We had to come > up with a work-around for this problem. I will describe it below in hopes > you find some use for this procedure. > > > > You can skip installing AC breakers in the GSLC and that frees up a lot of > room. To make this work you need to supply an outboard breaker panel for > Generator fed circuits and another for Inverter fed circuits. The AC leads > run straight through the GSLC without landing. You can remove all of the > AC buss bars. > > > > If you want bypass capabilities you need to provide for this in the > inverter fed-panel. Most breaker manufacturers provide interlocks for two > breakers. If you want more interlock capabilities you need to make a > custom interlock. Let me know if you want more information on that process. > > > > For the PV leads, we cut off the bottom tab that holds the dead front and > replace it with a hinge. We lower the dead-front for wiring. The PV leads > all come up the back of the dead-front and hinge at the bottom. See > attached photo. > > > > I hope this information helps. The Radian is a good product in my opinion > and it is worth the effort to get around the limitation. > > > > William Miller > > > > Miller Solar > > 17395 Oak Road, Atascadero, CA 93422 > > 805-438-5600 > > www.millersolar.com > > CA Lic. 773985 > > > > > > *From:* RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] *On > Behalf Of *Kirk Herander via RE-wrenches > *Sent:* Thursday, April 14, 2022 8:30 AM > *To:* RE-wrenches > *Cc:* Kirk Herander > *Subject:* Re: [RE-wrenches] Sol-Ark install > > > > I feel the same way about the Outback Radian GSLC box, once it's fully > wired there's no room whatsoever, and sometimes you have to remove > breakers and layers of wiring to re-access things for debug. Don't know how > it meets code and ETL approval for wire space. > > On Thu, Apr 14, 2022 at 11:20 AM Jason Szumlanski via RE-wrenches < > re-wrenches@lists.re-wrenches.org> wrote: > > This problem is not limited to one manufacturer. One example is the > Enphase smart controller. While the small holes are big enough for #6 > ground and neutral, you have to strip the wires perfectly and have the hand > of a heart surgeon to get them in there. And conduit entry is a royal pain > because the enclosure is tapered on the bottom and sides. > > > > Fortunately, all of these manufacturers seem to be making strides to make > the roof installation easier. A little more attention to the electrical > enclosures would be appreciated. > > > > Jason Szumlanski > > > > > > On Thu, Apr 14, 2022, 10:30 AM Dana Orzel via RE-wrenches < > re-wrenches@lists.re-wrenches.org> wrote: > > We have done one Solark installation & I was shocked as to the lack of > ground wire landing terminals & space. We added a 12126 metal box below to > ease the # of entrances to two 11/4”. > > I jumpered a # 8 to a second ground bar to allow for additional landing > locations. I called Solark to question this & the response to the question > was “yeah we have heard this from other installers “. > End of call. > > Dana Orzel > > C: 208.721.7003 > > E- d...@solarwork.com > > > > On Apr 13, 2022, at 8:21 PM, Maverick Brown via RE-wrenches < > re-wrenches@lists.re-wrenches.org> wrote: > > Ron > > > > The Sol-Ark has two MPPT channels and has two separate landing spots for > each MPPT channels. Each landing pair needs matching strings. 8 AWG wire > barely fits so the Sol-Ark PV terminals so they may only be rated for > 10AWG. > > > > I’m assuming you have a ground array The most common stringing method > would be to use a trench with conduit and THHN wire. You could also sleeve > a direct-burial cable into the ground. Calculate the voltage drop over the > distance to make sure 10AWG is adequate. If not, then make a junction, like > a MidNite or Outback combiner or an IMO switch at the array to get up the > right wire size, with an added MidNite Surge Protector or EMP shield > device. If it’s a long distance (larger wire size), add another combiner at > the inverter
Re: [RE-wrenches] Sol-Ark install
update participant bios: >> http://www.members.re-wrenches.org >> >> ___ >> List sponsored by Redwood Alliance >> >> Pay optional member dues here: http://re-wrenches.org >> >> List Address: RE-wrenches@lists.re-wrenches.org >> >> Change listserver email address & settings: >> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> >> There are two list archives for searching. When one doesn't work, try the >> other: >> https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ >> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org >> >> List rules & etiquette: >> http://www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> http://www.members.re-wrenches.org >> >> ___ >> >> ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 31st Anniversary 1991-2022!!* *www.vermont.solar* <https://nam02.safelinks.protection.outlook.com/?url=www.vermontsolarnow.com=02%7C01%7C%7C9f0330d75a244870112408d685311841%7C84df9e7fe9f640afb435%7C1%7C0%7C636842843233477645=0NjyuKeQbEK6245SNnk8X4XnP9Q%2B%2BqtvcALkdDghvk4%3D=0> dba Vermont Solar Engineering 802.863.1202 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
[RE-wrenches] Sharp ND-208U1 module
Looking for one of these as a replacement. Please contact me off list if you can help. Thanks. -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 31st Anniversary 1991-2022!!* *www.vermont.solar* <https://nam02.safelinks.protection.outlook.com/?url=www.vermontsolarnow.com=02%7C01%7C%7C9f0330d75a244870112408d685311841%7C84df9e7fe9f640afb435%7C1%7C0%7C636842843233477645=0NjyuKeQbEK6245SNnk8X4XnP9Q%2B%2BqtvcALkdDghvk4%3D=0> dba Vermont Solar Engineering 802.863.1202 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
Re: [RE-wrenches] 2nd VFX3648 added to double charger rate
And can't you just wire up the new inverter as a "dumb" battery charger only? If you don't need to double KW to loads, don't try to stack it, or connect it to the hub. Just cable it to the batteries, and wire the genny to it's AC in. NO AC out wiring. When genny is running, it should charge fine. A last resort. On Sun, Mar 20, 2022 at 10:14 AM John Blittersdorf < john.blittersd...@gmail.com> wrote: > Wrenches, I just added a 2nd VFX3648 stacked as SLAVE L1 to increase > charging of his new eVault 18.5 from 12kw Kohler gen. It connects to the > generator but doesn’t charge. I read in the manual that both inverters > must be the same firmware revision. Once hooked up I found that the added > inverter was rev #68 and the original one rev 61. Would it be possible to > switch which inverter is the master and have the newer one recognize the > older one.? Otherwise is my only option to put a new control board in the > original inverter? And possibly also in the new one. Anyone know what the > latest rev or last one was? > > John Blittersdorf > > ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 31st Anniversary 1991-2022!!* *www.vermont.solar* <https://nam02.safelinks.protection.outlook.com/?url=www.vermontsolarnow.com=02%7C01%7C%7C9f0330d75a244870112408d685311841%7C84df9e7fe9f640afb435%7C1%7C0%7C636842843233477645=0NjyuKeQbEK6245SNnk8X4XnP9Q%2B%2BqtvcALkdDghvk4%3D=0> dba Vermont Solar Engineering 802.863.1202 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
Re: [RE-wrenches] 2nd VFX3648 added to double charger rate
Do you have the proper hub 10.3 installed? And are the jumpers set correctly? Mate3S? it almost sounds like the slave is set in the Mate not to charge. And if not plugged into the correct hub port, stuff like this happens also. And the Mate3 might not work properly with newer inverters, as I remember. On Sun, Mar 20, 2022 at 10:55 AM Sindelar Solar wrote: > John, > I've never faced your situation so can't address it directly. However, I > don't think matching firmware requires replacing a control board. Can't you > just update the firmware to the latest for that legacy product using a > Mate3? > The firware for these should be available at > https://www.outbackpower.com/resources-mobile/technical-support/firmware-updates/item/fxr-vfxr-series-firmware-archive > Allan > > On 3/20/2022 8:14 AM, John Blittersdorf wrote: > > Wrenches, I just added a 2nd VFX3648 stacked as SLAVE L1 to increase > charging of his new eVault 18.5 from 12kw Kohler gen. It connects to the > generator but doesn’t charge. I read in the manual that both inverters > must be the same firmware revision. Once hooked up I found that the added > inverter was rev #68 and the original one rev 61. Would it be possible to > switch which inverter is the master and have the newer one recognize the > older one.? Otherwise is my only option to put a new control board in the > original inverter? And possibly also in the new one. Anyone know what the > latest rev or last one was? > > John Blittersdorf > > > ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & > settings:http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other:https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette:http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios:http://www.members.re-wrenches.org > > > -- > > *Allan Sindelar* > al...@sindelarsolar.com > New Mexico EE98J Journeyman Electrician > Founder (Retired), Positive Energy, Inc. > *505 780-2738 cell* > > > ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 31st Anniversary 1991-2022!!* *www.vermont.solar* <https://nam02.safelinks.protection.outlook.com/?url=www.vermontsolarnow.com=02%7C01%7C%7C9f0330d75a244870112408d685311841%7C84df9e7fe9f640afb435%7C1%7C0%7C636842843233477645=0NjyuKeQbEK6245SNnk8X4XnP9Q%2B%2BqtvcALkdDghvk4%3D=0> dba Vermont Solar Engineering 802.863.1202 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
Re: [RE-wrenches] alternatives to Outback GSLC xxxx box?
Thanks for the photos, they look good, gives me some ideas. On Tue, Mar 1, 2022 at 12:31 PM William Miller wrote: > Kirk: > > We purchase only the empty GSLC cabinets. They do include the breaker > brackets and bus bars. I have received the cabinets missing hardware so > check the inventory beforehand. > > Here are a few hints you probably already know: > > The shunts are the shoddiest construction and it is very easy to break the > plastic base. Torque the upper shunt bolt after all other bus hardware is > torqued. > > I recommend using two 175A breakers. For some troubleshooting procedures > it is necessary to isolate the two power modules. > > An empty GSLC cabinet makes an acceptable PV recombiner. We cut off the > bottom dead front tab and substitute a hinge. We wire the breakers with the > dead font tilted out flat and all leads hinging at the bottom. > > We never install any AC breakers in the GSLC cabinets. The back-wiring is > just too awkward. Instead we use outboard breaker panels or panel > boards—one for Gen Fed and one for Inverter Fed. > > For bypassing we fabricate custom slide plates bolted to the dead-front to > interlock output breakers. It’s not listed but with good craftsmanship it > looks official. > > Here are a few photos: > > > https://millersolar.com/MillerSolar/Portfolio/Inverters/battery_iinverters/JP_Radian/JP_Radian.html > > I hope the above info is helpful. > > William Miller > > On Tue, Mar 1, 2022 at 6:23 AM Kirk Herander wrote: > >> All, >> >> I am doing a multiple stacked Radian GS8048 system. And all I need in my >> design is two OB 175 a breakers in a box which integrates w/ each >> respective inverter. The manual bypass switch is useless, for all inverters >> need to be bypassed at once using a single external bypass. OB does not >> make a version of the GSLC which only has the inverter breakers. They do >> make an empty GSLC with nothing in it. But no mounting assembly for the >> breakers, and no add-on kit offering to do this either. >> I thought Midnite made something compatible, but don't see it on their >> web site. Any ideas? Thanks. >> >> -- >> >> *Kirk Herander / **kirkh@vermont.solar * >> >> *Owner|Principal, VT Solar, LLC* >> >> *Celebrating our 31st Anniversary 1991-2022!!* >> >> *www.vermont.solar* >> <https://nam02.safelinks.protection.outlook.com/?url=www.vermontsolarnow.com=02%7C01%7C%7C9f0330d75a244870112408d685311841%7C84df9e7fe9f640afb435%7C1%7C0%7C636842843233477645=0NjyuKeQbEK6245SNnk8X4XnP9Q%2B%2BqtvcALkdDghvk4%3D=0> >> >> dba Vermont Solar Engineering >> >> 802.863.1202 >> ___ >> List sponsored by Redwood Alliance >> >> Pay optional member dues here: http://re-wrenches.org >> >> List Address: RE-wrenches@lists.re-wrenches.org >> >> Change listserver email address & settings: >> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> >> There are two list archives for searching. When one doesn't work, try the >> other: >> https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ >> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org >> >> List rules & etiquette: >> http://www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> http://www.members.re-wrenches.org >> >> -- > > William Miller > Miller Solar.com > 895-438-5600 > www.millersolar.com > ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 31st Anniversary 1991-2022!!* *www.vermont.solar* <https://nam02.safelinks.protection.outlook.com/?url=www.vermontsolarnow.com=02%7C01%7C%7C9f0330d75a244870112408d685311841%7C84df9e7fe9f640afb435%7C1%7C0%7C636842843233477645=0NjyuKeQbEK6245SNnk8X4XnP9Q%2B%2BqtvcALkdDghvk4%3D=0> dba Vermont Solar
Re: [RE-wrenches] alternatives to Outback GSLC xxxx box?
Thanks all. I just found it is included as mentioned in the GSLC installation manual. Just not mentioned in the spec sheet about the assembly. On Tue, Mar 1, 2022 at 10:54 AM Kirpal wrote: > Kirk. Good morning. The 175A breaker assembly is included in the bare > GSLC box for the radians. You have to order the 175A breakers separately; > they are not included. The bare box includes a 500A 50MV shunt, the > breaker brackets to connect breakers to the inverter and that's it. No AC > buss bars are included. Negative and ground buss bars are included. > In a multi inverter system if 1000A 100mv shunt size is needed, note that > you can not mix 500A and 1000A shunts on a single flexnet DC. It doesn't > work. Shunts all have to be the same. I found this out the hard way. > > Sunny Regards, > Kirpal Khalsa > Oregon LRT#25 > Oregon Solarworks LLC > www.oregonsolarworks.com > 541-299-0402 > > > On Tue, Mar 1, 2022 at 6:23 AM Kirk Herander wrote: > >> All, >> >> I am doing a multiple stacked Radian GS8048 system. And all I need in my >> design is two OB 175 a breakers in a box which integrates w/ each >> respective inverter. The manual bypass switch is useless, for all inverters >> need to be bypassed at once using a single external bypass. OB does not >> make a version of the GSLC which only has the inverter breakers. They do >> make an empty GSLC with nothing in it. But no mounting assembly for the >> breakers, and no add-on kit offering to do this either. >> I thought Midnite made something compatible, but don't see it on their >> web site. Any ideas? Thanks. >> >> -- >> >> *Kirk Herander / **kirkh@vermont.solar * >> >> *Owner|Principal, VT Solar, LLC* >> >> *Celebrating our 31st Anniversary 1991-2022!!* >> >> *www.vermont.solar* >> <https://nam02.safelinks.protection.outlook.com/?url=www.vermontsolarnow.com=02%7C01%7C%7C9f0330d75a244870112408d685311841%7C84df9e7fe9f640afb435%7C1%7C0%7C636842843233477645=0NjyuKeQbEK6245SNnk8X4XnP9Q%2B%2BqtvcALkdDghvk4%3D=0> >> >> dba Vermont Solar Engineering >> >> 802.863.1202 >> ___ >> List sponsored by Redwood Alliance >> >> Pay optional member dues here: http://re-wrenches.org >> >> List Address: RE-wrenches@lists.re-wrenches.org >> >> Change listserver email address & settings: >> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> >> There are two list archives for searching. When one doesn't work, try the >> other: >> https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ >> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org >> >> List rules & etiquette: >> http://www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> http://www.members.re-wrenches.org >> >> ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 31st Anniversary 1991-2022!!* *www.vermont.solar* <https://nam02.safelinks.protection.outlook.com/?url=www.vermontsolarnow.com=02%7C01%7C%7C9f0330d75a244870112408d685311841%7C84df9e7fe9f640afb435%7C1%7C0%7C636842843233477645=0NjyuKeQbEK6245SNnk8X4XnP9Q%2B%2BqtvcALkdDghvk4%3D=0> dba Vermont Solar Engineering 802.863.1202 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
Re: [RE-wrenches] alternatives to Outback GSLC xxxx box?
Thanks, The GSLC spec sheet does not mention the breaker assembly is included, unless I missed it, I'll have to verify with OB, I was wondering about this. Lones from OB, if you are reading this, can you comment? On Tue, Mar 1, 2022 at 10:34 AM Bradley Bassett wrote: > I think the blank GSLC comes with the main breaker bracket and the bus > bars for connecting them. What I have not had a chance to try is connecting > the breaker bus that usually connects the bottom of the two main breakers > directly to the upper bus bars, and not installing the two breakers at all. > It seems like it would fit, but until I see it done I would not specify it. > I've often specified a single 250A breaker, usually in a MidNite BCB, to > each inverter so that a single 4/0 cable can be used to each inverter. I've > been specifying this since the Radian came out and have had no reports of > the breaker tripping. This keeps the necessary bus bar size for multiple > inverters at a lower rating. Four inverters can be kept within the 1000A > rating of the MidNite BCB and the 1000A shunt can be used for the FNDC. If > you put all of the charge controllers in a FW500 or FW1000 you can use > those shunts for the solar to the FNDC. > > Brad B > AEE Solar > > On Tue, Mar 1, 2022 at 6:23 AM Kirk Herander wrote: > >> All, >> >> I am doing a multiple stacked Radian GS8048 system. And all I need in my >> design is two OB 175 a breakers in a box which integrates w/ each >> respective inverter. The manual bypass switch is useless, for all inverters >> need to be bypassed at once using a single external bypass. OB does not >> make a version of the GSLC which only has the inverter breakers. They do >> make an empty GSLC with nothing in it. But no mounting assembly for the >> breakers, and no add-on kit offering to do this either. >> I thought Midnite made something compatible, but don't see it on their >> web site. Any ideas? Thanks. >> >> -- >> >> *Kirk Herander / **kirkh@vermont.solar * >> >> *Owner|Principal, VT Solar, LLC* >> >> *Celebrating our 31st Anniversary 1991-2022!!* >> >> *www.vermont.solar* >> <https://nam02.safelinks.protection.outlook.com/?url=www.vermontsolarnow.com=02%7C01%7C%7C9f0330d75a244870112408d685311841%7C84df9e7fe9f640afb435%7C1%7C0%7C636842843233477645=0NjyuKeQbEK6245SNnk8X4XnP9Q%2B%2BqtvcALkdDghvk4%3D=0> >> >> dba Vermont Solar Engineering >> >> 802.863.1202 >> ___ >> List sponsored by Redwood Alliance >> >> Pay optional member dues here: http://re-wrenches.org >> >> List Address: RE-wrenches@lists.re-wrenches.org >> >> Change listserver email address & settings: >> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> >> There are two list archives for searching. When one doesn't work, try the >> other: >> https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ >> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org >> >> List rules & etiquette: >> http://www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> http://www.members.re-wrenches.org >> >> ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 31st Anniversary 1991-2022!!* *www.vermont.solar* <https://nam02.safelinks.protection.outlook.com/?url=www.vermontsolarnow.com=02%7C01%7C%7C9f0330d75a244870112408d685311841%7C84df9e7fe9f640afb435%7C1%7C0%7C636842843233477645=0NjyuKeQbEK6245SNnk8X4XnP9Q%2B%2BqtvcALkdDghvk4%3D=0> dba Vermont Solar Engineering 802.863.1202 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
[RE-wrenches] alternatives to Outback GSLC xxxx box?
All, I am doing a multiple stacked Radian GS8048 system. And all I need in my design is two OB 175 a breakers in a box which integrates w/ each respective inverter. The manual bypass switch is useless, for all inverters need to be bypassed at once using a single external bypass. OB does not make a version of the GSLC which only has the inverter breakers. They do make an empty GSLC with nothing in it. But no mounting assembly for the breakers, and no add-on kit offering to do this either. I thought Midnite made something compatible, but don't see it on their web site. Any ideas? Thanks. -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 31st Anniversary 1991-2022!!* *www.vermont.solar* <https://nam02.safelinks.protection.outlook.com/?url=www.vermontsolarnow.com=02%7C01%7C%7C9f0330d75a244870112408d685311841%7C84df9e7fe9f640afb435%7C1%7C0%7C636842843233477645=0NjyuKeQbEK6245SNnk8X4XnP9Q%2B%2BqtvcALkdDghvk4%3D=0> dba Vermont Solar Engineering 802.863.1202 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
Re: [RE-wrenches] LG Chem batteries
I have one RESU bank failure (actually not on any of the recall lists). LG tells me they will send a replacement, but have no idea when, due to computer chip shortage. On Fri, Feb 25, 2022 at 10:22 AM Stuart Kriendler wrote: > We have had two LG Chem battery systems affected by the recall. >> It is now 3 months that one client has been without battery back up and >> ETA on RMA replacement is still weeks away. >> The vendor says approximately 10% of LG units are affected by the recall, >> that's a big loss. >> Funnily I was always worried about LMC and these were the only two LMC >> systems we installed, both needing recalls, complete loss. >> The word is that there will be more LMC recalls in general, Tesla >> possibly. >> >> We are happy with our LiFe solutions so far, and reckon Lead still has >> another few years at least as a sensible and trusted stationary solution >> for DC coupled systems until costs change. >> >> Good luck to everyone with LG product, we won't be speccing anything LG >> for the foreseeable future! Their modules were definitely quality, be >> interesting to see who buys the R/IP. >> > > -- > *Stuart Kriendler | Managing Director * > > 48 St. Johns Road, Pembroke, HM 07, Bermuda > > C: 1.441.599.2105 <(441)%20599-2105>|O: > 1.441.279.5907 <(441)%20279-5907>|www.BEsolar.bm > <http://www.besolar.bm/> > > [image: BE Solar.bm] <http://www.besolar.bm/> > > *OUR VISION: An efficient Bermuda powered by affordable renewable energy. * > *OUR MISSION: To provide the highest quality energy solutions accessible > to all. * > > The information contained in this transmission including any and all > attached files is strictly private and confidential and is intended solely > for the > i > ndividual(s) or entity named above in the To and Copy fields. If you > received this transmission in error, please delete it from your computer > system and notify us immediately. If you are not an intended recipient, > please be advised that any use, including viewing, printing, disseminating, > distributing, copying and re-transmitting of the information contained in > this transmission including any and all attached files is strictly > prohibited. > ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 31st Anniversary 1991-2022!!* *www.vermont.solar* <https://nam02.safelinks.protection.outlook.com/?url=www.vermontsolarnow.com=02%7C01%7C%7C9f0330d75a244870112408d685311841%7C84df9e7fe9f640afb435%7C1%7C0%7C636842843233477645=0NjyuKeQbEK6245SNnk8X4XnP9Q%2B%2BqtvcALkdDghvk4%3D=0> dba Vermont Solar Engineering 802.863.1202 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
Re: [RE-wrenches] Lithium battery in non cycling use
anecdotal, but Blue Planet told me their LFP battery can sit uninstalled in the box for several years with minimal self-discharge and no problems when put into service. On Wed, Feb 23, 2022 at 10:36 AM Jay wrote: > Hi all the lithium experts. > > Are there any issues with using LFP lithium in non cycling battery backup > mode. > Or specific settings, brands etc that should be considered when designing > for GTBB, non cycling. > > Thanks > > Jay > ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 31st Anniversary 1991-2022!!* *www.vermont.solar* <https://nam02.safelinks.protection.outlook.com/?url=www.vermontsolarnow.com=02%7C01%7C%7C9f0330d75a244870112408d685311841%7C84df9e7fe9f640afb435%7C1%7C0%7C636842843233477645=0NjyuKeQbEK6245SNnk8X4XnP9Q%2B%2BqtvcALkdDghvk4%3D=0> dba Vermont Solar Engineering 802.863.1202 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
Re: [RE-wrenches] Mate3s hangups
Yep, "gateway offline" id the OpticsRE message. I will explore the auto-reboot, is it programmable through OptisRE? I've never gotten a Mate3s to communicate over satellite internet. Just didn't work, even though the household LAN was fine over it. The customer had to invest in a Verizon cell modem( ie. jetpack) and I used the SIM card in a 3rd party modem, that works fine. On Wed, Feb 16, 2022 at 3:07 PM Dan Fink wrote: > Kirk -- Is it connected to OpticsRE, and do you get "Gateway Offline" > status when this happens? I've had weird offline intervals in the past, and > many Mate 3s firmware updates ago I set them to auto reboot every 24 hours > which fixed weird offline intervals. My experience with Mate 3s / OpticsRE > over HughesNet has been 50/50; works for some sites, not for others. The > auto reboot has fixed all my similar issues so far as Chris mentions, but I > have not had any problems with it not finding DHCP and getting back online > by itself after an internet outage. Never seen that before here. > Dan Fink > Owner, Buckville Energy Consulting LLC > IREC Certified Instructor for PV and Small Wind Installation > NABCEP Certified PV System Inspector > NABCEP PV Associate > d anbo...@gmail.com > 970-672-4342 > > > > > On Wed, Feb 16, 2022 at 12:24 PM Kirk Herander > wrote: > >> Hello all, >> >> I've had several Mates go offline (refuse to send data) to the host >> lately. Totally different sites. The front panel looks perfectly normal. >> But they can only be restored by unplugging the Lan and Hub cables, then a >> normal reboot will occur and OpticsRE is restored. Ideas??? >> >> -- >> >> *Kirk Herander / **kirkh@vermont.solar * >> >> *Owner|Principal, VT Solar, LLC* >> >> *Celebrating our 31st Anniversary 1991-2022!!* >> >> *www.vermont.solar* >> <https://nam02.safelinks.protection.outlook.com/?url=www.vermontsolarnow.com=02%7C01%7C%7C9f0330d75a244870112408d685311841%7C84df9e7fe9f640afb435%7C1%7C0%7C636842843233477645=0NjyuKeQbEK6245SNnk8X4XnP9Q%2B%2BqtvcALkdDghvk4%3D=0> >> >> dba Vermont Solar Engineering >> >> 802.863.1202 >> ___ >> List sponsored by Redwood Alliance >> >> Pay optional member dues here: http://re-wrenches.org >> >> List Address: RE-wrenches@lists.re-wrenches.org >> >> Change listserver email address & settings: >> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> >> There are two list archives for searching. When one doesn't work, try the >> other: >> https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ >> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org >> >> List rules & etiquette: >> http://www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> http://www.members.re-wrenches.org >> >> ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 31st Anniversary 1991-2022!!* *www.vermont.solar* <https://nam02.safelinks.protection.outlook.com/?url=www.vermontsolarnow.com=02%7C01%7C%7C9f0330d75a244870112408d685311841%7C84df9e7fe9f640afb435%7C1%7C0%7C636842843233477645=0NjyuKeQbEK6245SNnk8X4XnP9Q%2B%2BqtvcALkdDghvk4%3D=0> dba Vermont Solar Engineering 802.863.1202 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
[RE-wrenches] Mate3s hangups
Hello all, I've had several Mates go offline (refuse to send data) to the host lately. Totally different sites. The front panel looks perfectly normal. But they can only be restored by unplugging the Lan and Hub cables, then a normal reboot will occur and OpticsRE is restored. Ideas??? -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 31st Anniversary 1991-2022!!* *www.vermont.solar* <https://nam02.safelinks.protection.outlook.com/?url=www.vermontsolarnow.com=02%7C01%7C%7C9f0330d75a244870112408d685311841%7C84df9e7fe9f640afb435%7C1%7C0%7C636842843233477645=0NjyuKeQbEK6245SNnk8X4XnP9Q%2B%2BqtvcALkdDghvk4%3D=0> dba Vermont Solar Engineering 802.863.1202 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
Re: [RE-wrenches] ] Tesla Anywhere
That's the problem. They don't want to talk to you, unless maybe you're interested in buying solar shingles and storage as a package deal. I've applied for certification several times over the last 2 yrs, and no response. And present dealers tell me their dealer network is falling apart. No support whatsoever. Old Elon should concentrate more on his terrestrial interests instead of spaceman ambitions. On Tue, Feb 15, 2022 at 3:44 PM Dana Orzel wrote: > Very good! I was just about to ask the same question. I have 1 new > construction request for a “Tesla” system. Between Snow country [Where I > think the roof tile is not appropriate & from what I hear not available as > it is still in prototype testing & costing twice what Tesla wants to sell > it for] & the fact that I cannot get anyone at Tesla to call me back. > > > > I am wondering what other folks experience has been. > > > > > > > > Dana Orzel Great Solar Works, Inc. > > *C - 208.721.7003 d...@solarwork.com > * > > Idaho Contractor - # 028765 Idaho PV # 028374 > > NABCEP # 051112-136 www.greatsolarworks.com > > *"Responsible Technologies for Responsible People since 1988" * > > *P* Please consider the environment before printing this email. > > > > > > *From:* RE-wrenches *On > Behalf Of *Nicholas Welch > *Sent:* Tuesday, February 15, 2022 1:01 PM > *To:* RE-wrenches@lists.re-wrenches.org > *Subject:* [RE-wrenches] Tesla Anywhere > > > > Hello Wrenches, > > > > Has anyone here taken the plunge in partnering with Tesla for their "Tesla > Anywhere" program? If so, I'd love to chat off forum. Please let me know > and I will send my contact info. > > > > Thanks in advance, > > > > Nick Welch > > NC Electrical License #34779 > ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 31st Anniversary 1991-2022!!* *www.vermont.solar* <https://nam02.safelinks.protection.outlook.com/?url=www.vermontsolarnow.com=02%7C01%7C%7C9f0330d75a244870112408d685311841%7C84df9e7fe9f640afb435%7C1%7C0%7C636842843233477645=0NjyuKeQbEK6245SNnk8X4XnP9Q%2B%2BqtvcALkdDghvk4%3D=0> dba Vermont Solar Engineering 802.863.1202 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
Re: [RE-wrenches] Bricked Mate2
If you are talking about registering (to a new owner) a previously registered unit in OpticsRE, the old owner has to sign an Outback form confirming they no longer own the unit, as I recall. A pain for sure depending on the circumstance. On Sun, Feb 6, 2022 at 3:07 AM Foxfire Energy wrote: > Not sure we're talking about the same thing, but I seem to recall if you > hold down the far left and 3rd soft key (1&3 from the Left), while you > power up, it resets the Mate 2. > -- > *From:* RE-wrenches on behalf > of William Miller > *Sent:* Saturday, February 5, 2022 6:14 PM > *To:* RE-wrenches > *Subject:* [RE-wrenches] Bricked Mate2 > > Colleagues: > > Do any of you know how to reset a bricked Mate3? If I could reset if I > can donate it to one of my fixed-income clients. > > Thanks in advance. > -- > > William Miller > Miller Solar.com > 895-438-5600 > www.millersolar.com > ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 31st Anniversary 1991-2022!!* *www.vermont.solar* <https://nam02.safelinks.protection.outlook.com/?url=www.vermontsolarnow.com=02%7C01%7C%7C9f0330d75a244870112408d685311841%7C84df9e7fe9f640afb435%7C1%7C0%7C636842843233477645=0NjyuKeQbEK6245SNnk8X4XnP9Q%2B%2BqtvcALkdDghvk4%3D=0> dba Vermont Solar Engineering 802.863.1202 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
[RE-wrenches] Skybox manual charge using OpticsRE
Does anyone know in opticsRE how to initiate a manual grid charge using a OB Skybox? Thanks. Can't find the option, but I remember doing it before. Thanks. -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 31st Anniversary 1991-2022!!* *www.vermont.solar* <https://nam02.safelinks.protection.outlook.com/?url=www.vermontsolarnow.com=02%7C01%7C%7C9f0330d75a244870112408d685311841%7C84df9e7fe9f640afb435%7C1%7C0%7C636842843233477645=0NjyuKeQbEK6245SNnk8X4XnP9Q%2B%2BqtvcALkdDghvk4%3D=0> dba Vermont Solar Engineering 802.863.1202 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
Re: [RE-wrenches] Blue Planet 8kWh instllation
That seems very odd that that pos cable(to the breaker/ bmu) does not reach. I've done partial 2.0's before and that lead could reach any pos battery terminal, regardless of the shelf it's on. Am I missing something? Maybe 48v HI leads are different. I heat shrinked the unconnected busbar length as a sanity check, but I doubt they would ever tilt to potentially short on the chassis. On Mon, Jan 31, 2022 at 4:18 PM William Miller wrote: > Friends: > > > > I am installing my first Blue Planet system today. I ordered an 8kWh unit > so that means only 4 of the 8 battery positions are filled. I can’t find > anything on the Blue Planet site or in the literature on how to implement > only 4 battery modules. I have called every Blue Planet number I can and > the advice I have been given is to load only the bottom positions. The > problem with that advice is if I do that the internal positive lead will > not reach the top battery and the battery bus bars look like they will be > unsupported on the top and prone to bending and maybe shorting. > > > > This should be an easy manufacturer tech support answer, but I can’t seem > to get though or get an answer that makes sense. Have any of you installed > an 8kWh package and maybe have some guidance? > > > > Thank in advance. > > > > William Miller > > > > Miller Solar > > 17395 Oak Road, Atascadero, CA 93422 > > 805-438-5600 > > www.millersolar.com > > CA Lic. 773985 > > > > > ___ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > -- *Kirk Herander / **kirkh@vermont.solar * *Owner|Principal, VT Solar, LLC* *Celebrating our 31st Anniversary 1991-2022!!* *www.vermont.solar* <https://nam02.safelinks.protection.outlook.com/?url=www.vermontsolarnow.com=02%7C01%7C%7C9f0330d75a244870112408d685311841%7C84df9e7fe9f640afb435%7C1%7C0%7C636842843233477645=0NjyuKeQbEK6245SNnk8X4XnP9Q%2B%2BqtvcALkdDghvk4%3D=0> dba Vermont Solar Engineering 802.863.1202 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
