[RE-wrenches] Enphase Meter Wizard Mandatory as of July 15

2021-06-24 Thread Jason Szumlanski
friendly for those of us who actually know what we are doing. 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

Re: [RE-wrenches] Air Conditioning energy usage

2021-06-23 Thread Jason Szumlanski
and they consume about half of my electricity consumption. It's a tough design question for sure without data. I don't like these situations. In my opinion you really need to overshoot, especially on the battery capacity if it will be hard to add later. Obviously that gets expensive. Jason Szumlanski

Re: [RE-wrenches] Sol-Ark 12k w/ Generac Transfer Switch

2021-06-17 Thread Jason Szumlanski
ch to the neutral position upon loss of > utility but need an energized secondary source to latch into the secondary > position. > > You do pay more for the transfer switches with the independent brain but > it's worth not needing to provide added control signalling. > > &g

Re: [RE-wrenches] Sol-Ark 12k w/ Generac Transfer Switch

2021-06-17 Thread Jason Szumlanski
involved). Jason Szumlanski On Thu, Jun 17, 2021, 9:48 AM Dave Tedeyan wrote: > Hi Rick, > I have a similar situation with a GE transfer switch, but am curious to > hear what others have to say. My assumption was that the switch transfers > based on loss of 240V from the grid. B

Re: [RE-wrenches] Dial torque wrench for S-5 Clamps

2021-06-14 Thread Jason Szumlanski
also > been improved again with an angled set screw to eliminate the tilted seam > headache I spoke about above. Bonus! > > Nick > > > > On Jun 13, 2021, at 8:40 AM, Jason Szumlanski < > ja...@floridasolardesigngroup.com> wrote: > > Does anyone have a good recommendation

[RE-wrenches] Dial torque wrench for S-5 Clamps

2021-06-13 Thread Jason Szumlanski
Does anyone have a good recommendation for an easy to use model on the roof? My cheap one finally broke and it was hard to read anyway. Or should I bite the bullet and get a calibrated impact driver? Or both? Jason Szumlanski Florida Solar Design Group

Re: [RE-wrenches] sol-ark

2021-06-12 Thread Jason Szumlanski
I just reread that manual today to design a new system and I believe it will do exactly what you want. There is a grid-no sell mode. Jason Szumlanski Florida Solar Design Group On Sat, Jun 12, 2021, 3:22 PM jay wrote: > HI All, > > I have an application that I think is perfect for th

Re: [RE-wrenches] Chilicon Microinverters AC Coupled with Generators

2021-06-03 Thread Jason Szumlanski
he sun goes >> down. It does sound like a good way damage electronics (loads) if not done >> perfectly! >> >> >> >> *Dave Angelini Offgrid Solar >> "we go where powerlines don't" >> http://members.sti.net/offgridsolar/ <http://members.sti.n

Re: [RE-wrenches] Chilicon Microinverters AC Coupled with Generators

2021-06-02 Thread Jason Szumlanski
ystems - with or without batteries. > > > https://www.sma.de/en/industrial-systems/fuel-save-solution-for-hybrid-systems.html > > So no reason it can't be done on a smaller scale. > > Best, > > Jeff > Village Power Design > > Jason Szumlanski > June 1, 2021 at 3:51

Re: [RE-wrenches] Chilicon Microinverters AC Coupled with Generators

2021-06-01 Thread Jason Szumlanski
ics.=1613865=86c145b44a7c38ec> Jason Szumlanski Florida Solar Design Group On Tue, May 25, 2021 at 8:24 PM Jay wrote: > Installing PV/inverters to a generator is a common practice. > One must make sure you don’t ever have more PV/inverter than load to > prevent either generator dama

Re: [RE-wrenches] Chilicon Microinverters AC Coupled with Generators

2021-05-25 Thread Jason Szumlanski
fgridsolar/> > e-mail offgridso...@sti.net > text 209 813 0060* > > On Tue, 25 May 2021 06:32:33 -0400, Jason Szumlanski < > ja...@floridasolardesigngroup.com> wrote: > > > Has anyone tried to AC couple these microinverters with a generator output > to reduce

[RE-wrenches] Chilicon Microinverters AC Coupled with Generators

2021-05-25 Thread Jason Szumlanski
Has anyone tried to AC couple these microinverters with a generator output to reduce fuel consumption? They claim it can be done with their "volt-watt" mode. I'm skeptical but interested nonetheless. Jason Szumlanski Florida Solar Design Group N

[RE-wrenches] Dual Sol-Ark Inverter 120/240V

2021-05-24 Thread Jason Szumlanski
the long lead times on transfer switches these days and added cost of load management features and generator start features, can anyone recommend a no frills automatic xfer switch that is readily available? Jason Szumlanski Florida Solar Design Group ___ List

[RE-wrenches] SMA Data Manager M

2021-05-10 Thread Jason Szumlanski
bypassing the https security alert. 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

Re: [RE-wrenches] Wago Connectors (221 series)

2021-05-10 Thread Jason Szumlanski
her reason to send a donation to > Michael Welch. > > Christopher > > On Mon, May 10, 2021 at 3:29 PM Jason Szumlanski < > ja...@floridasolardesigngroup.com> wrote: > >> I agree and I just got written confirmation from Wago that said >> (regarding the 221-

Re: [RE-wrenches] Wago Connectors (221 series)

2021-05-10 Thread Jason Szumlanski
ville 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 Fri, May 7, 2021 at 3:43 PM Jason Szumlanski < > ja.

[RE-wrenches] Wago Connectors (221 series)

2021-05-07 Thread Jason Szumlanski
splices for conductors up to #10 AWG inside junction boxes. 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

Re: [RE-wrenches] Generator and AC coupling on a Sol-Ark

2021-05-07 Thread Jason Szumlanski
at the solar backfeeds the >>> generator and breaks it. >>> >>> For off-grid maybe A would be more of a concern. But for grid tied, I >>> would think option B would be worse. >>> >>> Does anyone have a fail safe method of d

Re: [RE-wrenches] Generator and AC coupling on a Sol-Ark

2021-05-04 Thread Jason Szumlanski
What happens when the contactor fails? I don't trust a NC contactor that is supposed to open on 240Vac coil voltage from the generator. It's not a failsafe solution. Jason On Tue, May 4, 2021, 3:15 PM Drake wrote: > P.S. The contactor method is even mentioned somewhere in the Outback >

Re: [RE-wrenches] MC4s are listed for THWN, right?

2021-04-29 Thread Jason Szumlanski
Some junction boxes have specific instructions for weep holes. For scepter PVC junction boxes you can drill a 3/16 inch hole in the bottom to make a nema 4 enclosure nema 3R. The instructions are etched into the bottom of the box. Jason On Thu, Apr 29, 2021, 11:46 AM Ray wrote: > Hi Glenn; >

Re: [RE-wrenches] MC4s are listed for THWN, right?

2021-04-28 Thread Jason Szumlanski
ying a batch of these out, but I hadn't considered using > them in exterior J-boxes. > > https://www.wago.com/global/electrical-interconnections/discover-installation-terminal-blocks-and-connectors/221 > August > > On Tue, Apr 27, 2021 at 10:42 AM Jason Szumlanski < > ja.

Re: [RE-wrenches] MC4s are listed for THWN, right?

2021-04-27 Thread Jason Szumlanski
I'd be interested to hear thoughts on Wago 221-6XX series connectors, specifically for THWN to Enphase IQ/DG/TC conductor transitions or just THWN splices. On Mon, Apr 26, 2021, 8:40 PM Blake Gleason wrote: > Corey, > > Thank you! Agreed, the message from Staubli's Eng dept is much less >

Re: [RE-wrenches] Trend away from roof flashings???

2021-04-23 Thread Jason Szumlanski
I'd strongly recommend everyone look into the IronRidge FlashVue. At risk of causing supply shortages, maybe the price will come down at scale. But they are not prohibitively expensive now. The big hole that allows you to find the pilot hole is a really nice feature. I'm saying goodbye the the

Re: [RE-wrenches] Trend away from roof flashings???

2021-04-21 Thread Jason Szumlanski
This was brought up in a previous thread possibly years ago, but we can't use Geocel 4500 in at least one jurisdiction here because it lacks ASTM testing to some required standards that the AHJ is looking for. I can't remember if that was D4586 or C920. I confirmed with Geocel at the time that the

Re: [RE-wrenches] Trend away from roof flashings???

2021-04-21 Thread Jason Szumlanski
courtyard lighting. I'm doing it as a bit of a test because of the lateral stresses imposed on the bolt. Only time will tell how it holds up. For now, I don't trust it enough to install it for a paying client. Jason Szumlanski Florida Solar Design Group On Wed, Apr 21, 2021, 10:40 AM Jeremy Coxon

Re: [RE-wrenches] Powerwall 2 AC PV regulation

2021-04-17 Thread Jason Szumlanski
I think the limit is now stated as 7.6kw if memory serves me right. Jason On Fri, Apr 16, 2021, 12:11 PM Matt Partymiller wrote: > They used to advocate 7.9kW AC/DC per Powerwall. That number may have > gone down recently. Coupling an inverter on the line side of the backup > gateway will

Re: [RE-wrenches] Charging 48V Battery with One Module

2021-04-12 Thread Jason Szumlanski
ill be high enough to hit absorb set points for lithium > options even after heating up. A luxury we didn’t have in the past with FLA > and periodic requirements for EQ’ing. I know two 60 cell modules is much > more footprint than a single but at least we have that. > > Enjoy your nigh

Re: [RE-wrenches] Charging 48V Battery with One Module

2021-04-12 Thread Jason Szumlanski
Try looking at > Genasun GVB-8-Li > Good Luck! > > > On Mon, Apr 12, 2021 at 11:43 AM Jason Szumlanski < > ja...@floridasolardesigngroup.com> wrote: > >> I want to charge a 51.2V LiPO battery with a single 420W 72-cell module. >> Vmp is 40.14V. >> >&

Re: [RE-wrenches] Charging 48V Battery with One Module

2021-04-12 Thread Jason Szumlanski
I considered a 96-cell panel, but the highest watt panels don't compare to new 72-cell panels coming out in the 400+ watt range. It's a good fallback position because I might be losing more in the conversion than I am gaining in the higher power output. Jason Szumlanski On Mon, Apr 12, 2021

[RE-wrenches] Charging 48V Battery with One Module

2021-04-12 Thread Jason Szumlanski
in advance, Jason Szumlanski Florida Solar Design Group ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenche

Re: [RE-wrenches] Odd inspection procedure

2021-03-31 Thread Jason Szumlanski
ple failed inspections. based on some of the systems I have had to clean up, I'm not surprised and I'm pretty relieved. But the structural problems slip under the radar. Jason Szumlanski On Wed, Mar 31, 2021, 1:37 PM William Miller wrote: > Friends: > > > > We just finished a g

Re: [RE-wrenches] how to prevent selling to grid with grid tie inverter

2021-03-31 Thread Jason Szumlanski
I think this highlights my point. Zero export is not "really" zero export in this case and the use of a third-party energy meter to provide net consumption data would surely not qualify the inverter as a listed device for this purpose. While I'm sure most utilities will accept an inverter designed

Re: [RE-wrenches] how to prevent selling to grid with grid tie inverter

2021-03-31 Thread Jason Szumlanski
gt; SE > SolArk > To name 2. > > Are you saying that the UL listing isn’t enough and that it needs 3rd > party testing. > If so what organization/testing would that be? > > Jay > Peltz power > > On Mar 31, 2021, at 8:27 AM, Jason Szumlanski < > ja...@floridasola

Re: [RE-wrenches] how to prevent selling to grid with grid tie inverter

2021-03-31 Thread Jason Szumlanski
?url=http%3A%2F%2Fwww.frenergy.net=1613865=ee5367a4466e2a21> > > On 3/31/2021 4:35 AM, Jason Szumlanski wrote: > > I wonder how quick these software based approaches are to respond to loads > that drop off and momentary selling that may occur before production is > curtailed.

Re: [RE-wrenches] how to prevent selling to grid with grid tie inverter

2021-03-31 Thread Jason Szumlanski
be accomplished. It's an interesting question. I can see a small utility not accepting a non-failsafe software based solution unless it can be shown to be 100% effective via third party listing/certification. Jason Szumlanski Florida Solar Design Group On Wed, Mar 31, 2021, 7:29 AM Will White

Re: [RE-wrenches] Batteries and Working Spaces

2021-03-27 Thread Jason Szumlanski
> > ---- Original message > From: Jason Szumlanski > Date: 3/26/21 12:41 PM (GMT-08:00) > To: RE-wrenches > Subject: [RE-wrenches] Batteries and Working Spaces > > I am planning a battery backup system using Fortress 18.5kWh eVaults. Due > to flood level

Re: [RE-wrenches] Batteries and Working Spaces

2021-03-27 Thread Jason Szumlanski
g that reasonably accessible would be important. > > Also, just out of curiosity, how are you planning of getting these battery > cabinets onto their 4’ platform? Forklift? Ramp? > > On Fri, Mar 26, 2021 at 3:40 PM Jason Szumlanski < > ja...@floridasolardesigngroup.com> wrote: &

[RE-wrenches] 54-Cell Solar Modules

2021-03-26 Thread Jason Szumlanski
I'm looking for two 54-cell modules, highest power possible, for a mobile solar project requiring modules under 61 inches long. If you know where I can get these, please let me know off-list. Jason Szumlanski Florida Solar Design Group ___ List

[RE-wrenches] Batteries and Working Spaces

2021-03-26 Thread Jason Szumlanski
aside the practical problems with mounting heavy battery cabinets well above grade? Jason Szumlanski Florida Solar Desing Group ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & setti

Re: [RE-wrenches] Flexible panel install on airstream

2021-03-24 Thread Jason Szumlanski
Butyl tape is great when sandwiched between a metal roof and another material. Chemlink m1 also sticks underwater. Geocel 4500 is great, but it lacks some ASTM certifications required for use on roofing, so we don't use it anymore. I expect it would work well in this application, however. You

Re: [RE-wrenches] Protecting New Roofing during Summer

2021-03-10 Thread Jason Szumlanski
e extra gentle as I move > around- sort of in that ‘Grasshopper’ kind of way. > > Jeremy Coxon NABCEP > Certified MWBE > > Sent from my iPhone > > On Mar 9, 2021, at 6:47 PM, Jason Szumlanski < > ja...@floridasolardesigngroup.com> wrote: > >  > Jeremy, > > Are you say

Re: [RE-wrenches] Protecting New Roofing during Summer

2021-03-09 Thread Jason Szumlanski
Jeremy, Are you saying the foam soles are great for metal roofs or are you talking about the SteelWalker magnetic boots from Cougar Paws? Jason On Tue, Mar 9, 2021 at 5:49 PM Jeremy Coxon wrote: > To answer your question August - they have replaceable foam soles that > come in different

Re: [RE-wrenches] Enphase IQ7A 3 phase limitations

2021-03-04 Thread Jason Szumlanski
nverter at > rated power is worse than I assumed. > > Cheers, > Dave > > On Wed, Mar 3, 2021, 6:14 PM Jason Szumlanski < > ja...@floridasolardesigngroup.com> wrote: > >> I've used that document many times when clients question the ratio. I >> wish I knew e

[RE-wrenches] SMA Piggyback RS-485

2021-03-04 Thread Jason Szumlanski
Does anyone have two of these on the shelf that will work with both Sunny Boys (SB9000TL-US-12) and Sunny Islands (SI6048-US-10)? If you're willing to part with them I need a couple quickly. Contact me off list please. ___ List sponsored by Redwood

Re: [RE-wrenches] Enphase IQ7A 3 phase limitations

2021-03-03 Thread Jason Szumlanski
*Subject:* Re: [RE-wrenches] Enphase IQ7A 3 phase limitations > > > > Emphase has a white paper showing production vs module size and locations > around the country. > > > > I don’t know if it’s more accurate than pv watts but you might check it > out. > &g

Re: [RE-wrenches] Enphase IQ7A 3 phase limitations

2021-03-03 Thread Jason Szumlanski
It is. On Wed, Mar 3, 2021, 4:04 PM Jay wrote: > Emphase has a white paper showing production vs module size and locations > around the country. > > I don’t know if it’s more accurate than pv watts but you might check it > out. > > Jay > Peltz power. > > On Mar 3, 2021,

Re: [RE-wrenches] Enphase IQ7A 3 phase limitations

2021-03-03 Thread Jason Szumlanski
a non-issue in my local area, but it may vary in other locations where clipping is more common. The heat here results in little clipping at a 132% ratio here, and I guess at 145% the morning and afternoon advantages largely outweigh the mid-day clipping increase. Jason Szumlanski On Tue, Mar 2

[RE-wrenches] Enphase IQ7A 3 phase limitations

2021-03-02 Thread Jason Szumlanski
I was surprised to learn that the IQ7A is limited to 290 W continuous at 208 volts. That pretty much puts Enphase out of the running for light commercial jobs with new high-powered 72 cell panels. Any thoughts on this? Jason ___ List sponsored by

Re: [RE-wrenches] Enphase IQ Envoy Distance for Monitoring

2021-03-01 Thread Jason Szumlanski
ertified B-Corporation since 2013 > > > > > > On Mon, Mar 1, 2021 at 12:20 PM Glenn Burt wrote: > > I have used a few different WiFi range extenders successfully to ge > internet to a remotely located array. > > > > -Glenn > > Sent from my 'smart'phone, so please excus

Re: [RE-wrenches] Enphase IQ Envoy Distance for Monitoring

2021-03-01 Thread Jason Szumlanski
ers successfully to ge >> internet to a remotely located array. >> >> -Glenn >> Sent from my 'smart'phone, so please excuse typos and spelling errors. >> >> -- Original message-- >> *From: *Jason Szumlanski >> *Date: *Mon, Mar 1, 2021 10:39 AM &

Re: [RE-wrenches] Enphase IQ Envoy Distance for Monitoring

2021-03-01 Thread Jason Szumlanski
few different WiFi range extenders successfully to ge > internet to a remotely located array. > > -Glenn > Sent from my 'smart'phone, so please excuse typos and spelling errors. > > -- Original message-- > *From: *Jason Szumlanski > *Date: *Mon, Mar 1, 2021 10:39 AM

[RE-wrenches] Enphase IQ Envoy Distance for Monitoring

2021-03-01 Thread Jason Szumlanski
the array and worry about getting Internet out there. I know Cellular is an option, but I hate the 6-hour delay in data acquisition. Thanks, Jason Szumlanski Florida Solar Design Group ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re

Re: [RE-wrenches] What would you do/say?

2021-02-24 Thread Jason Szumlanski
Ditto to Ray and I would add that you have no idea how the batteries were treated or mistreated. I would insist on replacing the batteries or having a very clear and strong disclaimer that you take no responsibility for the condition of the batteries or their longevity. Unfortunately, I had a

Re: [RE-wrenches] PV on north roof

2021-02-21 Thread Jason Szumlanski
-in-southwest-florida/ If your client is in SW Florida I'd be happy to help in any way I can. Contact me off list. Jason Szumlanski Florida Solar Design Group On Sun, Feb 21, 2021, 4:00 PM Kirk Herander, VSE wrote: > All, > > Apparently this is not necessarily a bad idea anymore (fr

[RE-wrenches] Sketchup for Solar Shading Analysis

2021-02-19 Thread Jason Szumlanski
tps://mailtrack.io/trace/link/780ff277fb02d6b33f100e759a01b63a268cd734?url=https%3A%2F%2Fwww.youtube.com%2Fembed%2FlxJygizGxq8=1613865=986b61f306e4c92f> Jason Szumlanski Florida Solar Design Group ___ List sponsored by Redwood Alliance List Address: RE-wr

Re: [RE-wrenches] GVFX3524 fan replacement

2021-02-14 Thread Jason Szumlanski
Easy swap. On Sun, Feb 14, 2021, 8:15 PM Ron Young wrote: > Hi Wrenches, I have a client with an Outback GVFX3524 inverter that has > had a fan failure. I will check with Outback but thought I might get a head > start here. Is this a field replaceable item? I know the boards are but not > sure

Re: [RE-wrenches] Sol ark 120v issues

2021-02-09 Thread Jason Szumlanski
Is anyone aware if this is alleviated with a parallel connected pair of inverters? I'm not saying that is the right solution, but it might not matter in a larger parallel connected system. On Tue, Feb 9, 2021, 10:24 AM Jay wrote: > It is odd that the 12kw 20kw surge sol ark can’t run a 15 amp

Re: [RE-wrenches] home energy monitors

2021-02-07 Thread Jason Szumlanski
I should also mention Dead simple installation. On Sun, Feb 7, 2021, 4:27 PM Jason Szumlanski < ja...@floridasolardesigngroup.com> wrote: > Sense is great. It does take a long time to learn appliances. Over a year > in and mine at home is still learning some loads. But it picke

Re: [RE-wrenches] home energy monitors

2021-02-07 Thread Jason Szumlanski
for satellite internet for those far off-grid locations. Jason Szumlanski Florida Solar Design Group On Sun, Feb 7, 2021, 1:17 PM jay wrote: > Hi All, > > I’m wondering what you recommend for whole house energy monitors with > solar option. > > There seem to be two basic types.

Re: [RE-wrenches] Just saw this and thought it worth sharing

2021-02-05 Thread Jason Szumlanski
, that would be great. Jason Szumlanski Florida Solar Design Group On Fri, Feb 5, 2021, 5:40 PM Jeremy Coxon wrote: > Very interesting video, now I know Fronius is pointing fingers at Micro > manufacturers but the demo seems to back up their proposal to scrap the 80V > limit. This is ye

Re: [RE-wrenches] fortress power question

2021-02-01 Thread Jason Szumlanski
I think this was mentioned by others, but Fortress confirmed to me today that closed loop only works with one or two evault batteries with Sol-Ark. More than that and communications breaks down. They're working on a fix, but they told me that there are no guarantees. They could not give me a date.

Re: [RE-wrenches] Energy Storage and Working Spaces for Other Equipment

2021-02-01 Thread Jason Szumlanski
or we put the > battery cabinet to the side. Just use some common sense, if you are > having to lean awkwardly over or around something to get to the breakers, > its probably a violation. > > Ray Walters > Remote Solar > 303 505-8760 > > On 1/31/21 5:55 PM, Jason Szumlanski wro

Re: [RE-wrenches] Best LiPO Battery for Sol-Ark

2021-01-31 Thread Jason Szumlanski
> 707-884-1862 office > www.mdelectricsolar.com > www.facebook.com/mdelectricandsolar > > > On Jan 31, 2021, at 12:05 PM, Jerry Shafer > wrote: > >  > Blue planet has BMS integration with solar is a very stable product with > the best warranty > Jerry

Re: [RE-wrenches] Energy Storage and Working Spaces for Other Equipment

2021-01-31 Thread Jason Szumlanski
idsolar/ <http://members.sti.net/offgridsolar/> > e-mail offgridso...@sti.net > text 209 813 0060* > > On Sun, 31 Jan 2021 14:27:48 -0500, Jason Szumlanski < > ja...@floridasolardesigngroup.com> wrote: > > > I'm seeing a lot of pictures of LiPO battery systems an

Re: [RE-wrenches] Energy Storage and Working Spaces for Other Equipment

2021-01-31 Thread Jason Szumlanski
een an issue. The BPE's are in an > enclosed cabinet fire approved and protected from shock, putting batteries > further away will create space issues. Since all of these components are > required for the "system" to operate they are necessary. > Jerry > > On Sun, Jan 31

Re: [RE-wrenches] Energy Storage and Working Spaces for Other Equipment

2021-01-31 Thread Jason Szumlanski
op communication > between batts and with a Sol-Ark. It's a bit of a small increment for > large systems but may be worth it. > > I imagine they will offer an upgrade for eVaults or a new model soon with > full closed loop. Sol-Ark tech said they were still working with the

[RE-wrenches] Energy Storage and Working Spaces for Other Equipment

2021-01-31 Thread Jason Szumlanski
working, but does anyone else see this as problematic? Jason Szumlanski Florida Solar Design Group ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches

[RE-wrenches] Best LiPO Battery for Sol-Ark

2021-01-31 Thread Jason Szumlanski
of these ugly beasts. Jason Szumlanski Florida Solar Design Group ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenche

Re: [RE-wrenches] SMA Load Shedding Contactor 100A, 2P

2021-01-23 Thread Jason Szumlanski
with Battery Protection Mode providing essentially the same function, unless you are trying to shed a subset of loads. Jason On Fri, Jan 22, 2021, 3:24 PM wrote: > Use series resistors around the coil. > --- > > > > On 2021-01-21 13:59, Jason Szumlanski wrote: >

Re: [RE-wrenches] SMA Load Shedding Contactor 100A, 2P

2021-01-21 Thread Jason Szumlanski
> *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 Thu, 21 Jan 2021 16:05:44 -0500, Jason Szumlanski < > ja...

Re: [RE-wrenches] SMA Load Shedding Contactor 100A, 2P

2021-01-21 Thread Jason Szumlanski
yet to be built I would STRONGLY suggest that AC > coupling is NOT considered. IF it is them i would consider HV CC DC > coupling. > T > > On Jan 21, 2021, at 3:15 PM, Jason Szumlanski < > ja...@floridasolardesigngroup.com> wrote: > > Hi Mac, > > Yes, I considered usin

Re: [RE-wrenches] SMA Load Shedding Contactor 100A, 2P

2021-01-21 Thread Jason Szumlanski
plex, especially > if you are AC coupled, so you really have to think through your strategy. > > You can always use a pilot relay, with a coil rating that suits your > needs, and then feed the 100A contactor with that. Unfortunately, its just > one more piece to fail... > > On

Re: [RE-wrenches] SMA Load Shedding Contactor 100A, 2P

2021-01-21 Thread Jason Szumlanski
iltrack.io/trace/link/507c3cd242097f112c86a155d1e20d50857a422b?url=https%3A%2F%2Fwww.mdius.com%2Fmercury-relays%2Ftwo-pole-relays-contactors%2Ftwo-pole-100-amp=1613865=1f785f791758ce12> > > They do have a 100A 2P 48V coil relay. They seem to work perfectly. > > Good luck > > On Tue, Jan 1

[RE-wrenches] SMA Load Shedding Contactor 100A, 2P

2021-01-19 Thread Jason Szumlanski
Does anyone know where I can get a load shedding contactor described in SMA documentation for use with a multi-function relay in a Sunny Island? Thanks, Jason Szumlanski ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re

Re: [RE-wrenches] Direct sales- Sol-Ark

2020-11-24 Thread Jason Szumlanski
are not a perpetual offer to provide middle of the night help when the lights go dark. What usually happens is consumers hire Joe the Electrician to install things after they get my rates. Then they get in over their head and call me in desperation. Ugh. Jason Szumlanski On Tue, Nov 24, 2020 at 3:47 PM

Re: [RE-wrenches] Enphase intermittent fuse trippjng

2020-11-19 Thread Jason Szumlanski
Very interesting, Jay. The Bussman curve I just looked up is very similar. If that is the sole issue then replacing the disconnect alone with an HD version may not solve the problem. The better corrective action may be increasing the fuse rating and the wire size accordingly. However, since this

Re: [RE-wrenches] Sol-Ark Gen Exercise Cycle

2020-11-18 Thread Jason Szumlanski
logic and functionality so I put it all on the battery manufacturer to deal with it. That's not ideal by any stretch. Jason Szumlanski On Wed, Nov 18, 2020 at 5:03 PM Chris Sparadeo wrote: > Hi Dustin, > > I appreciate you checking in on this. I have to admit, after realizing the

Re: [RE-wrenches] Enphase intermittent breaker trippjng

2020-11-18 Thread Jason Szumlanski
gt; Hi Jason >> >> Any chance for some photos? >> >> Jay >> >> On Nov 18, 2020, at 12:18 PM, Jason Szumlanski < >> ja...@floridasolardesigngroup.com> wrote: >> >>  >> The plot thickens on the fuse blowing issue. Again, we tore the Enp

Re: [RE-wrenches] Enphase intermittent breaker trippjng

2020-11-18 Thread Jason Szumlanski
of fuse reducers, however. Jason Szumlanski Florida Solar Design Group On Sun, Aug 30, 2020 at 5:54 PM Jason Szumlanski < ja...@floridasolardesigngroup.com> wrote: > The tripping breaker occurred at random times, even at night. No > weather-related correlation. > > I have m

Re: [RE-wrenches] NEC 2020 - 705.12(B)(6)

2020-11-10 Thread Jason Szumlanski
> > > > On Sun, Nov 8, 2020, 12:30 PM Jay wrote: > > Hi Jason > > > > My question is if it’s 200a in from the main breaker and 100a from PV its > 300 amps on the buss correct? > > > > How is that ok with the 125% rule? > > > > Or is

Re: [RE-wrenches] NEC 2020 - 705.12(B)(6)

2020-11-09 Thread Jason Szumlanski
from the main breaker and 100a from PV its > 300 amps on the buss correct? > > How is that ok with the 125% rule? > > Or is this covered by some other rule as it's a feed through lug load > center? > > Jay > > > > On Nov 8, 2020, at 9:46 AM, Jason Szumlanski < > ja

Re: [RE-wrenches] NEC 2020 - 705.12(B)(6)

2020-11-08 Thread Jason Szumlanski
Here is the corrected drawing for the record. On Sun, Nov 8, 2020 at 12:51 PM Jason Szumlanski < ja...@floridasolardesigngroup.com> wrote: > Correction... The PV OCPD would need to be 80A or less or the total loads > would need to be 100A or less. It's the sum of the OCPD, no

Re: [RE-wrenches] NEC 2020 - 705.12(B)(6)

2020-11-08 Thread Jason Szumlanski
Correction... The PV OCPD would need to be 80A or less or the total loads would need to be 100A or less. It's the sum of the OCPD, not loads plus rated PV current. On Sun, Nov 8, 2020, 12:46 PM Jason Szumlanski < ja...@floridasolardesigngroup.com> wrote: > It's a 200A bus. > > 30

Re: [RE-wrenches] NEC 2020 - 705.12(B)(6)

2020-11-08 Thread Jason Szumlanski
covered by some other rule as it’s a feed through lug load > center? > > Jay > > > > On Nov 8, 2020, at 9:46 AM, Jason Szumlanski < > ja...@floridasolardesigngroup.com> wrote: > >  > Maybe this is a better example (attached). I don't see how this would be a &g

Re: [RE-wrenches] NEC 2020 - 705.12(B)(6)

2020-11-08 Thread Jason Szumlanski
of this if you have this scenario. Most of the time the subpanel is main lug only, but adding a main circuit breaker is usually an easy and cost-effective fix to make this interconnection type work. Jason Szumlanski On Wed, Oct 28, 2020 at 5:15 PM Jason Szumlanski < ja...@floridasolardesigngroup.com>

Re: [RE-wrenches] Bad Diodes in QCells?

2020-11-06 Thread Jason Szumlanski
or pursue warranty coverage. Other than that, no issues, but I have not installed a QCell in at least 2+ years. Jason Szumlanski On Thu, Nov 5, 2020 at 11:27 PM AE Solar wrote: > Wrenchers, > Wondering if anyone has had any experience with bad diodes in QCell > panels. Two of our

Re: [RE-wrenches] factory module damage, has anyone seen this?

2020-11-05 Thread Jason Szumlanski
I would never accept this from my distributor. It would be going back with a full refund or I'd take my business elsewhere. My distributor would never accept this from a manufacturer I would think. That's the whole benefit of having a middleman - they are paid to deal with these kinds of issue!

Re: [RE-wrenches] unfused disconnect before service disconnect

2020-10-29 Thread Jason Szumlanski
it a practice to only allow service rated enclosures for all supply side interconnections. I think it is the most conservative approach. Not having enough physical space is definitely frustrating. Jason Szumlanski On Thu, Oct 29, 2020 at 1:04 PM Dave Tedeyan wrote: > Lloyd, > I see what you are

Re: [RE-wrenches] NEC 2020 - 705.12(B)(6)

2020-10-28 Thread Jason Szumlanski
nal™ R031508-59 > National Electrical Code® CMP-4 Member > (520) 204-6639 > > Solar Energy International > http://www.solarenergy.org > > SEI Professional Services > http://www.seisolarpros.com > > > > On Wed, Oct 28, 2020 at 2:48 PM Jason Szumlanski < > ja

Re: [RE-wrenches] NEC 2020 - 705.12(B)(6)

2020-10-28 Thread Jason Szumlanski
gy.org > <https://mailtrack.io/trace/link/86b5841c6230a1049a6fd06f2085b233a0593f23?url=http%3A%2F%2Fwww.solarenergy.org=1613865=9fd3dbba7d87587d> > > SEI Professional Services > http://www.seisolarpros.com > <https://mailtrack.io/trace/link/9d97577f8c6b7e825f5e4c332a4cd891a94

Re: [RE-wrenches] NEC 2020 - 705.12(B)(6)

2020-10-28 Thread Jason Szumlanski
Jason Szumlanski < ja...@floridasolardesigngroup.com> wrote: > Of course the feeder conductors and bus bar could be subjected to a fault. > But we're not talking about faults here. Fault protection is the job of the > PV OCPD And primary supply OCPD to protect the downstream busba

Re: [RE-wrenches] Metal roof

2020-10-19 Thread Jason Szumlanski
: > That's a really interesting failure mode. I would have thought the > fasteners would have pulled out but I guess it makes sense that the metal > ripped. > > On Mon, Oct 19, 2020 at 3:19 PM Jason Szumlanski < > ja...@floridasolardesigngroup.com> wrote: > >> I

Re: [RE-wrenches] Metal roof

2020-10-19 Thread Jason Szumlanski
2-272-3092 > > NABCEP Certified PV Installation Professional > # 093006-34 > Do you envision a world powered by renewable energy? Be the change > <https://mailtrack.io/trace/link/e6cb1800f9273a5c6a30eed1f13b034e522f98d4?url=http%3A%2F%2Fsolarenergy.org%2Fdonate=1613865=5258e2c

Re: [RE-wrenches] Metal roof

2020-10-18 Thread Jason Szumlanski
I would add that S-5s are only as good as the roof. We saw a large system (not ours) that ripped the metal right off the roof during Hurricane Irma. It literally tore the meta. The panels, rails, and S-5s were still connected, sitting on the ground with chunks of metal roofing still attached to

Re: [RE-wrenches] Metal roof/self taping screws

2020-10-17 Thread Jason Szumlanski
There is a glaring lack of good options for 5V metal roofs in Florida. Sure, there are some butyl tape based attachments that penetrate the metal, but what happens when the truss lands below a V-crimp? The only real option is a deck mount solution or truss blocking (which is excruciating in a

Re: [RE-wrenches] Enphase noise interference to reporting; use ferrites

2020-10-16 Thread Jason Szumlanski
True, but this is MUCH less of a problem with IQ compared to M-Series. I just installed 212 IQ micros on a building with 268 existing M-Series. The M-series required ferrite rings and the IQ worked flawlessly without any filtering (although it took about 3 hours for all of the IQ micros to

Re: [RE-wrenches] Enphase noise interference to reporting; use ferrites

2020-10-15 Thread Jason Szumlanski
tallation). I agree with Enphase on this point - get it connected to broadband, at least temporarily to diagnose issues. I have gone as far as using an Ethernet wi-fi bridge connected to my mobile hotspot to diagnose issues. Jason Szumlanski Florida Solar Design Group On Thu, Oct 15, 2020 at 5:01

Re: [RE-wrenches] Enphase Raw Q Cable

2020-10-14 Thread Jason Szumlanski
thens-electric.com/ > <https://mailtrack.io/trace/link/d206e03aff92c8b1a60f27e697312684703b81d5?url=http%3A%2F%2Fathens-electric.com%2F=1613865=ce3b47e005ad6d53> > > > At 12:08 PM 10/6/2020, Jason Szumlanski wrote: > > Has anybody come up with a good wiring alternative to Raw Q Cable when >

Re: [RE-wrenches] Enphase Raw Q Cable

2020-10-13 Thread Jason Szumlanski
gt; > On Oct 10, 2020, at 7:29 AM, Jason Szumlanski < > ja...@floridasolardesigngroup.com> wrote: > >  > But is this compatible with Enphase field wireables? > > I know Enphase type DG cable is built on the TC-ER specs, but would it be > a listing violation to use TC-ER wi

Re: [RE-wrenches] Label Maker

2020-10-11 Thread Jason Szumlanski
flat rate envelope pricing that would be perfect for flat labels and placards. Regardless, they have always been very reliable for us. Jason Szumlanski Florida Solar Design Group On Sat, Oct 10, 2020 at 11:26 PM frenergy wrote: > We have a drawer full of labels and placards from PV-Lab

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