Re: [RE-wrenches] PWM Controllers in parallel
Sorry yes for clarification that he wants to parallel the INPUTS I am aware of paralleling the outputs we do that all the time. Sorry for the confusion but seems like the census now says NO on paralleling the 2 inputs from one array. Andrew Perkins Greenwired P: 707-923-2001 ext. 100 1150 #1 Evergreen Rd Redway, CA 95560 http://www.greenwired.com On Tue, 07 May 2024 11:58:37 -0700 Howie Michaelson via RE-wrenches wrote --- Yes, output not input. Thanks for clarifying that William... Howie Sun Catcher Solar Electric Systems Sales & Service 802-272-0004 On Tue, May 7, 2024 at 2:55 PM William Miller via RE-wrenches <mailto:re-wrenches@lists.re-wrenches.org> wrote: Andrew: I see no problem paralleling the Charge Controller outputs but I would not parallel the inputs. With parallel inputs, unless there is protection to prevent excessive current, there is a risk that one CC will take over and try to regulate the entire array. I suggest you divide up the panels to create one appropriately sized discrete array into each CC. You can parallel two strings of panels without OCPD. William Miller Solar 17395 Oak Road, Atascadero, CA 93422 805-438-5600 http://www.millersolar.com/ CA Lic. 773985 From: RE-wrenches [mailto:mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Andrew Perkins via RE-wrenches Sent: Tuesday, May 7, 2024 9:24 AM To: Re Wrenches Cc: Andrew Perkins Subject: [RE-wrenches] PWM Controllers in parallel Hello Wrenches, I have a client who has a large 2000 watt 12v array that he said used to be hooked into an internal solar charger on his old trace. Never seen a trace with one of those in it but he claims it could do 200a. This internal charger has now died and needs a replacement. He is refusing to rewire his panels into a new configuration and their aren't many options for him out there. I did get him a Coleman Aire 400a Charge controller but it is more of a load controller and wants to be able to properly absorb is batteries off the sun. He currently has a c60 running only part of the array and now he is asking about running another c60 in parallel. Not quite sure if this would work or not but my gut feeling says no and there will be problems. If anyone knows of any controllers that would fit that or if running those in parallel works your advice would be greatly appreciated. Andrew Perkins Greenwired P: 707-923-2001 ext. 100 1150 #1 Evergreen Rd Redway, CA 95560 http://www.greenwired.com ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: mailto: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: mailto: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] PWM Controllers in parallel
Hello Wrenches, I have a client who has a large 2000 watt 12v array that he said used to be hooked into an internal solar charger on his old trace. Never seen a trace with one of those in it but he claims it could do 200a. This internal charger has now died and needs a replacement. He is refusing to rewire his panels into a new configuration and their aren't many options for him out there. I did get him a Coleman Aire 400a Charge controller but it is more of a load controller and wants to be able to properly absorb is batteries off the sun. He currently has a c60 running only part of the array and now he is asking about running another c60 in parallel. Not quite sure if this would work or not but my gut feeling says no and there will be problems. If anyone knows of any controllers that would fit that or if running those in parallel works your advice would be greatly appreciated. Andrew Perkins Greenwired P: 707-923-2001 ext. 100 1150 #1 Evergreen Rd Redway, CA 95560 http://www.greenwired.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
Re: [RE-wrenches] Non-battery string inverter options?
I have been selling Goodwe, seems pretty decent so far, next best thing price wise of a good ol SMA. The only issue is they have a 5kw as their smallest but its pretty decently priced. They have a built in tigo transmitter too. Andrew Perkins Greenwired Store Manager/Service Tech P: 707-923-2001 ext. 100 1150 #1 Evergreen Rd Redway, CA 95560 http://www.greenwired.com http://qr.codes/qTa1Mh On Fri, 23 Feb 2024 04:09:30 -0800 Glenn Burt via RE-wrenches wrote --- Fronius. Solis -Glenn Sent from my 'smart'phone, so please excuse typos and spelling errors. -- Original message-- From: William Miller via RE-wrenches Date: Thu, Feb 22, 2024 6:56 PM To: RE-wrenches; Cc: William Miller; Subject:[RE-wrenches] Non-battery string inverter options? Friends: Now that RSS is required on almost every installation, I am having trouble finding a plain old, non-battery, non-MLPE string inverter. This is for a ground mount with the inverter mounted to the rack-- the only scenario I can imagine that does not require RSS. I don’t need or want battery capability, now or in the future. The project does not have shading issues and the inverter will be mounted on the array, so no version of MLPE is needed. My usual go-to would be the legacy SMA Sunny Boy series. I can’t dine one for sale and I am getting the impression these are no longer available. What might you recommend for this new installation? This brings up the question: Of all the Sunny Boy installations I have out there, the next time one fails, what am I going to replace it with? The new Sunny Boy Smarty-Pants series is not yet shipping, it is very expensive and to replace a grid-connected inverter I don’t need battery capabilities. I can’t use Solar Edge because I won’t want to unwire a complete array and add optimizers. I am not that taken with Sol-Ark, not only because it includes the word Arc in its name. I don’t need the battery capabilities, AC load center or any of the other complexities. Any advice is appreciated. William Miller Solar 17395 Oak Road, Atascadero, CA 93422 tel:805-438-5600 http://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
[RE-wrenches] Looking for central CA off-grid installer
Looking for someone to pass a client off to to install some PLP ground and equipment mounts for 12 cell tower jobs. All located in Central CA. Its unfortunatly out of my territory. Let me know off thread if interested. Andrew Perkins Greenwired Store Manager/Service Tech P: 707-923-2001 ext. 100 1150 #1 Evergreen Rd Redway, CA 95560 http://www.greenwired.com http://qr.codes/qTa1Mh___ 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 software platforms
We moved to Zoho CRM for a management of service jobs and installs. We also have Zoho Inventory to manage well inventory. They got a whole hosts of different apps that all link together but it does take some time to get everything setup. Andrew Perkins Greenwired Store Manager/Service Tech P: 707-923-2001 ext. 100 1150 #1 Evergreen Rd Redway, CA 95560 http://www.greenwired.com http://qr.codes/qTa1Mh On Sun, 19 Nov 2023 12:29:22 -0800 Lou Russo via RE-wrenches wrote --- Aloha All, We are exploring software platforms to manage service calls (HouseCall Pro, Service Titan, etc...) The feature set on these service call related platforms seem to be great for that component of our business but we also need to manage the full installation side of the business and every growing paperwork flow to make sure things don't slip through the cracks. Ideally these 2 needs would be met by one platform and allow us to move on from the Google Workspace kludge, which has been great up until now. I don't know if it is even possible! I am wondering if you all are currently using any software platforms to meet these needs (separately or together) and what your experience has been. Thanks! Aloha, Lou Russo Owner mailto:l...@spreesolarsystems.com 808 345 6762 Spree Solar Systems LLC CT-34322 ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: mailto: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: [RE-wrenches] MAGNUM INVERTERS and breaker issues
Hey Jeremy, I have run into this issue before and the one we found out to work the best is a Hubbell Part# GFRST20W. Dont know if things have changed since last but give it a try. Good luck! Andrew Perkins Greenwired Store Manager/Service Tech P: 707-923-2001 ext. 100 1150 #1 Evergreen Rd Redway, CA 95560 http://www.greenwired.com http://qr.codes/qTa1Mh On Sat, 23 Sep 2023 16:28:40 -0700 Jeremy Rodriguez via RE-wrenches wrote --- Wrenches Has anyone confirmed which AFCI, combo GF/ CAFI , or GF only circuit breaker brand names work with the PAE series inverter? The leviton combos seems to freak out! Regards , Jeremy Rodriguez Solar Installation / Design All Solar, Inc. 1453 M St. Penrose Colorado 81240 Sent by Jeremy's iPhone. Sorry for typos and shorthand. ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: mailto: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] Schneider XW+ Repair
Does anyone know anyone working on Schneider inverters? I got a customer who had a ac relay go out on a 5548 XW+ its part of a 3phase unit so I kinda need it. I used to use ASE Supply in OR but they said they really dont work any them anymore mainly in part of Schneider not supplying parts anymore. If it cant be repaired is a 6848 pro going to be able to work, my gut says no? Andrew Perkins Greenwired Store Manager/Service Tech P: 707-923-2001 ext. 100 1150 #1 Evergreen Rd Redway, CA 95560 http://www.greenwired.com http://qr.codes/qTa1Mh___ 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 recommendation
Issues with Pytes or EG4? I had problems with EG4 and it took over a month for tech support to get back to me. Andrew Perkins Greenwired Store Manager/Service Tech P: 707-923-2001 ext. 100 1150 #1 Evergreen Rd Redway, CA 95560 http://www.greenwired.com http://qr.codes/qTa1Mh On Fri, 14 Jul 2023 12:28:45 -0700 Darryl Thayer via RE-wrenches wrote --- I have one of four one alarm locked no tech support On Fri, Jul 14, 2023, 2:11 PM Darryl Thayer <mailto:darylsol...@gmail.com> wrote: Yes the pytes are good price, I had problems and no tech support On Fri, Jul 14, 2023, 1:51 PM Andrew Perkins via RE-wrenches <mailto:re-wrenches@lists.re-wrenches.org> wrote: Jay we have been doing a few of these Pytes they seem like a upgrade from the EG4s, better manuals and integration guides and I can get them from NAZ instead of SignatureSolar. Only real issue so far is they have a special terminal on them so they come with these little jumpers. https://www.solar-electric.com/pytes-e-box-48100r-5-12kwh-lithium-iron-phosphate-battery.html Andrew Perkins Greenwired Store Manager/Service Tech P: 707-923-2001 ext. 100 1150 #1 Evergreen Rd Redway, CA 95560 http://www.greenwired.com http://qr.codes/qTa1Mh On Thu, 13 Jul 2023 15:19:58 -0700 Jay via RE-wrenches <mailto:re-wrenches@lists.re-wrenches.org> wrote --- Hi all I’m Looking for recommendations for a lithium battery. 48v. 150-200 kWh. System is probably going to be open comm, as the system has outback equipment. That could change but probably not. Remote monitoring is required even though it is a site with people 24/7. So far fortress and home grid. Have been recommended to look at. Blue planet is just too expensive. And PS. Fortress says that you cannot add batteries after 1 year. This goes against everything I thought I understood about lithium. Any comments about why they say that? Do others say rhat? Thanks in advance Jay ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: mailto: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: mailto: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: mailto: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: [RE-wrenches] Lithium battery recommendation
Jay we have been doing a few of these Pytes they seem like a upgrade from the EG4s, better manuals and integration guides and I can get them from NAZ instead of SignatureSolar. Only real issue so far is they have a special terminal on them so they come with these little jumpers. https://www.solar-electric.com/pytes-e-box-48100r-5-12kwh-lithium-iron-phosphate-battery.html Andrew Perkins Greenwired Store Manager/Service Tech P: 707-923-2001 ext. 100 1150 #1 Evergreen Rd Redway, CA 95560 http://www.greenwired.com http://qr.codes/qTa1Mh On Thu, 13 Jul 2023 15:19:58 -0700 Jay via RE-wrenches wrote --- Hi all I’m Looking for recommendations for a lithium battery. 48v. 150-200 kWh. System is probably going to be open comm, as the system has outback equipment. That could change but probably not. Remote monitoring is required even though it is a site with people 24/7. So far fortress and home grid. Have been recommended to look at. Blue planet is just too expensive. And PS. Fortress says that you cannot add batteries after 1 year. This goes against everything I thought I understood about lithium. Any comments about why they say that? Do others say rhat? Thanks in advance Jay ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: mailto: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: [RE-wrenches] Magnum issues?
Hey Ron, That used to be the case for me here in California but as of recently I have been able to get MS4448PAE inverters from Zonna Energy over in PA. I don't know if they have boards these days but I would give them a try. Andrew Perkins Greenwired Store Manager/Service Tech P: 707-923-2001 ext. 100 1150 #1 Evergreen Rd Redway, CA 95560 http://www.greenwired.com http://qr.codes/qTa1Mh On Mon, 19 Jun 2023 13:01:11 -0700 Ron Young via RE-wrenches wrote --- I’m in Canada, on the west coast, and while the supply chain issues over the last 2 years with Magnum inverters were severe they seem to have eased over the last few months. However I have just had a local service depot tell me that repair boards are unavailable and to get back to them in 4 - 6 months!! Just asking my U.S. colleagues, have you had the same experience in the last few months or is this just a local issue? Ron Young earthRight Products - http://Solareagle.com Alternative Energy Solutions ~ Renewable Energy Products ___ 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: [RE-wrenches] Shurflo 9300 submersible alternative?
I ran into the same problem and got sick of repairing 9300s only for them to
fail right afterwords. So we switched over to the sunpump SDS-T 128 it's metal,
quality parts and cheaper at like $750. They can also be rebuilt. I primarily
sell these. Then China came along and now you can get a 9300 knockoff on Amazon
called an ECO-WORTHY for a grand total of $90 bucks! It has the near same specs
as a 9300, probably not able to repair it or maybe, I do not know. Hope that
helps!Andrew PerkinsGreenwiredStore Manager/Service TechP: 707-923-2001 ext.
1001150 #1 Evergreen RdRedway, CA 95560www.greenwired.com On Mon, 06 Jun
2022 07:41:45 -0700 re-wrenches@lists.re-wrenches.org wrote
Wrenches,
In years past I used to have more than a dozen clients with Shurflo
9325 ('9300') 12/24V DC submersible well pumps, and kept the parts
to rebuild them. It's been at least ten years since I was asked to
repair or replace one. In that time the price has risen enough that
the retail price is now around $1,000. This morning my neighbor
called to tell me that hers had failed and she wants a replacement.
Please reply if you have found a less expensive replacement that
will fit the same application: 24V array-direct; under 200' TDH with
open discharge; around 200 watts of 40-year-old modules. It would
pretty much have to be a Chinese copy of a diaphragm pump like the
Shurflo.
I'm not looking for a better pump solution; I know that there
several good ones. My neighbor lives alone on a fixed income, on the
homestead she built in the 1970s, and this approach has served her
for decades. I'm just looking for a cheaper pump that will replace
the Shurflo and has a decent track record for reliability.
Thanks, Allan
--
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*.x_-1339455445MsoPapDefault { margin-bottom: 8pt; line-height: 107% }Allan
Sindelar
al...@sindelarsolar.com
New
Mexico EE98J Journeyman Electrician
Retired Founder, Positive Energy, Inc.
Retired Founder, Sindelar Solar
505
780-2738 cell
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[RE-wrenches] PV+EV charging
Wrenches, This year's NABCEP conference will feature a panel session on PV+EV charging, including topics such as the state of the market, relevant rate tariffs/regulations/incentives, current equipment capabilities, vehicle-to-grid considerations, key players in the space (e.g. Beam, Enphase+ClipperCreek, 365 Pronto, ChargeNet...), and economic optimization. Is anyone out there installing co-located and integrated PV+EV charging right now? If so what equipment are you using and what challenges and benefits are you seeing? Feel free to contact me off-list. Regards, Andrew Truitt www.remotesolar.com d: 202.486.7507 NABCEP Certified PV Installation Professional ID: 032407-66 Colorado Journeyman Electrician License No.: 600132 "Don't get me wrong: I love nuclear energy! It's just that I prefer fusion to fission. And it just so happens that there's an enormous fusion reactor safely banked a few million miles from us. It delivers more than we could ever use in just about 8 minutes. And it's wireless!" ~William McDonough ___ 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
Hey Ron, It's not just you it's hard for us down here in the states. I had an RMA that took months to get a new inverter only to have FedEx abuse it so bad that I needed another RMA for an inverter I can't get so I'm looking at another month. They are starting to show back up though. Andrew PerkinsGreenwired On Thu, 05 Aug 2021 17:07:41 -0700 solarea...@solareagle.com wrote Magnum has been my go to inverter for off-grid systems for years, always found them to be solid and reliable. This year (at least in Canada) we are waiting literally months to fill orders on 4024’s, 4448 and other components. I know that in general there are supply line issues on everything due to Covid fallout of various kinds. But are US dealers/installers having the same problem with Magnum supply or is this a Canadian issue?Any comments on the new Midnite DIY inverters?Ron YoungearthRight Products - Solareagle.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
[RE-wrenches] Conext 80 600v MPPT fan replacement
Anyone have any experience changing out the fans on a Conext 80 600v MPPT charge controller? I have a supplier where I can get the internal fans for the Conext XW inverters but I dont know if they are the same or not. Thanks, Andrew Perkins Greenwired P: 707-923-2001 ext. 100 1150 #1 Evergreen Rd Redway, CA 95560 http://www.greenwired.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
[RE-wrenches] Flexible panel install on airstream
Hey Wrenches, Here to get some advice on mounting options for some Renogy flexible panels on an airstream. I usually say no to any rvs but they are friends of the owner so it's in my lap now. The panels have 6 eyelets on them for mounting so I was thinking of using some sikaflex adhesive for the pack of the panels and then some blind rivets for the eyelets with small piece of butyl between the the bottom of the eyelet and the roof of the airstream to seal the holes. Anyone done these before or have any advise?___ 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-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] Programmable battery chargers
Yeah we used to be able to open up the IOTAs and do that now they are all riveted shut! I was using Powermax for a long while but they kept failing on us so I went back to iota. I am selling those Rolls S6 series L16s and they need to be charged at a higher voltage but none of the standard presets will go that high. Maybe ill give them another shot. Thanks for the reminder. Andrew Perkins Greenwired P: 707-923-2001 ext. 100 1150 #1 Evergreen Rd Redway, CA 95560 http://www.greenwired.com On Tue, 05 Jan 2021 22:38:14 + wrote Andrew, We open the Iota DLS series and adjust the output voltage for our needs. Have done that for many years. The dual voltage jack can then be used for 0.6 Volts switching. We have also used relays and external voltage controllers to automate the DLS voltage switching when the IQ module is insufficient. Also look at the Powermax PM series. They have a voltage adjustment but don’t have the dual voltage that DLS offers. Larry Crutcher Starlight Solar Power Systems On Jan 5, 2021, at 12:52 PM, Andrew Perkins <mailto:and...@greenwired.com> wrote: Hello Wrenches, I have been looking for some programmable battery chargers probably around 50 amps that I can set a specific voltage, I have been using IOTA in the past but its only a fixed voltage and some of the batteries I have been selling require higher charge setpoints. I am mainly using these on 12v systems any thing higher I have just been using inverter/chargers like Magnum or Schneider. Just seeing what other people have been using out there. Andrew Perkins Greenwired P: 707-923-2001 ext. 100 1150 #1 Evergreen Rd Redway, CA 95560 http://www.greenwired.com/ <1596050015677007_1701277005.png> ___ List sponsored by Redwood Alliance List Address: mailto: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 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 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] Programmable battery chargers
Hello Wrenches, I have been looking for some programmable battery chargers probably around 50 amps that I can set a specific voltage, I have been using IOTA in the past but its only a fixed voltage and some of the batteries I have been selling require higher charge setpoints. I am mainly using these on 12v systems any thing higher I have just been using inverter/chargers like Magnum or Schneider. Just seeing what other people have been using out there. Andrew Perkins Greenwired P: 707-923-2001 ext. 100 1150 #1 Evergreen Rd Redway, CA 95560 http://www.greenwired.com___ 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-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] Design Software?
Hi Kelly! I'm a fan of Helioscope, particularly for commercial applications. For projects with multiple roof pitches and/or partial shading, Aurora works pretty well. Regards, Andrew Truitt www.dr.ventures d: 202.486.7507 NABCEP Certified PV Installation Professional ID: 032407-66 Colorado Journeyman Electrician License No.: 600132 <https://www.linkedin.com/in/andrewtruitt/> [image: Logo] The content of this email is confidential and intended for the recipient specified in this message only. It is strictly forbidden to share any part of this message with any third party, without written consent of the sender. If you received this message by mistake, please reply to this message and follow with its deletion, so that we can ensure such a mistake does not occur in the future. On Mon, Oct 19, 2020 at 10:33 AM Kelly Larson wrote: > Hi y'all, > > Since I haven't been doing layout/design recently, I wonder what software > I can recommend to a client. He is a newbie doing mostly commercial > systems - some roof and some ground mount. The software needs to layout > strings for string inverters, calc voltage drop, conductor sizes, etc, and > show distances. > > Suggestions? > > Thank you in advance, > Kelly > > ~~~ > Kelly Larson > 707-223-3209 > Box 18094 > Reno, NV 89511 > Electrical Engineer > NABCEP Certified PV Installation Professional™ > NABCEP Certified PV Installer Specialist™ > NABCEP Certified PV Commissioning & Maintenance Specialist™ > IREC Certified Master Trainer™/ PV > CA Electrical Contractor# 868189 > Solar Energy International Instructor > SolarKelly.com > ___ > 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-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 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] Conext inverter non warranty repair
Is there there anyone one out there working on Conext XW 6848s? I have a unit out of warranty that has a fried communication unit I need to get repaired. Andrew Perkins Greenwired P: 707-923-2001 ext. 100 1150 #1 Evergreen Rd Redway, CA 95560 http://www.greenwired.com___ 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-wrenches-re-wrenches.org List-Archive: 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] Floatovoltaics
We've spoken with Isofloating <https://www.isifloating.com/en/> a few times and have been pleased with their service and technical understanding of real-world challenges. Their US experience is not extensive, but the product seems solid and pricing is competitive. C seems to be a good option as well. Regards, Andrew Truitt www.dr.ventures d: 202.486.7507 NABCEP Certified PV Installation Professional ID: 032407-66 Colorado Journeyman Electrician License No.: 600132 <https://www.linkedin.com/in/andrewtruitt/> [image: Logo] The content of this email is confidential and intended for the recipient specified in this message only. It is strictly forbidden to share any part of this message with any third party, without written consent of the sender. If you received this message by mistake, please reply to this message and follow with its deletion, so that we can ensure such a mistake does not occur in the future. On Mon, Jun 15, 2020 at 8:31 PM Jim Duncan wrote: > At Ciel & Terre, we have been proudly *developing large-scale floating PV > plants* for commercial, government and non-profit institutions worldwide > *since > 2011*. > https://www.ciel-et-terre.net/ > > > > On 6/15/2020 3:04 PM, Dave Angelini Offgrid Solar wrote: > > Hi Corey, > > Yep I have seen them up in Napa on a small lake. It seems very risky in > the Caribbean. The only thing I want on a roof is gutters for rainwater. > You can tell I am biased. Maybe someone else has better info. > > > > *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 Mon, 15 Jun 2020 13:15:42 -0500, Corey Shalanski > wrote: > > Hi Dave, > > I was actually referring to a growing trend in the PV industry > (particularly in Asia) to attach PV arrays - and also inverters in some > cases - to floating pontoons and then install them on bodies of water. The > systems are often referred to as floating PV (FPV) or "floatovoltaics". > Here's an NREL link which provides further information about the concept: > https://www.nrel.gov/news/press/2018/nrel-details-great-potential-for-floating-pv-systems.html > > -- > Corey Shalanski > Jah Light Solar > Portland, Jamaica > > > On Sun, 14 Jun 2020 07:30:14 -0700, Dave Angelini wrote: > >> >> I know both Schneider mppt's can be negative, positive, or ungrounded. >> Others must do this also. Is that what you are asking? >> >> They work as >> expected as far as I have seen. > > > ___ > 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-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette:www.re-wrenches.org/etiquette.htm > > Check out or update participant bios:www.members.re-wrenches.org > > > -- > Jim Duncan > Solar Acres Farm > 817.917.0527solarguy2...@gmail.com > > ___ > 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-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > > ___ 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-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Programs for one line DWGs.
Hey Dana, I have been using AutoCAD Lite and it seems to do a very good job and I have been using it for single lines and permit packages for a couple years now. I have a college who uses LibreOffice Draw cause its free but he was doing a pretty big commercial project and it kept crashing. Andrew Perkins Greenwired P: 707-923-2001 ext. 100 1150 #1 Evergreen Rd Redway, CA 95560 www.greenwired.com Description: signature From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Dana Orzel Sent: Monday, May 18, 2020 3:30 PM To: 'RE-wrenches' Subject: [RE-wrenches] Programs for one line DWGs. Hey all you wise guys! I looked back in the archives & found a few recommendations on drawing programs. I had Design CAD-3D for 15 years and it was simple [2D & 3D] & worked fine. I had to upgrade recently as this program is now out of date and am currently overwhelmed with too many overly complex drawing programs. I need to draw boxes, lines, text, arrows, a few curves you know the tasks. I don't need to do 3D rendering of parts etc. I also need a program that has decent tutorials. What are you all using that is pretty basic for 2D drawings on a very up-to-date PC? Suffering with too many options. Thanks in advance. Dana Orzel Great Solar Works, Inc. C - 208.721.7003 d...@solarwork.com Idaho Contractor - # 028765 Idaho PV # 028374 NABCEP # 051112-136 www.solarwork.com <http://www.solarwork.com/> "Responsible Technologies for Responsible People since 1988" P Please consider the environment before printing this email. ___ 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-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] 250KW-500KW Off-grid Inverters?
Jeff, This has a little info on many of the global players <https://germanyenglishnews.com/german-news/2020/04/08/energy-storage-battery-inverter-market-size-share-trends-sales-forecast-demands-volume/>, including some that have products in the capacity range you refer to. I'm not sure how much the full report costs. Sunpower also has a product. <https://us.sunpower.com/commercial-solar/products/solar-battery-storage> For commercial-scale LFP battery systems you might want to look at Powin Energy <http://www.powinenergy.com/> out of Portland, OR. They're expanding from utility-only into the commercial realm and offer competitive pricing, and have experience with various mid-size hybrid inverters. <https://us.sunpower.com/commercial-solar/products/solar-battery-storage> <https://us.sunpower.com/commercial-solar/products/solar-battery-storage> Regards, Andrew Truitt www.dr.ventures d: 202.486.7507 NABCEP Certified PV Installation Professional ID: 032407-66 Colorado Journeyman Electrician License No.: 600132 <https://www.linkedin.com/in/andrewtruitt/> [image: Logo] The content of this email is confidential and intended for the recipient specified in this message only. It is strictly forbidden to share any part of this message with any third party, without written consent of the sender. If you received this message by mistake, please reply to this message and follow with its deletion, so that we can ensure such a mistake does not occur in the future. On Mon, Apr 13, 2020 at 5:04 PM David Katz wrote: > If you are working in Africa, Asia, or Europe the AC output is 380-400 > 3-phase or 230 1-phase without the 120V center tap. > If you are working on a country that used to be a puppet government of the > USA it will be 120, 240 480 etc. > David Katz > > On Mon, Apr 13, 2020 at 1:37 PM Kirk Herander wrote: > >> Delta inverters with Blue ion and/or Dellta's own battery pack. >> >> On 4/13/2020 4:18:15 PM, Jeff Clearwater >> wrote: >> Hey There Esteemed Wrenches, >> >> Okay so hospitals all over the world are clambering for battery-inverter >> systems and now with potential international funding not available before. >> Goal is to replace diesel and higher reliability - we'll add solar later as >> we go. >> >> But most medical clinics and small hospitals in the developing world are >> needing 100KW-500 KW systems. >> >> I'm aware of the Dynapower Inverters out of S. Burlington Vermont- they >> offer a 500KW, a 250 KW and a 125 KW at 800-1500 VDC and 480 and 600 VAC 3 >> ph. >> >> Anyone have direct experience with them? >> >> What other alternatives should we consider? >> >> Thanks! >> >> Jeff >> >> -- >> ~~~ >> Jeff Clearwater >> Village Power Design >> linkedin <https://www.linkedin.com/in/jeff-clearwater-0622a312/> >> www.villagepowerdesign.com >> cell - 413-559-9763 >> ~~~ >> >> ___ >> 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-wrenches-re-wrenches.org >> >> List-Archive: >> http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html >> >> List rules & etiquette: >> www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> www.members.re-wrenches.org >> >> ___ > 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-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > > ___ 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-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
[RE-wrenches] Single Axis trackers
Has anyone had any experience with single axis trackers? I am looking to do a job that's about 100kw and trying to see if it would be feasible to look into this as an option or not. What companies have you guys used and what has your experience been with them? Andrew Perkins Greenwired P: 707-923-2001 ext. 100 1150 #1 Evergreen Rd Redway, CA 95560 www.greenwired.com Description: signature ___ 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-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Solectria TL woes
I'm with you guys and we actually had a bad transformer bushing at this site initially which was causing exactly that issue. The site still runs high (498-508Vac nominal) but is well below the 528V default upper limit of the TLs, and the shut-offs are not correlated with higher AC voltages. Also the 50TLs, which have the same voltage input window and are connected at the same panel, never have an issue. The fact that Solectria is willing to RMA the units without much more information than what I've given here tells me that it may be a systemic issue with this run of inverters, right? Jerry, the inverters are loaded at a 1.18 ratio so minor clipping happens somewhat regularly. DC voltage never exceeds the 850V upper MPPT limit. Regards, Andrew Truitt www.dr.ventures d: 202.486.7507 NABCEP Certified PV Installation Professional ID: 032407-66 Colorado Journeyman Electrician License No.: 600132 <https://www.linkedin.com/in/andrewtruitt/> [image: Logo] The content of this email is confidential and intended for the recipient specified in this message only. It is strictly forbidden to share any part of this message with any third party, without written consent of the sender. If you received this message by mistake, please reply to this message and follow with its deletion, so that we can ensure such a mistake does not occur in the future. On Tue, Feb 25, 2020 at 2:02 PM Jason Szumlanski < ja...@floridasolardesigngroup.com> wrote: > It sure looks like it could be an AC voltage issue. Around here the > utility voltage is often high in the morning and then gets dragged down > when loads in the neighborhood spike from air conditioning (yes, even in > winter here in Florida). We see drop-outs (with other brand inverters) in > the mid-morning as a result. Usually the utilities here will resolve it if > you demonstrate the voltage is high, even if it's not out of their > acceptable range. > > Jason Szumlanski > > > > On Tue, Feb 25, 2020 at 3:16 PM Jerry Shafer > wrote: > >> Andrew >> What is the AC Voltage when this occurs, to much VAC will shut down the >> inverter. It also looks like you are clipping all the inverters during the >> mid day, is due to low temps or does this always happen. What is the DC >> MPPT voltage, is it at the upper limit. >> Jerry >> NABCEP PV inspector >> >> On Tue, Feb 25, 2020, 12:02 PM Andrew Truitt wrote: >> >>> >>> Wrenches, >>> >>> I have a couple of Solectria 36TLs at a small community solar site in CO >>> that shut themselves down occasionally for what appears to be no reason. >>> >>> [image: image.png] >>> >>> Voltages and frequency are normal, firmware is updated, IR scan shows >>> nothing irregular, and the other 2 inverters at the site (50TLs) are fine. >>> It can happen under sunny or cloudy conditions. Solectria will RMA the >>> inverters but before I go out and replace I'm curious if anyone has seen >>> this behavior? >>> >>> >>> Regards, >>> >>> Andrew Truitt >>> >>> www.dr.ventures >>> d: 202.486.7507 >>> >>> NABCEP Certified PV Installation Professional ID: 032407-66 >>> Colorado Journeyman Electrician License No.: 600132 >>> >>> >>> <https://mailtrack.io/trace/link/fa22d5123ede6619559172cc0b417b15f93fbb6b?url=https%3A%2F%2Fwww.linkedin.com%2Fin%2Fandrewtruitt%2F=1613865=0e80aee3c0f6304e> >>> >>> [image: Logo] >>> >>> The content of this email is confidential and intended for the recipient >>> specified in this message only. It is strictly forbidden to share any part >>> of this message with any third party, without written consent of the >>> sender. If you received this message by mistake, please reply to this >>> message and follow with its deletion, so that we can ensure such a mistake >>> does not occur in the future. >>> ___ >>> 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-wrenches-re-wrenches.org >>> <https://mailtrack.io/trace/link/fc0d195abf7ef34b4caa0b5d7630f69a09d07827?url=http%3A%2F%2Flists.re-wrenches.org%2Foptions.cgi%2Fre-wrenches-re-wrenches.org=1613865=009f6d52da4a96c5> >>> >>> List-Archive: >>> http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html >>> <https://mailtrack.io/trace/link/023a5edc45fcb68e1b958fa9895c682bef33f581?ur
[RE-wrenches] Solectria TL woes
Wrenches, I have a couple of Solectria 36TLs at a small community solar site in CO that shut themselves down occasionally for what appears to be no reason. [image: image.png] Voltages and frequency are normal, firmware is updated, IR scan shows nothing irregular, and the other 2 inverters at the site (50TLs) are fine. It can happen under sunny or cloudy conditions. Solectria will RMA the inverters but before I go out and replace I'm curious if anyone has seen this behavior? Regards, Andrew Truitt www.dr.ventures d: 202.486.7507 NABCEP Certified PV Installation Professional ID: 032407-66 Colorado Journeyman Electrician License No.: 600132 <https://www.linkedin.com/in/andrewtruitt/> [image: Logo] The content of this email is confidential and intended for the recipient specified in this message only. It is strictly forbidden to share any part of this message with any third party, without written consent of the sender. If you received this message by mistake, please reply to this message and follow with its deletion, so that we can ensure such a mistake does not occur in the future. ___ 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-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Aftermarket monitoring
Peter - Here's a comparison chart I put together as we explore our 3rd party monitoring options in the wake of the Locus acquisition by Also Energy, with the caveat that the info is collected from various sources over time and may not be 100% accurate: *GPM* *Nor-Cal / Power Factors* *QOS* *Locus / Also * *Can we use inverter-native meters* Sometimes Sometimes (direct to PF) Yes No *If yes, can firmware upgrades / power cycling be pushed from the platform* Sometimes Sometimes Sometimes n/a *Can we build our own meters* Yes Yes Yes Yes *Vendor offers a pre-configured meter* Yes Yes Yes Yes *SCADA capability* Yes Yes Minimal Yes *Mobile app * Yes ? Yes 2: CMMS (available off-line), Monitoring No locus / yes Also *Predictive analytics that account for weather* Yes Yes Yes Yes *PV O services* No Partnerships No No *Weather station options* Multiple Lufft, Huxaflux (pyranometer), IMT (temp) Obvious, others RT1 / INT reference cell with temp *Storage capabilities* Yes In development Yes Some *Pricing structure* Pay for hardware, software, and data, all w/ a significant margin built in $10-15k minimum: RG meter (accuenergy), datalogger (Obvious Aquasuite, Windows (Power Factors), cell modem (Sierra Wireless), owner buys wireless plan $/MW/year Pay for hardware, software, and data, all w/ a significant margin built in *Notes* Optimized for utility and large-commercial Open source Swinerton partner Partnering with eGuage for a lower-cost (potentially) meter option https://store.egauge.net/ - Cost $250/meter to set up / $100/year for platform Optimized for utility and large-commercial Obvious relationship eGaurd - amalgamate data Good ticketing / calendaring All eGuage meters are RG, but only some CTs; Cellular is AT or T-mobile; Pricing structure should work for small commercial $400/site to set up all the alarms / models in PowerTrack I'm curious what others are doing these days as Also continues to consolidate monitoring platforms. It sounds like an interesting project Peter, feel free to give me a call if the customer might be interested in financing or 3rd party ownership for the new ESS. Regards, Andrew Truitt www.dr.ventures d: 202.486.7507 NABCEP Certified PV Installation Professional ID: 032407-66 Colorado Journeyman Electrician License No.: 600132 [image: Logo] The content of this email is confidential and intended for the recipient specified in message only. It is strictly forbidden to share any part of this message with any third party, without a written consent of the sender. If you received this message by mistake, please reply to this message and follow with its deletion, so that we can ensure such a mistake does not occur in the future. On Mon, Dec 9, 2019 at 8:28 AM wrote: > Good morning fellow wrenchers. Looking for recommendations on an > aftermarket monitoring system. Commercial site, 208 and customer is putting > back 3 times as much as they are using. They want to know when they are > putting back, when they are buying and how much so we can design the right > battery system to power shave those times. Thanks in advance. > > > > Peter Giroux > > American Solar & Alternative Energy Solutions > > Roswell Ga > ___ > 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-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > > ___ 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-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
[RE-wrenches] Tripping breaker
Wrenches - I've got an Eaton HFD3090 90A breaker protecting a Solectria 50TL that's tripped twice in the past 5 days, after having no issues during the first 8 months of system production (including throughout the summer). Monitoring (inverter-direct and RG CTs) shows nothing unusual (all 3 phases <57A) and nothing to indicate a brief edge-of-cloud effect. I'm heading out today to IR the AC connections and expect to see a some color, but being as the site is somewhat remote wanted to check with the group on any other recommendations before leaving. I don't have a logging current meter but might pick up a spare breaker to swap in if all connections check out. Any other suggestions? Anyone ever had nuisance tripping issues with Eaton Series C breakers? Regards, Andrew Truitt www.dr.ventures d: 202.486.7507 NABCEP Certified PV Installation Professional ID: 032407-66 Colorado Journeyman Electrician License No.: 600132 [image: Logo] The content of this email is confidential and intended for the recipient specified in message only. It is strictly forbidden to share any part of this message with any third party, without a written consent of the sender. If you received this message by mistake, please reply to this message and follow with its deletion, so that we can ensure such a mistake does not occur in the future. ___ 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-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
[RE-wrenches] ISO low efficiency modules
Wrenches - We're looking for 100-300 kW of low efficiency, low cost modules. Got a few hundred old 250s taking up space in your warehouse? I'm your guy! So long at the warranty is intact and they are ITC eligible, we are interested. Please contact me off-list. Regards, Andrew Truitt www.dr.ventures d: 202.486.7507 NABCEP Certified PV Installation Professional ID: 032407-66 Colorado Journeyman Electrician License No.: 600132 [image: Logo] The content of this email is confidential and intended for the recipient specified in message only. It is strictly forbidden to share any part of this message with any third party, without a written consent of the sender. If you received this message by mistake, please reply to this message and follow with its deletion, so that we can ensure such a mistake does not occur in the future. ___ 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-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
[RE-wrenches] 30-50kW 120/208V solar+storage recommendations?
Anyone have any recommendations for Rule 21 compliant 30-50kW 120/208V solar+storage options, preferably with backup capability (i.e. not Storedge). Seems like many of the traditional residential players have options these days, but curious how they perform in the real world. Regards, Andrew Truitt www.dr.ventures d: 202.486.7507 NABCEP Certified PV Installation Professional ID: 032407-66 Colorado Journeyman Electrician License No.: 600132 [image: Logo] The content of this email is confidential and intended for the recipient specified in message only. It is strictly forbidden to share any part of this message with any third party, without a written consent of the sender. If you received this message by mistake, please reply to this message and follow with its deletion, so that we can ensure such a mistake does not occur in the future. ___ 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-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Large off-grid inverter/storage
Yeah these are for industrial cannabis operations that are starting to spring up due to legalization..36” industrial greenhouse fans, pre vegetation lighting, supplemental light and dehumidifiers… why they still want to do it in the middle of the boonies with now power is beyond me.. Andrew Perkins Greenwired P: 707-923-2001 ext. 100 1150 #1 Evergreen Rd Redway, CA 95560 www.greenwired.com Description: signature From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of palumbo1...@gmail.com Sent: Thursday, September 05, 2019 7:48 PM To: RE-wrenches Subject: Re: [RE-wrenches] Large off-grid inverter/storage Is “25 Kw per hour” a real value? For us old school people there is kW and they is kWh (kilowatt hours). I’m guessing that it is 25 kWh per average day, or, about 750 KWh / month. Dave Palumbo Hyde Park, VT Sent from my iPhone On Sep 5, 2019, at 5:15 PM, Andrew wrote: Hey Everyone, I have been recently been getting more and more inquiries for some quite large off-grid sytems(25kw per hour) and seeing what you guys have for suggestions on bigger inverters and storage systems? I could do 2 triple stack Schneider’s and a bunch of HUPS industrial batteries but it all just takes up so much space and I know there are some other companies out there with package units. Thoughts? Andrew Perkins Greenwired P: 707-923-2001 ext. 100 1150 #1 Evergreen Rd Redway, CA 95560 www.greenwired.com ___ 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-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org ___ 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-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
[RE-wrenches] Large off-grid inverter/storage
Hey Everyone, I have been recently been getting more and more inquiries for some quite large off-grid sytems(25kw per hour) and seeing what you guys have for suggestions on bigger inverters and storage systems? I could do 2 triple stack Schneider's and a bunch of HUPS industrial batteries but it all just takes up so much space and I know there are some other companies out there with package units. Thoughts? Andrew Perkins Greenwired P: 707-923-2001 ext. 100 1150 #1 Evergreen Rd Redway, CA 95560 www.greenwired.com Description: signature ___ 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-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Residential tracker that has horizontal axis in east-west orientation?
Another potential option: http://www.sulasindustries.com/ Regards, Andrew Truitt www.dr.ventures d: 202.486.7507 NABCEP Certified PV Installation Professional ID: 032407-66 Colorado Journeyman Electrician License No.: 600132 [image: Logo] The content of this email is confidential and intended for the recipient specified in message only. It is strictly forbidden to share any part of this message with any third party, without a written consent of the sender. If you received this message by mistake, please reply to this message and follow with its deletion, so that we can ensure such a mistake does not occur in the future. On Tue, Aug 27, 2019 at 9:04 AM James Jarvis wrote: > Try US Solar Mounts: > > > https://www.ussolarmounts.us/products/adjustable-ground-mount/tracking-system/ > > -James Jefferson Jarvis > APRS World, LLC > > This message sent from my cell phone. My apologies for brevity and > spelling errors. > > On Tue, Aug 27, 2019, 06:35 Christopher Warfel < > cwar...@entech-engineering.com> wrote: > >> Hi Dave, I am looking for a tracker that the horizontal "tube" runs east >> west, so that the modules, when placed in portrait mode, are facing >> south and will adjust their tilt angle based upon mostly by the season. >> They have it so the horizontal tube runs north south and the module >> rotate east west following the daily sun. The cannot be adjusted to >> account for latitude . At noon, no matter what season they will be flat. >> It's no good as you get further north. Hope this makes more sense. Chris >> >> On 8/26/2019 11:01 AM, Dave Angelini Offgrid Solar wrote: >> > Chris, >> > >> > Can you restate this, I do not understand. I use alot of these and have >> > quite a bit of experience with Wattsun, formerly Array tech, formerly >> > Wattsun. I am also looking for a single axis that is on a 6 inch pole. >> > Wattsun only makes the 8 inch that needs a back-hoe for lifting. Too >> heavy >> > for most offgrid. >> > >> > Dave Angelini Offgrid Solar >> > "we go where powerlines don't" >> > http://members.sti.net/offgridsolar/ >> > e-mail offgridso...@sti.net >> > text 209 813 0060 >> > >> > On Mon, 26 Aug 2019 09:33:01 -0400, Christopher Warfel >> > wrote: >> >> Not too long ago there were postings about residential trackers. I put >> >> in a plug for Array Tech, but we are having a very hard time with >> >> getting information on the controller and how to get it to work for our >> >> case. I have moved the sensor every which way but pointing down... >> >> Their controller comes from the commercial/utility side of the company >> >> and is designed to place as many modules on a foot print and eliminate >> >> shading which isn't an issue if you are putting in one single tracker. >> >> The horizontal axis is north south, and the modules move east west. The >> >> array is a zero tilt which is non optimal for most of the year. Does >> >> anyone know of a single axis tracker that is designed for east west >> >> horizontal axis so the modules can adjust throughout the day and >> seasons >> >> with the modules facing south? Thank you, Chris Warfel >> >> >> >> ___ >> >> 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-wrenches-re-wrenches.org >> >> >> >> List-Archive: >> >> >> > >> http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html >> >> List rules & etiquette: >> >> www.re-wrenches.org/etiquette.htm >> >> >> >> Check out or update participant bios: >> >> www.members.re-wrenches.org >> ___ >> 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-wrenches-re-wrenches.org >> >> List-Archive: >> http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html >> >> List rules & etiquette: >> www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> www.members.re-wrenches.org >> >>
Re: [RE-wrenches] Bi-facial modules
Chris - A few resources: Jorge Blanquet at Silfab: j.blanq...@silfabsolar.com. We used their SLA-X 295 modules for a carport project and Jorge was helpful in helping source from 2 different distributors (CED and Krannich). The mods are well built but we're not seeing much backside production. Word on the street is they flash test their bifacials against a white background. Tyler Stewart at Prism: t.stew...@prismsolar.com. I'm not sure if Prism is selling into the resi market right now but Tyler is a good guy and will help you if he can. Chris Deline at NREL: chris.del...@nrel.gov. Chris is working on simulating bifacial production in various applications, following on from his earlier work <https://www.nrel.gov/docs/fy16osti/66496.pdf>. If this customer has a dark roof backside production will be minimal, but if they have a lighter colored roofing material it could boost production, and Chris might be able to point you towards some resources to help estimate that. Regards, Andrew Truitt www.dr.ventures d: 202.486.7507 NABCEP Certified PV Installation Professional ID: 032407-66 Colorado Journeyman Electrician License No.: 600132 [image: Logo] The content of this email is confidential and intended for the recipient specified in message only. It is strictly forbidden to share any part of this message with any third party, without a written consent of the sender. If you received this message by mistake, please reply to this message and follow with its deletion, so that we can ensure such a mistake does not occur in the future. On Tue, Aug 13, 2019 at 12:30 PM Chad Waits wrote: > LG makes bifacials. BayWa will have a stock of them. > > good luck. > > Chad Waits > President > 520-270-4873 > > > > On Tue, Aug 13, 2019 at 10:31 AM Ryan Harkins < > ryan.hark...@energycraft.com> wrote: > >> Hey Chris, >> >> Speed Solar, Inc. in Deerfield, WI stocks bifacial modules from >> Adani/Mundra Solar. >> >> (608) 764-4900 >> a...@speedsolar.net >> >> Ask for Al or Cal. >> >> Now mounting is the trick! >> >> Best, >> Ryan >> >> >> >> On Aug 13, 2019, at 9:08 AM, > ch...@oasismontana.com> wrote: >> >> Hello people: >> >> >> >> We have a customer with their heart set on bi-facial modules for their >> residential project. Despite the lack of import tariffs, they are not >> easily found. Does anyone know of a company offering these? Thanks! >> >> >> >> >> >> Chris Daum >> >> Oasis Montana Inc. >> >> 406-777-4309 >> >> 406-777-4309 fax >> >> *www.oasismontana.com <http://www.oasismontana.com>* >> >> >> >> >> >> >> >> ___ >> 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-wrenches-re-wrenches.org >> >> List-Archive: >> http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html >> >> List rules & etiquette: >> www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> www.members.re-wrenches.org >> >> ___ >> 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-wrenches-re-wrenches.org >> >> List-Archive: >> http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html >> >> List rules & etiquette: >> www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> www.members.re-wrenches.org >> >> ___ > 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-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > > ___ 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-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] SolarEdge reliability declining...???
Hey Howard, We have started to notice this as well, we recently got 2 DOA inverters(new setapps) in a row for the same client.They were not happy either. I have also noticed their tech support has also gotten worse with huge wait times or call backs days later. I really enjoy their equipment but it's a bummer that their quality has gone done hill. Andrew Perkins Greenwired P: 707-923-2001 ext. 100 1150 #1 Evergreen Rd Redway, CA 95560 www.greenwired.com Description: signature From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Howard Arey Sent: Wednesday, July 24, 2019 7:37 AM To: 'RE-wrenches' Subject: [RE-wrenches] SolarEdge reliability declining...??? Have any of you seen significant declines in SolarEdge inverter reliability? We are having more inverter failures that at any time in the past five years of installing SolarEdge. Lots of Code 181 hardware failures mostly in the latest SetApp inverters (the ones without displays.) To compound matters, the RMA process is getting way too long and we are waiting appx 3 weeks on average to receive a replacement. Customers definitely not happy. What are you all seeing? Howard "Scot" Arey Owner, Solar CenTex NABCEP Certified PV Installation Professional 254-300-1228 scot.a...@solarcentex.com www.solarcentex.com <http://www.solarcentex.com/> https://www.facebook.com/SolarCentex Solar Centex Logo - No Back ___ 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-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
[RE-wrenches] IEC 62446-2018
Wrenches - Does anyone know of a way one might get their hands on a copy of the latest IEC 62446 standard without dropping $300+? Regards, Andrew Truitt www.dr.ventures d: 202.486.7507 NABCEP Certified PV Installation Professional ID: 032407-66 Colorado Journeyman Electrician License No.: 600132 [image: Logo] The content of this email is confidential and intended for the recipient specified in message only. It is strictly forbidden to share any part of this message with any third party, without a written consent of the sender. If you received this message by mistake, please reply to this message and follow with its deletion, so that we can ensure such a mistake does not occur in the future. ___ 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-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Consolidating meters
Thanks all! To clarify, we're only looking at consolidating meters for the common area loads, not the individual residences. The dwellings all have their own PSE accounts and will stay on their residential rate. The common area meter tariffs already have demand changes, in some case up to $30/kW in the summer, which is a major driver for consolidation as the aggregated demand can be addressed with storage more cost-effectively. We've engaged a local EE that has consolidated meters in PSG territory and is sending over a feasibility study proposal today. Regards, Andrew Truitt www.dr.ventures d: 202.486.7507 NABCEP Certified PV Installation Professional ID: 032407-66 Colorado Journeyman Electrician License No.: 600132 [image: Logo] The content of this email is confidential and intended for the recipient specified in message only. It is strictly forbidden to share any part of this message with any third party, without a written consent of the sender. If you received this message by mistake, please reply to this message and follow with its deletion, so that we can ensure such a mistake does not occur in the future. On Mon, Jul 8, 2019 at 7:14 AM Dave Tedeyan wrote: > Andrew, > We did this in upstate NY for a housing coop with 12 meters, on two > separate transformers. Our utility put them on a demand meter immediately > even though the demand was never that high. Seems like others have already > warned you to look into that. Another snag was that in NY it required a > petition to the Public Service Commission to allow master metering. There > were certain contracts that needed to be in place for the protection of the > end customer. (i.e., what if the coop fails to pay some bills, but the end > customers are paying the coop. Then it is the end customer that gets > screwed over when the power gets cut off.) They also had a set list of > approved meters that can be used for submetering. We were planning on using > eGauges, but ended up needing to put in an approved glass meter as well. > > Cheers, > Dave > > *Dave Tedeyan, PE* > Senior Engineer | Taitem Engineering, PC > > 110 South Albany Street | Ithaca, NY 14850 > o. *607.277.1118 x121* f. 607.277.2119 > www.taitem.com > > Solar • Sustainability • Energy • Design > B-Corporation Best for the World 2018 Honoree > > > On Sat, Jul 6, 2019 at 4:03 PM Christopher Warfel < > cwar...@entech-engineering.com> wrote: > >> Good point Jeff, HOA could all of a sudden be a commercial demand >> account. I think you have to wait for PSEG to tell you what they allow. >> Every situation seems unique, so it is difficult to say what is typical. >> They may be served by multiple service points. PSEG has that information. >> I think it will save you a lot of running around if you get into a >> discussion with the Customer Service of Distribution Engineering sides of >> the company. If it is served by one xfmr than the meter solution would be >> to meter onthe secondary side. But again, Jeff brings up a good point. >> PSEG should be able to combine all 200 accounts into a single account for >> analysis. They can tell you if demand charges would apply to the master >> account, and if by increased kWh billed in the aggregate, if that would >> push you into a lower kWh tariff rate. Chris >> On 7/5/2019 1:52 PM, Andrew Truitt wrote: >> >> >> Thanks fellas. Todd, these meters are already on a single account but >> NJ's remote net metering law only covers public entities . >> >> Chris, all meters are owned by the same entity (the HOA). We have a call >> into the utility (PSE). We do not have experience in this area so any >> advice you may have on how to be successful in this endeavour based on your >> time on the other side of the curtain would be appreciated. Would an >> entity like this (a community with ~200 homes) typically be served by a >> single transformer or multiple? If a single then the simplest / most >> attainable solution would be to re-route the 15 meter circuits to a >> pad-mounted panelboard / main meter on the secondary side of the >> transformer, right? >> >> >> Regards, >> >> >> Andrew Truitt >> >> www.dr.ventures >> d: 202.486.7507 >> >> NABCEP Certified PV Installation Professional ID: 032407-66 >> Colorado Journeyman Electrician License No.: 600132 >> >> [image: Logo] >> >> >> >> The content of this email is confidential and intended for the recipient >> specified in message only. It is strictly forbidden to share any part of >> this message with any third party, without a written consent of the sender. >> If you received this message by mistake
Re: [RE-wrenches] Consolidating meters
Thanks fellas. Todd, these meters are already on a single account but NJ's remote net metering law only covers public entities . Chris, all meters are owned by the same entity (the HOA). We have a call into the utility (PSE). We do not have experience in this area so any advice you may have on how to be successful in this endeavour based on your time on the other side of the curtain would be appreciated. Would an entity like this (a community with ~200 homes) typically be served by a single transformer or multiple? If a single then the simplest / most attainable solution would be to re-route the 15 meter circuits to a pad-mounted panelboard / main meter on the secondary side of the transformer, right? Regards, Andrew Truitt www.dr.ventures d: 202.486.7507 NABCEP Certified PV Installation Professional ID: 032407-66 Colorado Journeyman Electrician License No.: 600132 [image: Logo] The content of this email is confidential and intended for the recipient specified in message only. It is strictly forbidden to share any part of this message with any third party, without a written consent of the sender. If you received this message by mistake, please reply to this message and follow with its deletion, so that we can ensure such a mistake does not occur in the future. On Fri, Jul 5, 2019 at 5:57 AM Christopher Warfel < cwar...@entech-engineering.com> wrote: > I used to work for a utility and it is utility dependent. The key I think > is whether all the submetering customers are actually owned by the same > entity. For example, a commercial complex may have several building on > site, each submetered. The whole complex could be master metered at the > service delivery point. If so, master metering will save in several ways, > most notably the monthly charge, but demand charges and possibly a > reduction in the energy charge depending upon the tariff can also occur. > The utility should be able to run the analysis for you. I would request > from the utility the details on master metering at the location. This will > quickly get you into their domain/processes. Unless you have experience in > this area, it can be difficult to calculate the cost/benefit. Chris > > > On 7/4/2019 2:09 PM, Andrew Truitt wrote: > > > Happy 4th Wrenches! Has anyone ever been through the process of > consolidating utility electric meters for a client? We're talking to an > HOA that has 15 meters throughout the community for common area loads > (clubhouse, pool pump, lighting, fountain...) so they're paying a fixed > monthly charge on each in addition to energy and demand charges. > Consolidating to a single master meter (possibly with sub-metering) would > likely lower their costs on its own, and (more importantly?) would improve > the value proposition for a PV+ESS installation. We're not sure if the > community is served by a single or multiple transformers yet, but if it is > just one then the process should be straightforward from a technical > standpoint. The interwebs tell me that some providers (seems like mostly > co-ops) are open to this, but I can't find anything for this particular > utility. > > > Regards, > > > Andrew Truitt > > www.dr.ventures > d: 202.486.7507 > > NABCEP Certified PV Installation Professional ID: 032407-66 > Colorado Journeyman Electrician License No.: 600132 > > [image: Logo] > > > > The content of this email is confidential and intended for the recipient > specified in message only. It is strictly forbidden to share any part of > this message with any third party, without a written consent of the sender. > If you received this message by mistake, please reply to this message and > follow with its deletion, so that we can ensure such a mistake does not > occur in the future. > > > ___ > 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-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette:www.re-wrenches.org/etiquette.htm > > Check out or update participant bios:www.members.re-wrenches.org > > ___ > 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-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participan
[RE-wrenches] Consolidating meters
Happy 4th Wrenches! Has anyone ever been through the process of consolidating utility electric meters for a client? We're talking to an HOA that has 15 meters throughout the community for common area loads (clubhouse, pool pump, lighting, fountain...) so they're paying a fixed monthly charge on each in addition to energy and demand charges. Consolidating to a single master meter (possibly with sub-metering) would likely lower their costs on its own, and (more importantly?) would improve the value proposition for a PV+ESS installation. We're not sure if the community is served by a single or multiple transformers yet, but if it is just one then the process should be straightforward from a technical standpoint. The interwebs tell me that some providers (seems like mostly co-ops) are open to this, but I can't find anything for this particular utility. Regards, Andrew Truitt www.dr.ventures d: 202.486.7507 NABCEP Certified PV Installation Professional ID: 032407-66 Colorado Journeyman Electrician License No.: 600132 [image: Logo] The content of this email is confidential and intended for the recipient specified in message only. It is strictly forbidden to share any part of this message with any third party, without a written consent of the sender. If you received this message by mistake, please reply to this message and follow with its deletion, so that we can ensure such a mistake does not occur in the future. ___ 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-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
[RE-wrenches] Small canopy options
Does anyone have experience with / recommendations for small (~25-35kW) solar canopy structures? Its a bit of a "tweener" size... Regards, Andrew Truitt www.dr.ventures d: 202.486.7507 NABCEP Certified PV Installation Professional ID: 032407-66 Colorado Journeyman Electrician License No.: 600132 [image: Logo] The content of this email is confidential and intended for the recipient specified in message only. It is strictly forbidden to share any part of this message with any third party, without a written consent of the sender. If you received this message by mistake, please reply to this message and follow with its deletion, so that we can ensure such a mistake does not occur in the future. ___ 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-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] AC/DC coupling on conext
I would love to use that setup but I cant export any power, I can buy it but nothing can go back to the grid. Can the LG Chem be programmed to do that? I havent put one in yet but really want too. Andrew Perkins Greenwired P: 707-923-2001 ext. 100 1150 #1 Evergreen Rd Redway, CA 95560 www.greenwired.com Description: signature From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of August Goers Sent: Monday, June 24, 2019 3:29 PM To: RE-wrenches Subject: Re: [RE-wrenches] AC/DC coupling on conext Andrew - I imagine you've already considered a StorEdge and LG Chem battery? August Luminalt On Mon, Jun 24, 2019 at 11:18 AM Andrew wrote: Wrenches, I got a situation where I got a client who wants to get solar with battery backup but where he is located the grid cannot currently accept incoming solar, but we can buy from them. I was thinking about doing an conext xw system and then solaredge ac coupling for module level shutdown but I don’t know how well that would be on the conext side of things for charging some discover lithium ion batteries? I would rather do standard DC coupled system but not familiar with any of those 3rd party rapid shutdown devices(fire raptor and midnite?), has anyone used any before? Andrew Perkins Greenwired P: 707-923-2001 ext. 100 1150 #1 Evergreen Rd Redway, CA 95560 www.greenwired.com Description: signature ___ 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-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org ___ 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-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] AC/DC coupling on conext
Tigo awesome I will check them out thanks Jerry! From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Jerry Shafer Sent: Monday, June 24, 2019 5:47 PM To: RE-wrenches Subject: Re: [RE-wrenches] AC/DC coupling on conext Andrew You may want to look at Tigo for the MLSD, Outback Radian and Blue Ion LI battery W/integrated BMS Jerry On Mon, Jun 24, 2019, 11:18 AM Andrew wrote: Wrenches, I got a situation where I got a client who wants to get solar with battery backup but where he is located the grid cannot currently accept incoming solar, but we can buy from them. I was thinking about doing an conext xw system and then solaredge ac coupling for module level shutdown but I don’t know how well that would be on the conext side of things for charging some discover lithium ion batteries? I would rather do standard DC coupled system but not familiar with any of those 3rd party rapid shutdown devices(fire raptor and midnite?), has anyone used any before? Andrew Perkins Greenwired P: 707-923-2001 ext. 100 1150 #1 Evergreen Rd Redway, CA 95560 www.greenwired.com Description: signature ___ 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-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org ___ 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-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] AC/DC coupling on conext
Hey Peter, Thanks for the input, I recently had another installer recommend them to me a couple weeks ago so Ill check them out. Do you know if they can handle the lithium ion batteries? Kinda looks like they have their own battery? Andrew Perkins Greenwired P: 707-923-2001 ext. 100 1150 #1 Evergreen Rd Redway, CA 95560 www.greenwired.com Description: signature From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of pgir...@mindspring.com Sent: Monday, June 24, 2019 12:06 PM To: 'RE-wrenches' Subject: Re: [RE-wrenches] AC/DC coupling on conext Andrew Take a look at the Sol-Ark product. Far more robust than the SE and probably the best hybrid on the market. Can take up to 11 kw worth of solar, 8 kw AC of output with high peak levels. Easy to wire and the customer support is great. Does work with rapid shut down from a few vendors. We have been very happy with the production #s as well as the battery charging and management. Can be programed to power the CL panels as well as the main panel without selling back to the grid. Thx Peter Giroux ASAE From: RE-wrenches On Behalf Of Andrew Sent: Monday, June 24, 2019 2:18 PM To: RE-wrenches Subject: [RE-wrenches] AC/DC coupling on conext Wrenches, I got a situation where I got a client who wants to get solar with battery backup but where he is located the grid cannot currently accept incoming solar, but we can buy from them. I was thinking about doing an conext xw system and then solaredge ac coupling for module level shutdown but I don't know how well that would be on the conext side of things for charging some discover lithium ion batteries? I would rather do standard DC coupled system but not familiar with any of those 3rd party rapid shutdown devices(fire raptor and midnite?), has anyone used any before? Andrew Perkins Greenwired P: 707-923-2001 ext. 100 1150 #1 Evergreen Rd Redway, CA 95560 www.greenwired.com Description: signature ___ 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-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
[RE-wrenches] AC/DC coupling on conext
Wrenches, I got a situation where I got a client who wants to get solar with battery backup but where he is located the grid cannot currently accept incoming solar, but we can buy from them. I was thinking about doing an conext xw system and then solaredge ac coupling for module level shutdown but I don't know how well that would be on the conext side of things for charging some discover lithium ion batteries? I would rather do standard DC coupled system but not familiar with any of those 3rd party rapid shutdown devices(fire raptor and midnite?), has anyone used any before? Andrew Perkins Greenwired P: 707-923-2001 ext. 100 1150 #1 Evergreen Rd Redway, CA 95560 www.greenwired.com Description: signature ___ 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-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Residential tracker options
Sulas <http://www.sulasindustries.com/> is pretty new, but I've heard good things. The concept is similar to Zomeworks, but they use paraffin wax instead of whatever fluid Zomeworks uses (freon?) with the intention of avoiding reliability issues while maintaining the simplicity and positive economics of passive actuation. - Andrew "Don't get me wrong: I love nuclear energy! It's just that I prefer fusion to fission. And it just so happens that there's an enormous fusion reactor safely banked a few million miles from us. It delivers more than we could ever use in just about 8 minutes. And it's wireless!" ~William McDonough On Thu, Jun 13, 2019 at 3:13 PM Dave Angelini Offgrid Solar < offgridso...@sti.net> wrote: > Have you looked at the Wattsun HZLA? No ladders and with the right module > about 5KW tracked. Perfect for long hours of cooling or pumping. > http://www.wattsun.com/products/accutrak-hzla-tracker > > *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, 13 Jun 2019 12:46:58 -0400, Dave Tedeyan > wrote: > > Chris, > We have used AER for trackers. We've had good success with them. > https://www.allearthrenewables.com/product/allearth-solar-trackers > > Cheers, > Dave > > *Dave Tedeyan, PE* > Senior Engineer | Taitem Engineering, PC > > 110 South Albany Street | Ithaca, NY 14850 > o. 607.277.1118 x121 f. 607.277.2119 > www.taitem.com > > Solar • Sustainability • Energy • Design > B-Corporation Best for the World 2018 Honoree > > On Thu, Jun 13, 2019 at 12:40 PM wrote: > >> Dear people: >> >> Now that Zomeworks is more-or-less down the tubes, what resources do you >> have for a residential tracking system? Wattsun's 'one size fits all' >> really doesn't (and I don't need a need a lecture of ROI for buying more >> modules versus a tracker). I'm just wondering if there are more options >> besides the utility grade models. We have a great pole mount supplier – >> but some folks want a tracker. I'm looking forward to your responses. >> >> Best, >> >> Chris Daum >> >> >> Oasis Montana Inc. >> >> >> 406-777-4309 >> >> >> >> >> ___ >> 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-wrenches-re-wrenches.org >> >> List-Archive: >> http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html >> >> List rules & etiquette: >> www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> www.members.re-wrenches.org >> > -- > > > > > > ___ > 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-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > > ___ 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-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Retrofit BMS
Thanks fellas, great feedback. Nuvation looks pretty solid David. I've heard of issues arising when integrating Li+ BMS system with hybrid solar inverters even when they represent that they are Li+ compatible, such as tripping overcurrent protection in the BMS with milisecond-level surges at inverter start-up. Sounds like that has not been an issue for you with this system? Regards, Andrew Truitt www.dr.ventures d: 202.486.7507 NABCEP Certified PV Installation Professional ID: 032407-66 Colorado Journeyman Electrician License No.: 600132 [image: Logo] The content of this email is confidential and intended for the recipient specified in message only. It is strictly forbidden to share any part of this message with any third party, without a written consent of the sender. If you received this message by mistake, please reply to this message and follow with its deletion, so that we can ensure such a mistake does not occur in the future. On Sat, May 4, 2019 at 1:10 PM David Katz wrote: > I have used Nuvation BMS with Nissan Leaf batteries in a off grid hone. > They have been running for 2 years and the cells are staying within 0.02 > volts. > There are a lot of parameters to set but their tech help is great. They > can drive 4 relays based on almost anything you can think of and they also > have modbus output. > David Katz > > On Fri, May 3, 2019 at 2:47 PM Andrew Truitt wrote: > >> >> Wrenches - I have an opportunity to take possession of some lightly used >> 2 kWh Lishen LFP battery packs for next to nothing. What's the catch? No >> BMS. Anyone have any experience retrofitting a BMS on Li+ batteries? This >> looks interesting <http://electrodacus.com/>, and this EV BMS >> <https://www.orionbms.com/>is theoretically compatible with PV, but I'd >> love to compare with something a little more proven. >> >> >> >> *Regards, * >> >> >> *Andrew Truitt* >> >> www.dr.ventures >> d: 202.486.7507 >> >> NABCEP Certified PV Installation Professional ID: 032407-66 >> Colorado Journeyman Electrician License No.: 600132 >> >> [image: Logo] >> >> >> >> The content of this email is confidential and intended for the recipient >> specified in message only. It is strictly forbidden to share any part of >> this message with any third party, without a written consent of the sender. >> If you received this message by mistake, please reply to this message and >> follow with its deletion, so that we can ensure such a mistake does not >> occur in the future. >> ___ >> 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-wrenches-re-wrenches.org >> >> List-Archive: >> http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html >> >> List rules & etiquette: >> www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> www.members.re-wrenches.org >> >> -- > David Katz Sent from Gmail Mobile > ___ > 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-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > > ___ 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-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
[RE-wrenches] Retrofit BMS
Wrenches - I have an opportunity to take possession of some lightly used 2 kWh Lishen LFP battery packs for next to nothing. What's the catch? No BMS. Anyone have any experience retrofitting a BMS on Li+ batteries? This looks interesting <http://electrodacus.com/>, and this EV BMS <https://www.orionbms.com/>is theoretically compatible with PV, but I'd love to compare with something a little more proven. *Regards, * *Andrew Truitt* www.dr.ventures d: 202.486.7507 NABCEP Certified PV Installation Professional ID: 032407-66 Colorado Journeyman Electrician License No.: 600132 [image: Logo] The content of this email is confidential and intended for the recipient specified in message only. It is strictly forbidden to share any part of this message with any third party, without a written consent of the sender. If you received this message by mistake, please reply to this message and follow with its deletion, so that we can ensure such a mistake does not occur in the future. ___ 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-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Fwd: Well Pump Sizing
Hey Amos. It could be a multitude of things depending on what type of pump motor it uses. Even if you get it fixed it’s still got 10yr parts in it elsewhere that will have to probably be replaced soon too. Have you looked into the Grundfos SQF series? They are really nice, run off AC or DC but are kind of limited to their flow rate at the range I think the best you could get would be 12 gpm. That way he could run the pump during the day off solar direct and then switch it over to AC for evening pumping and cut down usage on his house system. Andrew Perkins Greenwired P: 707-923-2001 ext. 100 1150 #1 Evergreen Rd Redway, CA 95560 www.greenwired.com Description: signature From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Amos Post Sent: Thursday, April 25, 2019 9:22 AM To: RE-wrenches Subject: [RE-wrenches] Fwd: Well Pump Sizing I have an off-grid customer who is having problems with his 10 year+ old 1/2hp well pump. It is running and running at 900watts constant and hardly building pressure and even caused the 250amp breaker on his single VFX3524 inverter to trip. He is running the pump at 240V off a x240 transformer and thinking he might need to replace the pump and might want to go with a larger 3/4hp pump for better performance and more future capacity. Does anyone have experience running 3/4hp pumps on this setup? The pump is approx. 200’ down in the well. -- <https://docs.google.com/uc?id=0B2DkmvpJ0917bnN0ajl2dnRqZnM=download> Amos Post Integrity Energy O: 802.763.7023 C: 802.291.2188 ienergyVT.com <http://ienergyvt.com/> <https://www.facebook.com/integrityenergyllp?ref=br_tf> -- <https://docs.google.com/uc?id=0B2DkmvpJ0917bnN0ajl2dnRqZnM=download> Amos Post Integrity Energy W: 802.763.7023 C: 802.291.2188 ienergyVT.com <https://www.facebook.com/integrityenergyllp?ref=br_tf> ___ 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-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Outback VFX 3648 tech support and parts
I second that from Bruce, I also do a ton of VFX repairs and been getting them at http://photonelectricllc.com they are usually in stock and ship out very fast. Andrew Perkins Greenwired P: 707-923-2001 F: 707-923-2077 1150 #1 Evergreen Rd Redway, CA 95560 www.greenwired.com Description: signature From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Bruce Erickson Sent: Monday, April 15, 2019 8:59 AM To: RE-wrenches Subject: Re: [RE-wrenches] Outback VFX 3648 tech support and parts I just bought a replacement VFX FET board from Photon Electric, at the recommendation of the Outback tech (cheaper than OB he said). http://photonelectricllc.com 574-642-3731. They’re in Indiana. Bruce Erickson Mendocino Solar Service PO Box 1252 Mendocino, CA 95460 707-937-1701 707-937-1741 fax br...@mendocinosolar.com Connecting Mendocino County to Solar Since 1994 On Apr 13, 2019, at 10:45 AM, Greg wrote: Friends, I have a customer who's ready to upgrade to a larger system. He has 6 - VFX3648 inverters that are 10 years old. They're only used in the summer months but still going strong. He needs to increase his system size to about 28kW. My understanding is that Outback no longer supports the old VFX inverters. I'm wondering if anyone knows if we can still get parts? I did see an email from Tump that mentioned someone who repairs boards but I was wondering if I could get boards, maybe I could just install them in any outback inverter and make it into a VFX 3648 (if it had the vent /fan mount in it). Next I'm wondering if the MATE ever died if I could either get a replacement MATE or if a MATE 3 would be compatible? Same question for the HUB10? The VFXs are certainly proven technology. Hate to replace them if I don't have to. Thanks again, Greg Egan Remote Power Inc. ___ 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-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org ___ 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-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Hijacked Website
Hey Dan, I have seen scammers do this before they then usually try to order a bunch of stuff posing as you. You can usually go to https://whois.net/ and type in the web address to see who the account is registered to then contact the domain host and file a complaint to get them taken down. Andrew Perkins Greenwired P: 707-923-2001 F: 707-923-2077 1150 #1 Evergreen Rd Redway, CA 95560 www.greenwired.com Description: signature From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Foxfire Energy Sent: Monday, April 08, 2019 1:33 PM To: RE-wrenches Subject: Re: [RE-wrenches] Hijacked Website The saga continues.. We were just contacted by Family Services from WV seeking payroll info on a fictitious employee who claimed to work for us but gave contact info for the website (Foxfire-Energy-Corporation).. They did give them our phone #.. They're out there folks.. db _ From: re-wrenches-boun...@lists.re-wrenches.org on behalf of Foxfire Energy Sent: Wednesday, April 30, 2014 7:16 PM To: RE-wrenches Subject: [RE-wrenches] Hijacked Website Merry Mud season everyone, We just got the heads up from NABCEP that our website (www.Foxfire-Energy.com) has been hijacked by a fictitious renewable energy organization (www.Foxfire-Energy-Corporation.com). Seems they copied our web site info and posted it on their site with minor modification. a google search of their business location puts them on a dirt road in the middle of no where like three towns down. a phone call brings you to a Philippino sounding call center to a gent who identifies him self as Dutch. I want his Juggler for a chew toy for my Weinerdog. Just wondering if anyone else ran into this, and what might be our recourse. Is this the result of the end of Net Neutrality? Sorry Micheal if this is a off subject. We've worked hard to build up our industry's credibility. Irks me to see some scumbag cubicle dweller trying to cash in. Advice? Thanks db Dan Brown Foxfire Energy Corp. Renewable Energy Systems (802)-483-2564 www.Foxfire-Energy.com NABCEP #092907-44 ___ 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-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Big AGM's and 24V Lithium batteries
Hey Howie, I would recommend staying away from them as well, I had a faulty battery out of the box and it was a nightmare to get them to warranty it, took about 2 months of back and forth for them to agree to warranty the battery. Discover has an excellent YouTube video on the breakdown of the internals theirs vs. the competitor and it’s pretty eye opening. Andrew Perkins Greenwired P: 707-923-2001 F: 707-923-2077 1150 #1 Evergreen Rd Redway, CA 95560 www.greenwired.com Description: signature From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Howie Michaelson Sent: Friday, March 29, 2019 8:51 AM To: RE-wrenches Subject: Re: [RE-wrenches] Big AGM's and 24V Lithium batteries Jerry, I'm looking at all the lithium options out there for an application phycisist client who wants a lithium backup system. Can you elaborate on why Simplify is slow low on your list? Thanks, Howie On Fri, Mar 29, 2019, 12:00 AM Jerry Shafer wrote: Hi, The East Penn UnigyII 2V AGM batteries would be my recommendation. Can go up to 2,100 Ah with single string of 12 x 2V cells. More if you parallel of course. Kevin From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Chris Schaefer Sent: March-28-19 1:09 PM To: RE-wrenches Subject: [RE-wrenches] Big AGM's and 24V Lithium batteries G'Day All, Came across an older DIY 24v off-grid system. Looking to replace current AGM SunXtender batteries with less then 4 years on them but severely abused. Client won't go for my normal Rolls/Surrette because they are very sensitive to smells. Thus I was considering LiFePo4 batteries however I'm having difficulties locating them in a 24v bank. If you know of anyone that goes that way please let me know. So if I'm stuck with AGM's stored indoors what brand would you suggest for a heavy usage (1,500 Ahrs +) home? Thanks, Christopher- Chris Schaefer’s <http://www.solarandwindfx.com> Tel/Fax 585-229-2083 or Cell 585-748-1870 5115 South Hill Road ~ Canandaigua New York 14424 www.solarandwindfx.com ~ E-mail: ch...@solarandwindfx.com <http://solarandwindfx.com/wp-content/uploads/2015/01/certs.jpg> 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 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 List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org ___ 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-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org ___ 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-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Big AGM's and 24V Lithium batteries
Also Relion, https://relionbattery.com/products/lithium Andrew Perkins Greenwired P: 707-923-2001 F: 707-923-2077 1150 #1 Evergreen Rd Redway, CA 95560 www.greenwired.com Description: signature From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Ray Sent: Thursday, March 28, 2019 1:40 PM To: re-wrenches@lists.re-wrenches.org Subject: Re: [RE-wrenches] Big AGM's and 24V Lithium batteries Both Simpliphi and Life Blue can be set up in 24 v configurations. Ray Walters Remote Solar 303 505-8760 On 3/28/19 2:08 PM, Chris Schaefer wrote: G'Day All, Came across an older DIY 24v off-grid system. Looking to replace current AGM SunXtender batteries with less then 4 years on them but severely abused. Client won't go for my normal Rolls/Surrette because they are very sensitive to smells. Thus I was considering LiFePo4 batteries however I'm having difficulties locating them in a 24v bank. If you know of anyone that goes that way please let me know. So if I'm stuck with AGM's stored indoors what brand would you suggest for a heavy usage (1,500 Ahrs +) home? Thanks, Christopher- Chris Schaefer’s <http://www.solarandwindfx.com> Tel/Fax 585-229-2083 or Cell 585-748-1870 5115 South Hill Road ~ Canandaigua New York 14424 www.solarandwindfx.com ~ E-mail: ch...@solarandwindfx.com <http://solarandwindfx.com/wp-content/uploads/2015/01/certs.jpg> 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 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 List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org ___ 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-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Optics-RE
I did it last week and it seems to be only logged in OpticsRE not that Mate3 itself. Don’t know if the picture shows up but on the optics RE event history it will show the online user(depicted as jadesteel) and the on-site(mate3 user) on the event history. Andrew Perkins Greenwired P: 707-923-2001 F: 707-923-2077 1150 #1 Evergreen Rd Redway, CA 95560 www.greenwired.com Description: signature From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of William Miller Sent: Sunday, March 03, 2019 1:01 PM To: RE-wrenches Subject: Re: [RE-wrenches] Optics-RE Jay: I do not believe programming changes are logged anywhere in Optics or locally. However you can program Optics to notify you if a programming change occurs. You can see that changes were made but not what those changes are. See below for an excerpt of an email alert I received on one of our systems. I might add that none of these changes are real. These are all phantom changes-- which is an ongoing bug with the Optics System. These notifications will also inform you if actual changes are made, but again not what was changed. This bug makes it hard to trust these notifications. If you are worried about unauthorized persons making changes, your best practice is to set an installer password and limit access. Event Description Timestamp Configuration changes are made remotely via OPTICS 02/21/2019 07:31 Configuration changes are made locally via MATE3/AXS Port 02/21/2019 07:32 Configuration changes are made remotely via OPTICS 02/21/2019 07:33 Configuration changes are made remotely via OPTICS 02/21/2019 07:33 Configuration changes are made locally via MATE3/AXS Port 02/21/2019 07:33 Kienan: You can save and restore configurations while on site. You may know this and I may be misunderstanding your question—the function is pretty visible on the Mate3 or 3s. You save the configuration files to SD card and you can copy them from the card to a computer for record keeping or later analysis. Frequently saving this file is how you create a log of programming changes. There is a way you can parse the settings into a spreadsheet. Unfortunately I do not believe saving configuration files can be automated or done remotely. I hope this information helps. William Miller PS: I have records of an Outback FX system changing its own settings, even changing stacking autonomously (shutting down the system). This is another reason I have a love/hate relationship with Outback. Wm -Original Message- From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Kienan Maxfield Sent: Sunday, March 3, 2019 7:36 AM To: RE-wrenches Subject: Re: [RE-wrenches] Optics-RE No, but it would be a great idea. Another feature that would be nice would be an option to export/import complete configurations. -Kienan > On Mar 2, 2019, at 10:04 PM, Jay wrote: > > Hi all, > > Does optics RE have a history of changes made to setpoints/settings? > > I’m pretty sure not, but wanted to check, > > Thx > > Jay > > PS. And if not might be a good thing to add? > ___ > List sponsored by Redwood Alliance > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > https://nam02.safelinks.protection.outlook.com/?url=http%3A%2F%2Flists.re-wrenches.org%2Foptions.cgi%2Fre-wrenches-re-wrenches.org > > <https://nam02.safelinks.protection.outlook.com/?url=http%3A%2F%2Flists.re-wrenches.org%2Foptions.cgi%2Fre-wrenches-re-wrenches.orgdata=02%7C01%7C%7Cb408cd7513af43a46fe008d69f95c82a%7C84df9e7fe9f640afb435%7C1%7C0%7C636871862983916124sdata=Roz%2BSTN12lQIWn%2BtbQXyzwT5grg1nhRC3adf5FC7SiA%3Dreserved=0> > > data=02%7C01%7C%7Cb408cd7513af43a46fe008d69f95c82a%7C84df9e7fe9f640afb435%7C1%7C0%7C636871862983916124sdata=Roz%2BSTN12lQIWn%2BtbQXyzwT5grg1nhRC3adf5FC7SiA%3Dreserved=0 > > List-Archive: > https://nam02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.mail-archive.com%2Fre-wrenches%40lists.re-wrenches.org%2Fmaillist.html > > <https://nam02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.mail-archive.com%2Fre-wrenches%40lists.re-wrenches.org%2Fmaillist.htmldata=02%7C01%7C%7Cb408cd7513af43a46fe008d69f95c82a%7C84df9e7fe9f640afb435%7C1%7C0%7C636871862983926141sdata=jzPKXgT6zbQ%2BVm%2BLUQc62p6omhOuqs3EdYa1tgW9JFs%3Dreserved=0> > > data=02%7C01%7C%7Cb408cd7513af43a46fe008d69f95c82a%7C84df9e7fe9f640afb435%7C1%7C0%7C636871862983926141sdata=jzPKXgT6zbQ%2BVm%2BLUQc62p6omhOuqs3EdYa1tgW9JFs%3Dreserved=0 > > List rules & etiquette: > https://nam02.safelinks.protection.outlook.com/?url=www.re-wrenches.org%2Fe
Re: [RE-wrenches] Corrugated Metal - Odd Seam Profile
Hey Sam, Would Ejot work for this scenario? They have a wide range of washers for that. https://ejot-usa.com/products/solar-fastening-systems/for-exposed-fastener-metal-roofs/storm-washer-selection-guide Andrew Perkins Greenwired P: 707-923-2001 F: 707-923-2077 1150 #1 Evergreen Rd Redway, CA 95560 www.greenwired.com Description: signature From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Sam Haraldson Sent: Thursday, February 14, 2019 9:05 AM To: RE-wrenches Subject: [RE-wrenches] Corrugated Metal - Odd Seam Profile Wrenches, I have encountered a corrugated metal seam profile that doesn't fit the standard S-5! Corrubracket we typically employ. I'm looking for alternate solutions if you will, please. The corrugation pattern is 1-1/4" from "ridge" top to "ridge" top and the depth of the "valley" is 1/4". A drawing is attached explaining this further. -- Sam Haraldson, <https://onsiteenergyinc.com/about-us#haraldson> Installation Manager OnSite Energy, Inc. NABCEP PV Pro #PV-042217-016714 ___ 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-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] SMA Kiosk
Locus (now part of Also) has a pretty nice kiosk view <http://kiosk.datareadings.com/P63FsYjN/project-info/1/photos/1?slideshow=true>, though you'd need to install a Locus meter. Regards, Andrew Truitt www.dr.ventures d: 202.486.7507 NABCEP Certified PV Installation Professional ID: 032407-66 Colorado Journeyman Electrician License No.: 600132 [image: Logo] The content of this email is confidential and intended for the recipient specified in message only. It is strictly forbidden to share any part of this message with any third party, without a written consent of the sender. If you received this message by mistake, please reply to this message and follow with its deletion, so that we can ensure such a mistake does not occur in the future. On Wed, Feb 13, 2019 at 3:40 PM Sam Haraldson wrote: > We have a couple Sunny Portal kiosks out in the world. It's quite easy to > set up, but the downside to it is how lackluster the information displayed > looks on a screen. Especially considering how nice these kiosks look when > using a Solaredge or Fronius inverter. Here are examples of what each > manufacturer's "kiosk" display looks like: > > SMA: > > https://www.sunnyportal.com/Templates/PublicPage.aspx?page=0d53e0d8-e5ff-4ad8-8267-a3363b9485e9 > > Fronius: > > https://www.solarweb.com/PvSystems/PvSystem?pvSystemId=fc073f0c-ce57-4cbf-9678-a576013cd6a8 > > Solaredge: > > https://monitoringpublic.solaredge.com/solaredge-web/p/kiosk?guid=0cd30edc-039b-48aa-9a3f-e3a295ce9d47 > > I have reached out to SMA inquiring whether they had any suggestions or > whether that was something they were working on improving but I didn't > really get anywhere in that discussion. > > - Sam > > -- > OnSite Energy > Bozeman, MT > ___ > 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-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > > ___ 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-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Large Scale / HV Battery Based Systems.
Hey Steve, Check out EnergPort they have some commercial turnkey systems that can just dropped in. http://www.energport.com/utility-scale-ac-container/ Andrew Perkins Greenwired P: 707-923-2001 F: 707-923-2077 1150 #1 Evergreen Rd Redway, CA 95560 www.greenwired.com Description: signature From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Steve Higgins Sent: Friday, January 25, 2019 9:54 AM To: re-wrenches@lists.re-wrenches.org Subject: [RE-wrenches] Large Scale / HV Battery Based Systems. Hello Wrenches... I've got a question for you guys. Please forgive me if this is stepping out of bounds... As you know I work for Rolls Battery, but I am also involved a bit in some moonlighting on system development, but mostly consulting on what I call "orphaned solar systems"... I got a request yesterday from a good client in South America who wants to power a very large building and needs to power a continuous load of 80kw for 14-16 hours daily. They are currently spending about $15,000.00 per month on fuel to run a generator. To this point, it's absolutely crazy in my mind to design a 48 volt system for this, it makes no sense to me to do so, unless you do a SMA Boy/Island Multi-cluster system... Has anyone worked with companies like Ideal Power or Princeton Power that would do high voltage battery based inverter/charger? Are there any other companies out there that make an "off the shelf" product that would do this effectively? What other options would you suggest? <http://www.rollsbattery.com> Steve Higgins ⋅ Technical Services Manager t +1.902.597.4020 m +1.206.790.5840 f +1.902.597.8447 e <mailto:st...@surrette.com> st...@surrette.com <http://www.facebook.com/RollsBattery> <http://www.twitter.com/RollsBattery> <https://www.youtube.com/user/RollsBattery> <https://www.linkedin.com/company/rolls-battery-engineering> <http://www.instagram.com/RollsBattery> _ CONFIDENTIALITY: The information transmitted herein is intended only for the addressee and may contain confidential, proprietary and/or privileged material. Any unauthorized review, distribution or other use of or the taking of any action in reliance upon this information is prohibited. If you receive this email in error, please contact the sender and delete or destroy this message and all copies. _ ___ 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-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Module level storage
Hey Jay, Looks like they are really counting on the SGIP to make them worthwhile otherwise the cost just isn’t worth it. And then there is the whole having a bunch of batteries on the roof… Andrew Perkins Greenwired From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Jay Sent: Wednesday, January 09, 2019 5:07 PM To: re-wrenches@lists.re-wrenches.org Subject: [RE-wrenches] Module level storage Hi all, I had someone send me this link about a battery storage device that fits under the modules. Curious if anyone has seen it, knows anything about it, or opinions? https://simplglobal.com/ It doesn’t seem right to me. But I bet someone out there knows more, Thx Jay Peltz power. ___ 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-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Lithium battery cost
Good point Dave. LFP has a much higher ignition point than NMC and that added safety is often deemed worth the added weight for stationary applications. Not sure about resi-scale costs but Adara has a nice C product priced in the range you mentioned Jay, but including design, installation, commissioning and 10 years of O Powin Energy has VERY competitive pricing starting in the 500kWh range, and will have smaller packs coming out next year. *Regards, * *Andrew Truitt* www.dr.ventures d: 202.486.7507 NABCEP Certified PV Installation Professional ID: 032407-66 Colorado Journeyman Electrician License No.: 600132 [image: Logo] The content of this email is confidential and intended for the recipient specified in message only. It is strictly forbidden to share any part of this message with any third party, without a written consent of the sender. If you received this message by mistake, please reply to this message and follow with its deletion, so that we can ensure such a mistake does not occur in the future. On Fri, Dec 21, 2018 at 8:38 AM Dave Angelini Offgrid Solar < offgridso...@sti.net> wrote: > The Chevy, Tesla, Nissan are all NMC lithium. Residential is mostly all > LFP except LG. > NMC is about 1/2 the weight as LFP also. Different design goals is my > take. > > Dave Angelini Offgrid Solar > "we go where powerlines don't" > http://members.sti.net/offgridsolar/ > e-mail offgridso...@sti.net > text 209 813 0060 > > On Thu, 20 Dec 2018 17:05:47 -0800, Jay wrote: > > Hi all, > > > > I was doing some research on the Chevy bolt, and found that it’s battery > > cost about $145 per kWh in 2015. > > > > All the batteries I can find for sale for offgrid small systems ( 10-100 > > kWh) are in the $700-1000 per kWh > > > > Does anyone have insight into this. > > Or maybe better put, ways to buy at closer to the $145 kWh? > > > > Thanks > > > > Jay > > Peltz power. > > > > > > > > > > > > > > ___ > > 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-wrenches-re-wrenches.org > > > > List-Archive: > > > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > > > List rules & etiquette: > > www.re-wrenches.org/etiquette.htm > > > > Check out or update participant bios: > > www.members.re-wrenches.org > > -- > > ___ > 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-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > > ___ 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-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Portable Power Centers
Peter - I would contact Faisal at GetChargedUp, they've been doing great things with mobile power for PR <https://getchargedup.net/empower-emergency/building-a-solar-trailer/>, and their based in CA, and they know what they're doing. Scott Sklar at The Stella Group <http://www.thestellagroupltd.com/> has built some very robust mobile solutions for the US military. A few other options: http://www.mobilesolarpower.net/ https://www.amerescosolar.com/solar-power-mobile-solutions https://www.bigdogsolar.com/custom-mobile-solar-trailers/ *Regards, * *Andrew Truitt* www.dr.ventures d: 202.486.7507 NABCEP Certified PV Installation Professional ID: 032407-66 Colorado Journeyman Electrician License No.: 600132 [image: Logo] The content of this email is confidential and intended for the recipient specified in message only. It is strictly forbidden to share any part of this message with any third party, without a written consent of the sender. If you received this message by mistake, please reply to this message and follow with its deletion, so that we can ensure such a mistake does not occur in the future. On Sun, Dec 9, 2018 at 10:10 AM Dan Fink wrote: > Every one of these I've seen so fardating back over 10 > yearsdrastically undersizes the battery bank, I assume because that's > the expensive part. > > Dan Fink > Professor of Solar Energy Technology, Ecotech Institute > IREC Certified Instructor™ for: > ~ PV Installation Professional > ~ Small Wind Installer > Executive Director, Buckville Energy > NABCEP Registered Continuing Education Providers™ > NABCEP PV Associate > > 970.672.4342 > > > > > On Sun, Dec 9, 2018 at 9:21 AM glenn.b...@glbcc.com > wrote: > >> I recently saw a YouTube video that compared 4 or 5 portable power units. >> You might try a search there. >> >> Glenn >> >> Sent from my 'smart' phone so please excuse spelling and typos. >> >> -- Original message-- >> *From: *Peter Parrish >> *Date: *Sun, Dec 9, 2018 1:17 AM >> *To: *RE-wrenches; >> *Cc: * >> *Subject:*[RE-wrenches] Portable Power Centers >> >> We are working with Turning Point Foundation a 501(c)3 to provide >> off-grid power for their River Haven project which is providing >> transitional housing for homeless folks in the Ventura CA area. >> >> >> >> The site is truly off-grid and currently uses propane to power three >> refrigerators and cook stoves. There is no space heating for the single >> occupancy rooms as of yet. But that’s another problem. >> >> >> >> We are looking to specify DC refrigerators and PV-powered battery storage >> for the River Haven project. We are looking at the Goal Zero Yeti-3000 >> system (3000 Whr, 500 full discharge cycles, to 80% residual capacity) at a >> sale price of $2,400 but are finding the extra cost of their PV modules >> quite steep. And looking at other 36-cell (12 volt) modules, I can’t find >> anything for less than $1.10/W. >> >> >> >> Since Goal Zero is looking at the recreational market, I thought that >> there might be o ther companies with comparable product offerings that are >> focusing on other markets like developing countries. >> >> >> >> Any advice would be appreciated and you may contact us off-line. >> >> >> >> Peter T. Parrish >> SolarGnosis >> 1107 Fair Oaks Ave. Ste. 351 >> South Pasadena, CA 91030 >> (323) 839-6108 >> peter.parr...@solargnosis.com >> >> >> ___ >> 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-wrenches-re-wrenches.org >> >> List-Archive: >> http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html >> >> List rules & etiquette: >> www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> www.members.re-wrenches.org >> >> ___ > 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-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > > ___ 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-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
[RE-wrenches] SMA CORE1 62.5kW availability
Does anyone know of an east coast distributor with the new CORE1 62-US inverters in stock? Our distributor is experiencing delays. *Regards, * *Andrew Truitt* www.dr.ventures d: 202.486.7507 NABCEP Certified PV Installation Professional ID: 032407-66 Colorado Journeyman Electrician License No.: 600132 [image: Logo] The content of this email is confidential and intended for the recipient specified in message only. It is strictly forbidden to share any part of this message with any third party, without a written consent of the sender. If you received this message by mistake, please reply to this message and follow with its deletion, so that we can ensure such a mistake does not occur in the future. ___ 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-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Microfractures
Jerry - Thanks for the input! No snail trails or burn marks at his point as the system has yet to be commissioned. There will be an aerial IR inspection once we're operating and if anything shows up it'll be addressed for sure, but my understanding of microfractures is that the effects often don't show up for years (save for what can be seen with EL testing). *Regards, * *Andrew Truitt* www.dr.ventures d: 202.486.7507 NABCEP Certified PV Installation Professional ID: 032407-66 Colorado Journeyman Electrician License No.: 600132 [image: Logo] The content of this email is confidential and intended for the recipient specified in message only. It is strictly forbidden to share any part of this message with any third party, without a written consent of the sender. If you received this message by mistake, please reply to this message and follow with its deletion, so that we can ensure such a mistake does not occur in the future. On Fri, Nov 16, 2018 at 5:27 PM Jerry Shafer wrote: > Andrew, Wrenches > While in Hawaii, l had modules that had fractures, some showed up in low > performance, some did not and l don't recall there being a wobble on the > high side. I would suggest inspecting what the modules look in question. > Most of the time the cracks are visable and may look like worm tracks, they > will be across the modules. Also look for what appears to be cigarette > burns, this is trace arcing or at least overheating of the trace and they > can appear at the interconnecting trace or main traces mostly at the change > in direction of the trace. I have also had bad bypass diode connections > have issues effecting performance curves. > Jerry > NABCEP Inspector > NABCEP Installer > > On Fri, Nov 16, 2018, 12:03 PM Andrew Truitt >> >> >> Wrenches - Does anyone have experience getting electroluminescence (EL) >> test results from module manufacturers? I just shot some module IV curves >> as part of an acceptance test and they all show some irregularities on the >> vertical slope that Solmetric says are indicative of microfractures: >> >> [image: image.png] >> >> >> It seems the optimal course of action here is to perform EL testing on a >> random sample of mods in the field and compare with images from the factory >> to hone in on the root cause. However field EL testing is not cheap and >> even if we do determine that the damage occured after modules left the >> factory, how could it be proven if its the shipper or the EPC at fault? I >> foresee everyone pushing back and invoking the performance warranty as the >> backstop if issues pop up in the future (assuming nothing shows up during >> performance testing next month), but the last thing we want deal with is a >> massive (or worse, piecemeal) warranty claim in 5 years. Or the array may >> mildly underperform year over year, not enough to trigger warranties but >> still costing thousands in lost revenue. The system is a 200kW ground >> mount in CO using tier 1 (top 5) Chinese modules. Anyone dealt with this >> type of situation before? >> >> >> >> *Regards, * >> >> >> *Andrew Truitt* >> >> www.dr.ventures >> d: 202.486.7507 >> >> NABCEP Certified PV Installation Professional ID: 032407-66 >> Colorado Journeyman Electrician License No.: 600132 >> >> [image: Logo] >> >> >> >> The content of this email is confidential and intended for the recipient >> specified in message only. It is strictly forbidden to share any part of >> this message with any third party, without a written consent of the sender. >> If you received this message by mistake, please reply to this message and >> follow with its deletion, so that we can ensure such a mistake does not >> occur in the future. >> >> >> ___ >> 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-wrenches-re-wrenches.org >> >> List-Archive: >> http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html >> >> List rules & etiquette: >> www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> www.members.re-wrenches.org >> >> ___ > 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-wrenches-re-wrenches.org > > List-Archive: > http://
[RE-wrenches] Microfractures
Wrenches - Does anyone have experience getting electroluminescence (EL) test results from module manufacturers? I just shot some module IV curves as part of an acceptance test and they all show some irregularities on the vertical slope that Solmetric says are indicative of microfractures: [image: image.png] It seems the optimal course of action here is to perform EL testing on a random sample of mods in the field and compare with images from the factory to hone in on the root cause. However field EL testing is not cheap and even if we do determine that the damage occured after modules left the factory, how could it be proven if its the shipper or the EPC at fault? I foresee everyone pushing back and invoking the performance warranty as the backstop if issues pop up in the future (assuming nothing shows up during performance testing next month), but the last thing we want deal with is a massive (or worse, piecemeal) warranty claim in 5 years. Or the array may mildly underperform year over year, not enough to trigger warranties but still costing thousands in lost revenue. The system is a 200kW ground mount in CO using tier 1 (top 5) Chinese modules. Anyone dealt with this type of situation before? *Regards, * *Andrew Truitt* www.dr.ventures d: 202.486.7507 NABCEP Certified PV Installation Professional ID: 032407-66 Colorado Journeyman Electrician License No.: 600132 [image: Logo] The content of this email is confidential and intended for the recipient specified in message only. It is strictly forbidden to share any part of this message with any third party, without a written consent of the sender. If you received this message by mistake, please reply to this message and follow with its deletion, so that we can ensure such a mistake does not occur in the future. ___ 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-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Any thoughts on this approach to adding battery backup to an existing grid tie system will be appreciated.
Anyone have any experience with the SMA Sunny Boy Storage for this application? Li+ compatible, HVDC bus, black-start capable... looks like no generator input though. I wonder how well it works when AC coupled with with non-SMA inverters. *Regards, * *Andrew Truitt* www.dr.ventures d: 202.486.7507 NABCEP Certified PV Installation Professional ID: 032407-66 Colorado Journeyman Electrician License No.: 600132 [image: Logo] "Don't get me wrong: I love nuclear energy! It's just that I prefer fusion to fission. And it just so happens that there's an enormous fusion reactor safely banked a few million miles from us. It delivers more than we could ever use in just about 8 minutes. And it's wireless!" ~William McDonough On Thu, Sep 13, 2018 at 6:21 AM Will White wrote: > I agree with everything Ray has said when you're using a system with > lead-acid batteries, however this doesn't apply to lithium-ion. Li > batteries don't need multistage charging like LA batteries do so they would > be a perfect fit for a retro-fit battery backup system that can only bulk > charge. > > I'd also suggest people check out the Enphase IQ8 system which allows the > inverters to operate without the grid with no storage. They should also be > able to black start an AC coupled system with no grid unlike other AC > coupled designs. I haven't seen it in person but two of my co-workers > toured their demo project and it seems to live up to everything Enphase is > claiming. > > Thanks, > Will > > On Wed, Sep 12, 2018 at 8:38 PM Ray wrote: > >> I didn't watch the whole thing, but it looked like a standard AC couple >> set up with an Outback Radian. My understanding is that Outback no longer >> supports AC Coupling, BTW. I would never use that for an off grid system >> or for longer outages. In a very brief explanation, it essentially >> bypasses any charge controlling to the batteries, and puts full Array power >> into the batteries until a relay (or phase shifting) disconnects the >> array. No three stage charging, no taper charging, no float, no temp >> compensation. Its like trying to fill a 5 gal bucket with a fire house, or >> drive a car with a throttle that's either off or at full throttle, no in >> between. The other issue is that if the batteries get low and the inverter >> shuts off, the system will not recharge, and after a couple of weeks the >> batteries will be sulfated beyond recovery. >> >> My guess is that manus that advocated this approach got into trouble from >> end users that fried expensive battery banks during longer outages. I >> would consider it the equivalent of cheap backup generators: a great backup >> system for folks that don't need it. There are probably thousands of >> those out there with happy customers and installers, because its never >> actually been used for more than a few hours, and the batteries are >> properly charged from the grid 99.8% of the time. >> >> Ray Walters >> Remote Solar >> 303 505-8760 >> >> On 9/12/18 6:11 PM, Ken Schaal wrote: >> >> https://www.youtube.com/watch?v=eyhkIfS5Z-Q >> >> >> ___ >> 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-wrenches-re-wrenches.org >> >> List-Archive: >> http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html >> >> List rules & etiquette:www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios:www.members.re-wrenches.org >> >> >> ___ >> 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-wrenches-re-wrenches.org >> >> List-Archive: >> http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html >> >> List rules & etiquette: >> www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> www.members.re-wrenches.org >> >> > > -- > *Will White* > Curriculum Developer > > > e: w...@solarenergy.org > w: www.solarenergy.org > p: 802-272-3092 > > PV Installation Professional > # 093006-34 > > *FACT: If we covered 0.33% of the earth with solar panels, we could power > the world with renewable energy.* > > Do you envision a world powered by renewable energy? Be the change > <
Re: [RE-wrenches] Trackers
These guys are new but I've heard good things: http://www.sulasindustries.com/ *Regards, * *Andrew Truitt | DRV <http://dr.ventures/>* www.dr.ventures d: 202.486.7507 NABCEP Certified PV Installation Professional ID: 032407-66 Colorado Journeyman Electrician License No.: 600132 "Don't get me wrong: I love nuclear energy! It's just that I prefer fusion to fission. And it just so happens that there's an enormous fusion reactor safely banked a few million miles from us. It delivers more than we could ever use in just about 8 minutes. And it's wireless!" ~William McDonough On Wed, Sep 5, 2018 at 9:38 PM Sindelar Solar wrote: > Bill, > > No, I'm with you on this.Given the the greatest boost (~+/- 30%) of daily > tracking is during the summer and most stand-alone applications are > winter-peak (where tracking adds at best 10-15%), seasonal water pumping is > about the only time when small-scale tracking is justified over simply > adding array. Any pumping where the source is slow enough that the length > of the day becomes an important factor, like drip irrigation or a very low > yield well or spring, is worth looking into. But that's about it in my > experience. > > Allan > > -- > > *Allan Sindelar* > al...@sindelarsolar.com > NABCEP Certified PV Installation Professional > New Mexico EE98J Journeyman Electrician > Founder (Retired), Positive Energy, Inc. > *505 780-2738 cell* > On 9/5/2018 5:53 PM, solar1onl...@charter.net wrote: > > Chris, > I thought since solar PV prices have come down (understatement), is it not > more cost effective to buy more modules than a tracker? Are there scenarios > that the above would not ring true? (As I remember, off grid water pumping > for livestock ponds may still be an exception as also, limited space.) > Please advise. > Thanks, > Bill Loesch > Solar 1 - Saint Louis Solar > 314 631 1094 > > > From: ch...@oasismontana.com > Sent: Wednesday September 5 2018 3:45:25PM > > Dear people: > > What trackers are y’all using nowadays? I have a customer (with a great > site) who’s insisting on a pair. We’ve sold Zomeworks and Array > Technologies in the past, but I know there are more offerings now. > > Thanks for the input! > > Chris Daum > > Oasis Montana Inc. > > 406-777-4309 or 4321 > > 406-777-4309 fax > > www.oasismontana.com > > ___ > 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-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette:www.re-wrenches.org/etiquette.htm > > Check out or update participant bios:www.members.re-wrenches.org > > ___ > 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-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > > ___ 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-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Cell Cracks
Spot-on Glenn. Ray - check out this doc from REC <http://aeesolar.com/wp-content/uploads/2017/01/2017DC-Microcracks-and-Solar-Modules.pdf>. Its not uncommon for there to be no measurable effect from a microcrack at first, but efficiency and safety can be significantly impacted after years of thermal cycling. Apparently the best way to detect them in the field is electroluminescence testing. Not particularly cost effective for one-off resi, but for larger systems it could make sense to test a sample. These guys <http://www.acuitypower.com/>provide in-field EL testing services and are rock stars. *Regards, * *Andrew Truitt | DRV <http://dr.ventures/>* www.dr.ventures d: 202.486.7507 NABCEP Certified PV Installation Professional ID: 032407-66 Colorado Journeyman Electrician License No.: 600132 On Tue, Aug 14, 2018 at 8:34 PM Ray wrote: > I haven't seen the actual modules, and I am not that familiar with > microfractures or snail trails either. > > Ray Walters > Remote Solar > 303 505-8760 > > On 8/14/18 7:42 PM, glenn.b...@glbcc.com wrote: > > Ray, > > Do you feel that these are different from the microfractures or snail > trails that were reported widely across the industry a couple of years ago? > > Glenn > > Sent from my 'smart' phone so please excuse spelling and typos. > > -- Original message-- > *From: *Ray > *Date: *Tue, Aug 14, 2018 10:24 AM > *To: *RE-wrenches; > *Cc: * > *Subject:*[RE-wrenches] Cell Cracks > > Hi All; > > I've had a colleague ask that I post a couple pictures of what appears > to be cracks in cells under the glass. The glass is not damaged. These > are Sun Edison modules, so apparently no warranty. Has anyone seen > this, and are these possibly dangerous (hot spots) or is this nothing to > worry about? An Infrared camera did not show any issues. > > As always your invaluable input is always appreciated. > > Thanks, > > -- > Ray Walters > Remote Solar303 505-8760 > > > ___ > List sponsored by Redwood Alliance > > List Address: RE-wrenches@lists.re-wrenches.org > <%20re-wrenc...@lists.re-wrenches.org> > > Change listserver email address & > settings:http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette:www.re-wrenches.org/etiquette.htm > > Check out or update participant bios:www.members.re-wrenches.org > > > ___ > 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-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > > ___ 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-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] 208V single-phase inverter options
Thanks gentlemen. I think that Primo is going to be the best option (thank you August!). The service is 120/208 wye so it looks like we'd connect 2 hot legs + neutral for each inverter. Been a while since I've done one of these (I think we ran into some older homes in the DC area with 208V single-phase back in the day) but as I recall so long as you have the right inverter everything else is the standard single-phase design and installation process. *Regards, * *Andrew Truitt | DRV <http://dr.ventures/>* www.dr.ventures d: 202.486.7507 NABCEP Certified PV Installation Professional ID: 032407-66 Colorado Journeyman Electrician License No.: 600132 "Don't get me wrong: I love nuclear energy! It's just that I prefer fusion to fission. And it just so happens that there's an enormous fusion reactor safely banked a few million miles from us. It delivers more than we could ever use in just about 8 minutes. And it's wireless!" ~William McDonough On Mon, Jul 16, 2018 at 9:22 PM frenergy wrote: > I recently stacked 3, SMA SB-40 inverters and combined there outputs for > 208 single phase. Their 7.7KW puts out 6,660 watts at 208, 1Ph. > > Bill > > On 7/16/2018 6:29 PM, August Goers wrote: > > Hi Andrew, > > Fronius Primo inverters go up to 15 kW 208 v single phase, but are limited > to 13750 VA output in 208 volt operation. I'm not aware of larger single > phase 208 v inverters, although it is certainly possible that they are out > there. > > > http://www.fronius.com/en-us/usa/photovoltaics/products/all-products/inverters/fronius-primo/fronius-primo-15-0-1-208-240 > > August > > > > > On Mon, Jul 16, 2018 at 6:18 PM Andrew Truitt wrote: > >> >> I'm in the hunt for a 208V single-phase inverter in the 15-30kW range for >> installation at an RV park. Various manufacturers have solutions below >> 12kW, but this project will involve multiple sites in the 30-80kW range and >> wall space is limited. Anyone ever seen this illusive animal? >> >> >> *Regards, * >> >> *Andrew Truitt | DRV <http://dr.ventures/>* >> www.dr.ventures >> d: 202.486.7507 >> >> NABCEP Certified PV Installation Professional ID: 032407-66 >> Colorado Journeyman Electrician License No.: 600132 >> >> >> >> "Don't get me wrong: I love nuclear energy! It's just that I prefer >> fusion to fission. And it just so happens that there's an enormous fusion >> reactor safely banked a few million miles from us. It delivers more than we >> could ever use in just about 8 minutes. And it's wireless!" >> >> ~William McDonough >> ___ >> 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-wrenches-re-wrenches.org >> >> List-Archive: >> http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html >> >> List rules & etiquette: >> www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> www.members.re-wrenches.org >> >> > > ___ > 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-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette:www.re-wrenches.org/etiquette.htm > > Check out or update participant bios:www.members.re-wrenches.org > > > -- > Feather River Solar Electric > Bill Battagin, Owner > 4291 Nelson St. > Taylorsville, CA 95983 > 530.284.7849 > CA Lic 874049www.frenergy.net > > > > <https://www.avast.com/sig-email?utm_medium=email_source=link_campaign=sig-email_content=emailclient> > Virus-free. > www.avast.com > <https://www.avast.com/sig-email?utm_medium=email_source=link_campaign=sig-email_content=emailclient> > <#m_1571775418369933228_m_-2621679594857588497_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> > ___ > 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-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > > ___ 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-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
[RE-wrenches] 208V single-phase inverter options
I'm in the hunt for a 208V single-phase inverter in the 15-30kW range for installation at an RV park. Various manufacturers have solutions below 12kW, but this project will involve multiple sites in the 30-80kW range and wall space is limited. Anyone ever seen this illusive animal? *Regards, * *Andrew Truitt | DRV <http://dr.ventures/>* www.dr.ventures d: 202.486.7507 NABCEP Certified PV Installation Professional ID: 032407-66 Colorado Journeyman Electrician License No.: 600132 "Don't get me wrong: I love nuclear energy! It's just that I prefer fusion to fission. And it just so happens that there's an enormous fusion reactor safely banked a few million miles from us. It delivers more than we could ever use in just about 8 minutes. And it's wireless!" ~William McDonough ___ 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-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
[RE-wrenches] Snow retention / removal for Lumos carports
Wrenches, We're looking at a Lumos carport project in NJ and I'm wondering if anyone has any thoughts / recommendations / experience with how to handle snow on carport structures. The fact that Lumos modules are frameless adds an unfortunate wrinkle since no existing clamp-type solutions (that I've found) will work. After hearing about some carports that have toppled over under heavy snow loads we're considering just contracting with a snow removal service, but that would be costly. Any input would be much appreciated. Regards, *Andrew Truitt* Director of Emerging Technologies | *DIVIDEND* *SOLAR* mobile202-486-7507 <(202)%20486-7507> online *www.dividendsolar.com <http://www.dividendsolar.com/>* NABCEP Certified PV Installation Professional ID: 032407-66 Colorado Journeyman Electrician License No.: 600132 "Don't get me wrong: I love nuclear energy! It's just that I prefer fusion to fission. And it just so happens that there's an enormous fusion reactor safely banked a few million miles from us. It delivers more than we could ever use in just about 8 minutes. And it's wireless!" ~William McDonough ___ 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-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Roof layout and proposal tools
Carl - Check out the Software section of this article <http://www.solarpowerworldonline.com/2015-top-solar-products/2015-top-solar-project-management-products/> for a decent overview of options. I think Helioscope and Aurora have the best combination of features and usability. - Andrew "Don't get me wrong: I love nuclear energy! It's just that I prefer fusion to fission. And it just so happens that there's an enormous fusion reactor safely banked a few million miles from us. It delivers more than we could ever use in just about 8 minutes. And it's wireless!" ~William McDonough On Mon, May 8, 2017 at 10:52 PM, James Rudolph <jamesrudolp...@gmail.com> wrote: > Aloha Carl, > Have you seen or tried Helioscope? > > https://www.helioscope.com/ > > > *James B. Rudolph* > > *Independent** Energy Systems* > > *ES Electrician ES-10816* > > *NABCEP Certified PV Installer # 091209-155* > > > *c. 808.476.6754 <(808)%20476-6754>* > > > > > > > On Mon, May 8, 2017 at 11:53 AM, Carl Adams <swingjun...@gmail.com> wrote: > >> Hello Wrenches, >> >> I've been using ModSolar for preliminary estimated and roof layout. >> While it works OK, it can be a bit kwirky at times and the aerial imagery >> is at times less than ideal. I'm looking to see what else is out there? >> >> Carl Adams >> SunRock Solar >> NABCEP Certified PV Installer >> >> ___ >> 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-wrenches-re-wrenches.org >> >> List-Archive: http://www.mail-archive.com/re >> -wrenc...@lists.re-wrenches.org/maillist.html >> >> List rules & etiquette: >> www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> www.members.re-wrenches.org >> >> >> > > ___ > 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-wrenches-re-wrenches.org > > List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches. > org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > > > ___ 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-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Aquion Batteries
FYI, Aquion just went BK <https://www.greentechmedia.com/articles/read/Aquion-the-Bill-Gates-and-Kleiner-Perkins-Funded-Advanced-Battery-Startup> . - Andrew "Don't get me wrong: I love nuclear energy! It's just that I prefer fusion to fission. And it just so happens that there's an enormous fusion reactor safely banked a few million miles from us. It delivers more than we could ever use in just about 8 minutes. And it's wireless!" ~William McDonough On Wed, Mar 8, 2017 at 12:57 PM, John Blittersdorf < john.blittersd...@gmail.com> wrote: > Drake, > I just did my first Aquion Install on an off-grid second home. It is > a 24V single VFX3524. 10 Aspen 24 volt stacks. No one has been living > there since I installed it but at least the generator stopped running 2 or > 3 times a day just to maintain the heating system. The generator hasn't run > at all (since the first charge) the 10 days since we installed it. I am > waiting for the owners to come up from NYC in early April to give it the > test. It will get hit hard so we should know right away how it will > respond. I have the system monitored on OpticsRE so we will be able to see > what is happening. So far the batteries have stayed between 24.6 and > 28.6. I, too, am anxious to see what happens when we are running with the > inverter set for the lowest setting which I think is around 39 or 40 > volts. It will be great to have the OpticsRE control to play around with > the AGS settings to find the most efficient settings in regard to generator > run time. Our #1 goal now is to minimize gen time. > > John Blittersdorf > Solar Guru > Rob Stubbins Solar > > On Wed, Mar 8, 2017 at 12:55 PM, Martin Herzfeld <findso...@herzfeld.org> > wrote: > >> Has anyone worked with them with a Sunny Island? Space is not an issue >> for this client. >> >> Martin Herzfeld, IREC Certified Master Trainer ™ for PV Installation >> Professional #IREC 10037 >> California Solar Contractor License #00833782 C46, D56, D31, C-7 >> Solar, Trenching, Pole Installation & Maintenance, Instrumentation >> >> UL Certified PV Installer #17, OSHA 30 >> OSHA-Authorized Construction Trainer #C0068034 >> CompTIA Certified Technical Classroom Trainer (CTT+) #T3NSZCNBBKB4QTQG >> >> Registered NABCEP Continuing Education (CE) Provider >> >> >> On Jul 20, 2016 2:00 PM, "Jerry Shafer" <jerrysgarag...@gmail.com> wrote: >> >> We had a customer request them but once we found out how many it would >> take, he decided on the deka unigee instead. l dont like running my OB's at >> such a low voltage as they seem to get hotter due to the higher current. >> Some of our other product lines don't even reccomend aquions due to that >> low voltage, suggest asking your inverter manufacture too. >> >> On Jul 20, 2016 10:52 AM, "Drake" <drake.chamber...@redwoodalliance.org> >> wrote: >> >>> Hello Wrenches, >>> >>> I have a client who is going to take the plunge and buy a set of Aquion >>> Batteries. They look pretty good on paper, but I'm not sure how well an >>> inverter would function at the 40 V minimum. Does anyone have experience to >>> recommend them or warn against using them? >>> >>> Thanks, >>> >>> Drake >>> >>> Drake Chamberlin >>> >>> >>> >>> >>> >>> *Athens Electric LLC OH License 44810 CO License 3773 NABCEP Certified >>> Solar PV 740-448-7328 <740-448-7328> *http://athens-electric.com/ >>> >>> ___ >>> 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-wrenches-re-wrenches.org >>> >>> List-Archive: http://www.mail-archive.com/re >>> -wrenc...@lists.re-wrenches.org/maillist.html >>> >>> List rules & etiquette: >>> www.re-wrenches.org/etiquette.htm >>> >>> Check out or update participant bios: >>> www.members.re-wrenches.org >>> >>> >>> >> ___ >> 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-wrenches-re-wrenches.org >> >> List-Archive: http://www.mail-archive.com/
Re: [RE-wrenches] Whole house energy moniters
Whisker Labs <https://www.whiskerlabs.com/solutions.html> just announced a product that monitors individual loads / sources through digital disaggregation (like Sense) but using a sensor that adheres to the main panel, eliminating the need to remove the deadfront to attached CTs. Pretty crazy. Connectivity is through the existing network. Other CT-based options beyond what's been mentioned include neurio <http://neur.io/> (existing network), the Locus LGate 101e <http://locusenergy.com/solutions/residential> (cellular or existing network), TED <http://www.theenergydetective.com/prohome> (existing network), and the Enphase Envoy-S <https://enphase.com/en-us/blog/enphase-brings-intelligent-control-energy-management-new-envoy-s> (which can monitor non-enphase systems and is cellular). There's another product just now coming to the US from Australia called CarbonTrack <http://www.carbontrack.com.au/> (cellular). Whole home + PV energy monitoring (CTs), zigbee / z-wave 2-way communications with smarthome devices, communicates with energy storage... basically an energy-focused smarthome hub. Lots going on in this space! - Andrew "Don't get me wrong: I love nuclear energy! It's just that I prefer fusion to fission. And it just so happens that there's an enormous fusion reactor safely banked a few million miles from us. It delivers more than we could ever use in just about 8 minutes. And it's wireless!" ~William McDonough On Mon, Dec 5, 2016 at 8:43 AM, Philip Boutelle <philboute...@gmail.com> wrote: > This product by Sense is similar to CURB (or eGauge > <http://www.egauge.net/>, or other multiple-CT devices), but you install > a single set of CTs on the main feeds (plus on on the solar if you have > it). The device then 'learns the electronic signature' of the loads in the > house to disaggregate what is being used. I haven't tried one yet. > https://sense.com/ > > I have previously installed a beta device from Verdegris, which does the > same thing (single CT set) but is geared for commercial customers, whereas > Sense is residential. > http://verdigris.co/ > > -Phil > > > -- > > *Phil Boutelle,* *PE, CEM* | Energy Engineer > philboute...@gmail.com | M (831) 359-5268 <%28831%29%20359-5268> > > > > > > > On Mon, Dec 5, 2016 at 6:01 AM, William Dorsett <wmdors...@sbcglobal.net> > wrote: > >> There is a new one mentioned in SolarPro, from a company called CURB >> http://energycurb.com/) . CURB gives CT’s for eighteen different >> circuits so over time you can understand how each load is performing. One >> of our families had a broken pump shaft so it never registered that there >> was more water in the pressure tank, so it ran for weeks. The site mentions >> that they will be able to predict appliance failure from historical data. >> And it can monitor overall PV generation. It looks very promising though >> from the reviews it may not yet allow a download of historical data. It >> would be great if in addition to logging data, it would allow active >> management of interlocking relays to control demand charges. There is >> another product called Energy Sentry (http://energysentry.com/ ) , that >> allows you to prioritize your large loads so they aren’t allowed to all >> come on at the same time. As more utilities add Time of Use and demand >> charges this will be a really valuable piece of hardware. For installers >> this will become just another value added service. These two companies >> should merge. >> >> >> >> Bill Dorsett >> >> Manhattan, KS >> >> >> >> *From:* RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] *On >> Behalf Of *Jerry Shafer >> *Sent:* Sunday, December 04, 2016 2:42 AM >> *To:* Peter Talmage; RE-wrenches >> *Subject:* Re: [RE-wrenches] Whole house energy moniters >> >> >> >> Peter >> >> is this system CT based, can you turn around the CT's as when in most >> cases installation says to install directional and for solar they get >> installed backwards instead. >> Jerry >> >> >> >> On Sat, Dec 3, 2016 at 2:25 PM, Peter Talmage <ptalm...@yahoo.com> wrote: >> >> Does anyone have experience with whole house energy monitors that work >> with interfaced PV arrays. It seems most just deal with the array output as >> a load . >> >> >> >> Thanks. Peter Talmage >> >> >> ___ >> List sponsored by Redwood Alliance >> >> List Address: RE-wrenches@lists.re-wrenches.org >> >> Change listserver email address & settin
[RE-wrenches] In search of an awesome PV shade structure
Good afternoon wrenches! Does anyone know of a custom fabricator who might be able to manufacture a shade structure that meets the following criteria for a project in NJ? - fully protects anything underneath from the elements, preferably with some type of weatherproof membrane under the array - incorporates a gutter (or similar) to address runoff and snow sloughing - can support ~40kW of PV in a footprint approximating a square, with columns at the 4 corners - aesthetically pleasing Thanks in advance! - Andrew "Don't get me wrong: I love nuclear energy! It's just that I prefer fusion to fission. And it just so happens that there's an enormous fusion reactor safely banked a few million miles from us. It delivers more than we could ever use in just about 8 minutes. And it's wireless!" ~William McDonough ___ 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-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Enphase Support Non-Responsive
Is anyone familiar with the new Kaco Ultraverter <http://kaco-newenergy.com/lounge/ultraverters/>? Its a microinverter with series-connected string architecture *on the AC side*! Pretty crazy. They say the lower voltages (nothing over 60V on the AC or DC side of each unit) reduces stress on components and allows for greater durability. Rapid Shutdown compliant for 2014 and 2017. 97.5% CEC efficiency. Pricing targeted between SolarEdge and Enphase, but willing to get very aggressive at rollout. As 100 year old German company, Kaco's 25-year warranty may offer a little more value compared with some other MLPE manufacturers. The biggest downside that I can see, assuming it works like its supposed to, is the 8-12 inverter-per-AC-string requirement. I'd be very interested to hear this esteemed group's thoughts on this unusual new microinverter product! For a brighter energy future, Andrew Truitt Principal Truitt Renewable Energy Consulting, LLC (202) 486-7507 LinkedIn Profile <https://www.linkedin.com/in/andrewtruitt> Company Website <http://truittreconsulting.weebly.com/> NABCEP Certified PV Installation Professional ID: 032407-66 Colorado Journeyman Electrician License No.: 600132 <%28202%29%20486-7507> [image: 24 copy.jpg] "Don't get me wrong: I love nuclear energy! It's just that I prefer fusion to fission. And it just so happens that there's an enormous fusion reactor safely banked a few million miles from us. It delivers more than we could ever use in just about 8 minutes. And it's wireless!" ~William McDonough On Fri, Aug 5, 2016 at 8:31 AM, William Dorsett <wmdors...@sbcglobal.net> wrote: > We are finding the same problem. Usually it is a problem with an untypical > Envoy location (remote barn with a tin roof or a bad cable modem > connection) > or communications issues between the inverters and the Envoy. Nearly all > our > systems are operating as expected, and I think the company has good > hardware > and is otherwise well put together. Customer responsiveness falls way > short. Their service people are always quite helpful when they do get back > to us. There appears to be a route to remote troubleshooting but it > certainly not publicized well. Can anyone tell installers how to connect > with a remote troubleshooting URL? > > Thanks all. > > Bill Dorsett > Manhattan, KS > > -Original Message- > From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] On > Behalf Of penobscotso...@midmaine.com > Sent: Friday, August 05, 2016 8:38 AM > To: RE-wrenches > Subject: Re: [RE-wrenches] Enphase Support Non-Responsive > > Just to renew this line of conversation, I have been waiting for several > call backs form Enphase, with no results, for the past three weeks. I also > have warranty claims that go back four months+ that have not been > fulfilled. > I will not sell any more Enphase, at all, until they resolve these > communication and warranty issues. > > Daryl DeJoy > NABCEP Certified PV Installer > Penobscot Solar Design > > > > > > It seems like we are talking about inverter and module customer > > service (good and bad) a lot lately. > > > > Has anyone else noticed that Enphase seems to have stopped responding > > to tickets submitted via their website? Hold times are unacceptable, > > so I gave up on that, but nobody gets back to you when you try to > > contact them via their web form for weeks, even about an existing RMA > > or ticket, and they no longer let you update tickets by email. They > > are very helpful and competent if you get them on the phone, but who > > has time for that?! > > > > I'm also waiting an unacceptable amount of time on a major module > > manufacturer warranty claim right now. I'd love to see Home Power or > > someone do a story on manufacturer responsiveness to dealers. Things > > are generally going down hill it seems. > > > > 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-wrenches-re-wrenches.org > > > > List-Archive: > > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist > > .html > > > > List rules & etiquette: > > www.re-wrenches.org/etiquette.htm > > > > Check out or update participant bios: > > www.members.re-wrenches.org > > > > > > > ___ > List sponsored by Redwood Alliance > &
Re: [RE-wrenches] Successor to SunEye 210?
I think the fact that no manufacturer has jumped in to fill the void left by the SunEye is an indicator that remote shade analysis tools like Aurora (my favorite) are the likely path forward for the industry. These tools can typically make it possible to generate a full rendering and shade analysis in less than 15 minutes for the experienced user, without ever having to get on a roof. NREL did some validation studies (here's Aurora's <http://www.nrel.gov/docs/fy16osti/65558.pdf>) and found a few tools to produce results as good or better than the SunEye, which makes sense to me since the analysis is based on an integral over the whole roof surface as opposed to a few point measurements. Of course the "garbage in, garbage out" principle is very applicable. For a brighter energy future, Andrew Truitt Principal Truitt Renewable Energy Consulting, LLC (202) 486-7507 LinkedIn Profile <https://www.linkedin.com/in/andrewtruitt> Company Website <http://truittreconsulting.weebly.com/> NABCEP Certified PV Installation Professional ID: 032407-66 Colorado Journeyman Electrician License No.: 600132 <%28202%29%20486-7507> [image: 24 copy.jpg] "Don't get me wrong: I love nuclear energy! It's just that I prefer fusion to fission. And it just so happens that there's an enormous fusion reactor safely banked a few million miles from us. It delivers more than we could ever use in just about 8 minutes. And it's wireless!" ~William McDonough On Mon, Mar 7, 2016 at 12:56 PM, Dan Fink <danbo...@gmail.com> wrote: > Hi Peter; > My understanding is that the only thing left of Solmetric at Vivint is the > PV Analyzer, and though they stated a year ago that they were going to > "streamline" the PV sales process so that the site survey could be > accomplished on the same day as the sale, I've seen nothing else from them. > Very happy that I've kept the heavily-modded Solar Pathfinder that I > bought in 1994, with a real tripod adaptor. > For quicky site surveys and semi-interested customers, I use an Android > smartphone app, which is pretty accurate IF you build a tripod adaptor for > the phone. > I'm surprised someone hasn't leapt in to claim this market share. Not all > of us are big-city no-battery PV installers who can use the new Google tool > that estimates tree heights. My class experiments with this were a > bustit only sorta kinda works. > Ground truth is the only thing I trust. Maybe I should just start building > and marketing my Pathfinder and smartphone tripod adaptors. > > > Dan Fink > Adjunct Professor, Ecotech Institute > IREC Certified Instructor™ for: > ~ PV Installation Professional > ~ Small Wind Installer > Executive Director, Buckville Energy > NABCEP Accredited Continuing Education Providers™ > 970.672.4342 > > > > On Mon, Mar 7, 2016 at 10:27 AM, Peter Parrish < > peter.parr...@calsolareng.com> wrote: > >> Can’t seem to find a SunEye product on the Solmetric website. Is it >> tucked away on the Vivent site or somewhere else hard-to-find? >> >> >> >> Peter T. Parrish, Ph.D. >> >> President, SolarGnosis >> >> 1107 Fair Oaks Ave. >> >> Suite 351 >> >> South Pasadena, CA 91030 >> >> (323) 839-6108 >> >> peter...@pobox.com >> >> ___ >> 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-wrenches-re-wrenches.org >> >> List-Archive: >> http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html >> >> List rules & etiquette: >> www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> www.members.re-wrenches.org >> >> >> > > ___ > 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-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > > > ___ 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-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Drawing Programs
Aaron - There are a number of cool PV-specific tools that have GIS-aided rendering functionality along with features like shade analysis, production estimation, and automated line diagram and BoM generation. My 2 favorites are Helioscope and Aurora. For a brighter energy future, Andrew Truitt Principal Truitt Renewable Energy Consulting, LLC (202) 486-7507 LinkedIn Profile <https://www.linkedin.com/in/andrewtruitt> Company Website <http://truittreconsulting.weebly.com/> NABCEP Certified PV Installation Professional ID: 032407-66 Colorado Journeyman Electrician License No.: 600132 <%28202%29%20486-7507> [image: 24 copy.jpg] "Don't get me wrong: I love nuclear energy! It's just that I prefer fusion to fission. And it just so happens that there's an enormous fusion reactor safely banked a few million miles from us. It delivers more than we could ever use in just about 8 minutes. And it's wireless!" ~William McDonough On Mon, Jan 11, 2016 at 9:37 AM, Aaron Mandelkorn <reoso...@gmail.com> wrote: > Hi all, Just wondering what drawing programs you all use (for windows). > I have been a happy user of MacDraft for years but have recently switched > back over to windows. AutoCAD is way more complex for what I need. All I > draw are simple 3 lines for permitting, site plans, and roof layouts. No > need for complicated tools, just the ability to draw in scale. Any > thoughts? > > > Aaron Mandelkorn > Owner/Solar Specialist > Renewable Energy Outfitters > www.reosolar.com > www.offgriddepot.biz > 970-596-3744 > 719-221-5249 > reoso...@gmail.com > > ___ > 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-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > > > ___ 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-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Solar edge
They might be referring to the alleged upcoming release of a SolarEdge / Tesla Powerwall integration that is currently in the works. I think it's supposed to leverage the similar SE output and Powerwall input voltages. - Andrew Truitt Please excuse brevity and typos, this message was typed on tiny keys. > On Nov 5, 2015, at 7:52 PM, Jay <jay.pe...@gmail.com> wrote: > >> Hi all > > Solar edge doesn't make any optimizers for battery based systems, right? Just > their standard string grid tie ones. > > I've got a client who's telling me they do. > > Just checking > > Thanks > > Jay > > Peltz power. > ___ > 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-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > ___ 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-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
[RE-wrenches] Conduit across walkways
Wrenches - What is your take on conduit across walkways on commercial rooftops? [image: Inline image 1] The 2012 IFC says The DC combiner boxes shall be located such that conduit runs are minimized in the pathways between arrays. so that would indicate that this is acceptable. Is there anything in the NEC or OSHA that requires some type of step or protection for conduits in access walkways? I am concerned with a scenario where the conduit is covered with snow and becomes an even bigger trip hazard and potential source of damage to the DC conductors. For a brighter energy future, Andrew Truitt Principal Truitt Renewable Energy Consulting, LLC (202) 486-7507 LinkedIn Profile https://tracking.cirrusinsight.com/079df0b1-ab1c-4515-b1e0-d7a6f92238bd/linkedin-com-in-andrewtruitt Company Website https://tracking.cirrusinsight.com/079df0b1-ab1c-4515-b1e0-d7a6f92238bd/truittreconsulting-weebly-com NABCEP Certified PV Installation Professional ID: 032407-66 Colorado Journeyman Electrician License No.: 600132 %28202%29%20486-7507 [image: 24 copy.jpg] Don't get me wrong: I love nuclear energy! It's just that I prefer fusion to fission. And it just so happens that there's an enormous fusion reactor safely banked a few million miles from us. It delivers more than we could ever use in just about 8 minutes. And it's wireless! ~William McDonough ___ 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-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Warranty replacements
Jason et al - Next Phase Solar http://nextphasesolar.com/ is currently working to address this very issue. NPS will roll a truck to handle service issues (residential or commercial) so installers can focus on installing. Adam Burstein (NPS Founder and CEO) is a long-time industry veteran going back to the PowerLight days and has built a very competent service / OM team. They have a pretty broad footprint but they aren't everywhere yet, though I know he is interested in expanding into new markets if the demand is there. For a brighter energy future, Andrew Truitt Principal Truitt Renewable Energy Consulting, LLC (202) 486-7507 LinkedIn Profile https://www.linkedin.com/in/andrewtruitt Company Website http://truittreconsulting.weebly.com/ NABCEP Certified PV Installation Professional ID: 032407-66 Colorado Journeyman Electrician License No.: 600132 %28202%29%20486-7507 [image: 24 copy.jpg] Don't get me wrong: I love nuclear energy! It's just that I prefer fusion to fission. And it just so happens that there's an enormous fusion reactor safely banked a few million miles from us. It delivers more than we could ever use in just about 8 minutes. And it's wireless! ~William McDonough On Thu, Oct 16, 2014 at 7:06 AM, Jason Szumlanski ja...@szumlanski.com wrote: Frankly, our issue is the UNsteady stream of service issues with both string and microinverters. There isn't enough warranty or non-warranty service work and it is too unpredictable to justify a dedicated PV service department with dedicated personnel that can run economically. As a result, we have to pull install crews from active installations to handle these issues, which is neither economical nor good for our installation business. As much as PV service is an annoyance for system owners, it's a huge distraction for a small dealer. In fact, one competitor refuses to service the systems they install. We have been picking up service business as a result (we have a reputation for doing so and manufacturers call us), but it's still not steady enough to handle well. Jason Szumlanski On Oct 15, 2014 4:41 PM, Rebecca Lundberg rebecca.lundb...@powerfullygreen.com wrote: We are starting to see a fairly steady stream of various solar electronics needing replacement under warranty, including micro-inverters, AC modules (microinverter failing), and even modules with an integrated DC electronic component failing to work from the get go. I work with residential customers and care about doing right by them, and of course they expect that their warrantied part will be replaced at no cost to them, they have already invested a lot in their solar project. Sometimes the manufacturer has a stipend which at least offsets the cost of gas but does not cover time to travel to the site and do the replacement, but I have recently come across several manufacturers who do not give any stipend at all and I am surprised at that. Replacing a module in the middle of a pitched roof is no small feat, and getting to micro inverters on a steep pitch is always a challenge. As the code requires more safety features down to the module level, I suspect we will see more and more of this, and the electronics are no longer at ground level and easily accessible. What ideas do you have about how to deal with this? Must we have an O and M contract with every customer given current product choices? A similar question relates to a particular module having issues with delamination and failed diodes. We have been called out to several sites where this has caused the inverter to sense a fault, and testing showed the module leaking voltage to ground. Who is responsible for getting the inverter up and running when it clearly stems from the module? I suspect the module manufacturer's warranty legally exempts them from responsibility, but again it is reasonable for the customer to expect a warrantied system to be up and running. Thoughts from the field? Sincerely, Rebecca Lundberg -- Rebecca Lundberg NABCEP Certified Solar PV Installer ® Owner/President *Powerfully Green*® 763.438.1976 | rebecca.lundb...@powerfullygreen.com Powered by the Sun! ___ 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-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org ___ 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-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re
[RE-wrenches] NEC Plus
Wrenches - After being unable to log into my favorite NEC research tool, I just found this on the Mike Holt Forum: NFPA has decided to stop offering NECPlus yearly subscriptions, because the 2014 NEC will not be going into NECPlus. The last day of access to NECPlus will be on February 28, 2014. There will be no subscription replacement product, however there will be an enhanced eBook product for the 2014 NEC - with changes (from the 2011 NEC) identified. This will be a one-time purchase product (not a subscription). The 2014 NEC enhanced eBook will provide our customers with more mobility (via use on tablets and smartphones) and it will include features such as bookmarking, user notes, and highlighting options. *NEC Connect* is our new online resource and community for all things related to the National Electrical Code. Learn about the latest in electrical safety, wiring, guidelines, and equipment, along with upcoming electrical code updates, tips and the latest social updates from the NFPA. NEC Connect is your one-stop shop for residential and industrial electrical safety, whether you are an installer, designer, inspector or policy maker. Join fellow contractors and engineers, and sample the latest video content, articles and more from industry experts. Does anyone have any experience with this eBook? RIP NECPlus. FYI, though the NFPA never really advertised it they did develop a PV-specific NEC app product called PV-NEC http://pvnec.org. It contains inspection and installation checklists (Based on NABCEP and Bill Brooks documentation), lookup table tools, a project management function, and 2 versions each of the 2008 and 2011 NEC - a full version and a PV-specific version. They were going to roll it out at SPI 2013 but changed their mind. They were also going to update it to 2014 but unfortunately changed their mind on that as well... For a brighter energy future, Andrew Truitt Principal Truitt Renewable Energy Consulting, LLC (202) 486-7507 LinkedIn Profile http://www.linkedin.com/pub/andrew-truitt/8/622/713 Company Website http://truittreconsulting.weebly.com/ NABCEP Certified PV Installation Professional ID: 032407-66 Colorado Journeyman Electrician License No.: 600132 %28202%29%20486-7507 [image: 24 copy.jpg] Don't get me wrong: I love nuclear energy! It's just that I prefer fusion to fission. And it just so happens that there's an enormous fusion reactor safely banked a few million miles from us. It delivers more than we could ever use in just about 8 minutes. And it's wireless! ~William McDonough inline: image001.jpg___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
[RE-wrenches] EGC ground impedance
Wrenches - What do you consider to be a safe ground impedance for a PV array equipment grounding conductor? NEC2011 250.53(A) says that if the impedance between the grounding *electrode* and earth is less than 25 ohms then no supplementary grounding electrode is needed, but I'm not clear on what that means for the ground impedance measurement within the array. For example, I am inspecting a ballasted landfill system (i.e. no penetrating the earth allowed - just a UFER at the equipment pad) where the ground impedance at the GEC is very low (1 Ohm), but the array EGCs are showing ground impedances of between 500 and 1000 Ohms. The EGCs (#4) are connected to Cope cable trays, which are in turn connected to the inverter grounding bar via #4 bonding jumpers. The cable tray is grounded per manufacturer specs (large bonding jumpers at each joint), but the runs can be quite long (300'+) with many connections, though nothing appears to be loose. I intend to recommend that continuous conductors be installed to reduce array ground impedance, but any input on the issue would be very much appreciated. For a brighter energy future, Andrew Truitt Principal Truitt Renewable Energy Consulting, LLC (202) 486-7507 LinkedIn Profile http://www.linkedin.com/pub/andrew-truitt/8/622/713 Company Website http://truittreconsulting.weebly.com/ NABCEP Certified PV Installation Professional ID: 032407-66 Colorado Journeyman Electrician License No.: 600132 %28202%29%20486-7507 [image: 24 copy.jpg] Don't get me wrong: I love nuclear energy! It's just that I prefer fusion to fission. And it just so happens that there's an enormous fusion reactor safely banked a few million miles from us. It delivers more than we could ever use in just about 8 minutes. And it's wireless! ~William McDonough image001.jpg___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
[RE-wrenches] Sunlight Resistant THWN-2
Wrenches - Is anyone familiar with sunlight resistant THWN-2? I'm inspecting a groundmount on a Landfill where all PV Output Circuit wiring is in exposed cable tray (since they can't dig) and they are using SouthWire SIMpull sunlight resistant THWN-2 conductors. NEC2011 690.31(B) specifies USE-2 or PV Wire for Source Circuit wiring and module interconnection, but doesn't address Output Circuit wiring. Here are the specs for the wire types used: http://www.southwire.com/products/SIMpullAluminumT90.htm http://www.southwire.com/products/SIMpullTHHNCableAlumflexConductors.htm Is this legit? For a brighter energy future, Andrew Truitt Principal Truitt Renewable Energy Consulting, LLC (202) 486-7507 LinkedIn Profile http://www.linkedin.com/pub/andrew-truitt/8/622/713 Company Website http://truittreconsulting.weebly.com/ NABCEP Certified PV Installation Professional ID: 032407-66 Colorado Journeyman Electrician License No.: 600132 %28202%29%20486-7507 [image: 24 copy.jpg] Don't get me wrong: I love nuclear energy! It's just that I prefer fusion to fission. And it just so happens that there's an enormous fusion reactor safely banked a few million miles from us. It delivers more than we could ever use in just about 8 minutes. And it's wireless! ~William McDonough image001.jpg___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
[RE-wrenches] Off-grid in Tanzania
Wrenches - I am working with Lee Bristol and Ray Walters on 20 off-grid PV systems in Tanzania at various types of remote health care facilities. There will be 3 system offerings: 2, 4, and 6 kW, all 230V, 50Hz. We are currently considering the following issues and would appreciate input: - *AC coupled SMA system vs. DC coupled Outback/Midnite system*: We have had positive experiences with Sunny Boy / Sunny Island systems in GT w/ battery back-up applications and we like the SMA production monitoring (more on that later), but we are not sure how appropriate the system is for off-grid. Cost is a consideration, as well as energy harvest, simplicity for in-county technicians, future system expansion, battery SOC remote monitoring, integration of generators, running power to multiple buildings, inverter over-sizing to increase equipment lifetime, reliability, battery over/under-charging prevention, ease of use for the customer, surge capability, and programable load shedding. We have had numerous internal discussions about this particular decision and would appreciate additional viewpoints. - *Ground mount vs. Pole mount*: The roofs at the sites are far from ideal in both construction and solar access so we are planning to locate all the arrays on the ground. Soil types and slopes vary. Manual labor will be readily available but heavy equipment will be hard to come by. We would like to have a standard, replicable system which might be more achievable with a pole mount (e.g. [8] 250W modules per pole for 2kW; 1, 2, or 3 poles per system), and poles might be easier to have pre-installed before we arrive (e.g. you can't get the orientation wrong; less spacing measurements to consider), but the cost difference is significant (about $0.40/watt for S-flex ground mount vs. $1.05/watt for DPW TPM all in). The pole mount would be adjustable (east/west to account for micro-climate variations, north/south for seasonal adjustments), but how much of a value does that add at 10 degrees south latitude? A ground mount could be ballasted which could be a big benefit in some locations. - *Monitoring options*: This is a tough one. Obviously there is not robust internet access so we are looking at cell modems for data transmission. Does anyone have a recommendation for a 3rd party off-grid full system remote monitoring provider? Pentametric is an option - anyone have experience with the on-line interface or remote monitoring reliability? All the OEMs have monitoring options for production and battery SOC, but we want to have an additional system to compare data and provide redundancy. Clearly there are many more factors that go into these decisions than I have conveyed here, but we are just hoping to get some thoughts on the issues from the extensive off-grid knowledge base on this list, particularly from anyone with experience in Africa. Thanks in advance! For a brighter energy future, Andrew Truitt Principal Truitt Renewable Energy Consulting, LLC (202) 486-7507 LinkedIn Profile http://www.linkedin.com/pub/andrew-truitt/8/622/713 Company Website http://truittreconsulting.weebly.com/ NABCEP Certified PV Installation Professional ID: 032407-66 Colorado Journeyman Electrician License No.: 600132 %28202%29%20486-7507 [image: 24 copy.jpg] Don't get me wrong: I love nuclear energy! It's just that I prefer fusion to fission. And it just so happens that there's an enormous fusion reactor safely banked a few million miles from us. It delivers more than we could ever use in just about 8 minutes. And it's wireless! ~William McDonough image001.jpg___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Who has the best overall solar racking solution?
Zep Solar has a nice product for sloped roofs, particularly asphalt shingle. They have 15 or so module manufacturers making panels that are Zep compatible. The layout takes a little more time and shingles do occasionally need to be cut, but the lack of rail makes for a very smooth and very clean looking array installation. - Andrew Sent from my iPhone On Sep 11, 2013, at 1:34 PM, Larry Crutcher, Starlight Solar Power Systems la...@starlightsolar.com wrote: Back in the 1980's we used a company called Baird (www.bairdmounts.com) to engineer NPR mounts for satellite communication antennas. I have used many of their products for antennas up to 5 meters and never a failure or problem. I have not used their mounts for PV solar but I expect their quality has endured. Larry On Sep 10, 2013, at 3:11 PM, Jay Peltz j...@asis.com wrote: Sub question/ Best ballasted flat roof rack? Jay Peltz power Sent from my iPhone On Sep 10, 2013, at 1:04 PM, James Rudolph jamesrudolp...@gmail.com wrote: Greetings Fellow Wrenchies, With all the racking options out there today, are there any stand outs in terms of quality and installation time. We are in the process of evaluating our racking system and with all the options its a little mind boggeling. Mahalo in advance! James B Rudolph Heleakala Solar Director of Construction NABCEP Certified PV Installer Licensed ES Electrician ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] double insulated wire
I have also seen the color convention that Ray enumerated becoming the standard. The one variation (which I like) is to use the following for the positively grounded legs of a bi-polar system: Black = negative; GREY = positive This can help prevent confusion between the two different grounded conductors. - Andrew Sent from my iPhone On Jun 28, 2013, at 12:54 PM, Ray Walters r...@solarray.com wrote: The convention of red for positive and black for negative is not just automotive. It is also used by all battery based inverter manus, all battery companies, and all multimeters. John Wiles also agrees; red = positive, black = negative for ungrounded systems red = positive, white = negative for negative grounded systems white = positive, black = negative for pos grounded systems. I take it a step further, and use white label tape with red lettering that says + positive ground + , because I've seen so many problems with positive grounded systems, and people not getting polarity correct. All of this is NEC compliant, and follows standard conventions. Make it easy on yourself and your journeymen on a hot roof, and have your color coding match their multimeter. You might save an inverter or even a life. R.Ray Walters CTO, Solarray, Inc Nabcep Certified PV Installer, Licensed Master Electrician Solar Design Engineer 303 505-8760 On 6/28/2013 12:09 PM, Allan Sindelar wrote: On 6/28/2013 11:47 AM, a...@aramsolar.com wrote: And of course Red for positive and black for negative. Most building departments have not pick up on this yet. But they will. Aram Where does of course Red for positive and black for negative come from, please? I only know it as an automotive standard that has often caused confusion when used by DIY offgridders in years past, as black thus could represent either positive or negative in a DC conductor pair. Is there yet a convention for ungrounded arrays? While red and black are technically correct as ungrounded current-carrying conductors, use of this color convention could cause as much confusion as resolve it in the future. How about black and black or for that matter yellow and orange (if supplied by manufacturers) for ungrounded arrays? Thanks, Allan Allan Sindelar al...@positiveenergysolar.com NABCEP Certified PV Installation Professional NABCEP Certified Technical Sales Professional New Mexico EE98J Journeyman Electrician Founder and Chief Technology Officer Positive Energy, Inc., a Certified B CorporationTM 3209 Richards Lane Santa Fe, New Mexico 87507 505 424-1112 office 780-2738 cell www.positiveenergysolar.com ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
[RE-wrenches] Thermal imaging
Wrenches - I am considering the purchase of a thermal imaging camera for PV system commissioning applications. Prices seem to range from $1,000 to $10,000+. Primary manufacturers seem to be Fluke and Flir, with Extech, Ideal and Milwaukee offering a few products as well. It seems to me that the key factors to consider are temperature range, thermal sensitivity, screen resolution, screen size, battery life, type of image capture and price. Does anyone have experience with using thermal imaging to identify temperature irregularities in modules and/or electrical equipment? What temperature range, thermal sensitivity, and screen resolution is needed for both/either of these tasks? What have been the key factors/specifications in terms of ergonomics and functionality? Any preferences in terms of manufacturer? For a brighter energy future, Andrew Truitt NABCEP Certified PV Installation Professional™ (ID# 032407-66) Principal Truitt Renewable Energy Consulting, LLC (202) 486-7507 LinkedIn Profile http://www.linkedin.com/pub/andrew-truitt/8/622/713 Company Website http://truittreconsulting.weebly.com/ %28202%29%20486-7507 [image: 24 copy.jpg] Don't get me wrong: I love nuclear energy! It's just that I prefer fusion to fission. And it just so happens that there's an enormous fusion reactor safely banked a few million miles from us. It delivers more than we could ever use in just about 8 minutes. And it's wireless! ~William McDonough image001.jpg___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
[RE-wrenches] Staying current on Codes and Standards
Greetings! I am looking for resources / strategies for staying current on all codes and standards that relate to PV project development. I.e. anything from the IEEE, UL, and ASTM standards that govern product testing up through the ICC i-codes (IBC, IRC, IFC...), NFPA codes, and ASHRAE standards that relate to system design and construction and also anything like IEC 62446 that relate to documentation, commissioning and OM. It's quite an alpha-numeric soup out there - how do you ensure that each department in your company stays current on the codes and standards that effect their operation? For a brighter energy future, Andrew Truitt NABCEP Certified PV Installation Professional™ (ID# 032407-66) Principal Truitt Renewable Energy Consulting, LLC (202) 486-7507 LinkedIn Profile http://www.linkedin.com/pub/andrew-truitt/8/622/713 Company Website http://truittreconsulting.weebly.com/ %28202%29%20486-7507 Don't get me wrong: I love nuclear energy! It's just that I prefer fusion to fission. And it just so happens that there's an enormous fusion reactor safely banked a few million miles from us. It delivers more than we could ever use in just about 8 minutes. And it's wireless! ~William McDonough ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] seimens QP 20 A 240 V breaker backfeed
Gary - I'm not sure what the application is, but if you are trying to convince an AHJ that this breaker is suitable for backfeed (i.e. approved for current flow in both directions) then you can just point the to the Code: *NEC 2011 705.12(D)(5) Suitable for Backfeed. Circuit breakers, if backfed, shall be suitable for such operation. See related ROPhttp://code.necplus.org/document.php?id=necss%3A70-2011%3Anecs70-705.12# ULhttp://code.necplus.org/document.php?id=necss%3A70-2011%3Anecs70-705.12# * * * *Informational Note: Circuit breakers that are marked “Line” and “Load” have been evaluated only in the direction marked. Circuit breakers without “Line” and “Load” have been evaluated in both directions. * For a brighter energy future, Andrew Truitt NABCEP Certified PV Installation Professional™ (ID# 032407-66) Principal Truitt Renewable Energy Consulting, LLC (202) 486-7507 LinkedIn Profile http://www.linkedin.com/pub/andrew-truitt/8/622/713 Company Website http://truittreconsulting.weebly.com/ %28202%29%20486-7507 Don't get me wrong: I love nuclear energy! It's just that I prefer fusion to fission. And it just so happens that there's an enormous fusion reactor safely banked a few million miles from us. It delivers more than we could ever use in just about 8 minutes. And it's wireless! ~William McDonough On Tue, Apr 23, 2013 at 11:23 AM, Carl Adams swingjun...@gmail.com wrote: -Forwarded on behalf of Gary Easton at ARP-Solar With Regards Carl Adams, President SunRock Solar, LLC 513.290.9072 (cell) 513.766.6025 (office) -- Forwarded message -- From: gary easton g...@arp-solar.com Date: Tue, Apr 23, 2013 at 1:12 PM Subject: backfeeding breakers To: RE-wrenches re-wrenches@lists.re-wrenches.org Hello, Can anyone point me to the data sheet indicating the reverse feed capability of a seimens QP 20 A 240 V breaker? -- Gary Easton Appalachian Renewable Power Stewart, Ohio 45778 NABCEP Certified Solar PV T: 740-277-8498 www.arp-solar.com “First they ignore you. Then they laugh at you. Then they fight you. Then you win.” ~Ghandi -- Gary Easton Appalachian Renewable Power Stewart, Ohio 45778 NABCEP Certified Solar PV T: 740-277-8498 www.arp-solar.com “First they ignore you. Then they laugh at you. Then they fight you. Then you win.” ~Ghandi ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Enphase Wire Management
Aaron - Zep makes a bracket for supporting Enphase connectors which is quite robust: http://www.zepsolar.com/images/files/components/pdf/Enphase-Connector-Bracket-RevD-Writing_CLI.pdf Of course it is intended for use with Zep compatible modules. - Andrew Sent from my iPhone On Apr 12, 2013, at 1:02 PM, All Solar allso...@scswifi.net wrote: Iron ridge has some wire clips that will also fit Unirac rails Sent from Jeremy's IPhone. Sorry for typos and shorthand! On Apr 11, 2013, at 6:52 PM, Aaron Mandelkorn reoso...@gmail.com wrote: Just wondering what people like to use for supporting the trunk cable for the enphase 215 inverters. WIth zipties going brittle after a couple of years aluminum or steel options are what I am more interested in. I have seen some installs with steel zipties but the sharp edge on them makes me wonder if there is a chance of them cutting into the cable. I have used 3/8 one hole conduit straps on each side of the trunk cable connector and although this seems quite stout it gets expensive on larger systems. Any ideas about products out there for supporting the trunk cable for the life of the system? Aaron Mandelkorn NABCEP Certified PV Installer Renewable Energy Outfitters Box 65 Salida, CO. 81201 (970)596-3744 ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Cable tray
Bill - What is your take in conductor insulation degradation over time when exposed to UV? Regardless of the sunlight resistant labeling, USE-2 (and I assume PV wire though I haven't seen it yet) does show wear after years of exposure to direct sunlight. Maybe best practice would be to use cable trays where conductors are shaded and [properly installed] conduit when exposed to direct UV? - Andrew Truitt Sent from my iPad On Mar 26, 2013, at 11:55 PM, Bill Brooks billbroo...@yahoo.com wrote: William, I have all the respect in the world for you, but I’m not referring to “basket tray”, which is only appropriate for small conductors. I’m talking about legitimate cable tray that can be up to 12” wide and that has a top and rungs every 12”. The main facilities that use it in the United States are large industrial facilities. Most electricians don’t get to work with it. It is clearly superior to EMT and is at least as good as IMC without all the hassle of threaded fittings and setting up expansion joints and worrying about 20 years of conductors thermal cycling. Even the best electricians have problems with this stuff. I am talking about projects with 800 foot long feeder runs. We can bring them in the building and build a rack for the conduit or run covered tray outside. As the 2014 NEC will require, you will have to use contactor combiners or some other means to shut down the conductors inside a building. It’s all doable. My recommendation after seeing the aftermath of rooftop conduit by good electricians is to put cable tray on roofs and use conduit if you bring the feeders indoors. It will become common practice soon. Hopefully sooner than later. Bill. From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of William Miller Sent: Tuesday, March 26, 2013 9:49 PM To: RE-wrenches Subject: Re: [RE-wrenches] Cable tray Bill: I have to disagree with you on this one. We can not abandoned a tried and true practice just because some practitioners don't do it right. I don't know how one can justify saying that encapsulating high voltage conductors in a conduit is less safe than exposed in a flimsy basket. Consider snow and ice and falling objects. Too many installers entered the PV field without first acquiring the necessary skills as journeymen or women electricians. I don't see the benefit of rewriting the code to accommodate a lack of skills in the industry. Respectfully, William Miller PS: The temperature adders always encourage us to enter the building envelope at the first appropriate location to avoid adding them. Thoughtful installers will do the same. Wm At 10:15 PM 3/25/2013, you wrote: Content-Type: multipart/alternative; boundary==_NextPart_000_00E3_01CE29A6.37CC5110 Content-Language: en-us William, I would strongly disagree that conduit is tried and true on rooftops. I have rarely seen good conduit runs on rooftops. Most electricians have no clue how to work with expansion joints. Conduit on rooftops is a bad idea in general. Most conduit runs in big buildings are all done indoors for good reason. We are the crazy people doing things on the roof. The sooner we get away from conduitparticularly for long feeder runsthe better. In Europe they don’t have problems with their rooftop wiring systems because everything is in tray. For those that don’t allow cable tray for anything less than 1/0, just remember that if it isn’t called cable tray, then 392 doesn’t apply. The NEC would allow us to use treated lumber in place of cable tray. This makes no sense. We did some research on the origin of the 1/0 requirement, and it is ancient and no longer relevant. Just because it is in the code, does not mean it is correct. That’s why we try to fix it every three years. Bill. ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] diesel vs. solar
Erika - HOMER (http://www.homerenergy.com/) is a hybrid power system modeling tool for on- or off-grid applications. There is a 2 week free trial period and then it costs $100 for a 6 month software license. I haven't used it yet but have heard good things. - Andrew Truitt Sent from my iPad On Mar 25, 2013, at 7:15 AM, Erika Weliczko er...@repowersolutions.com wrote: Does anyone know of an efficient calculator tool to help compare diesel /gas generator to PV + batt + small generator for an off-grid vacation house? Regards, Erika ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Simplified permit process
One more: the SunRun report on the impact of local permitting on the cost of solar: http://www.sunrunhome.com/solar-lease/cost-of-solar/local-permitting/?utm_source=Solar+Citizen%3A+Issue+2+-+2%2F1%2F13utm_campaign=Solar+Citizenutm_medium=email I know these aren't short articles, but they are generally well-supported and defensible documents that should bolster your argument. I've been working on this a little bit lately with Solar 3.0 so feel free to call me to discuss. For a brighter energy future, Andrew Truitt NABCEP Certified PV Installer™ (ID# 032407-66) Principal Truitt Renewable Energy Consulting, LLC (202) 486-7507 LinkedIn Profile http://www.linkedin.com/pub/andrew-truitt/8/622/713 Company Website http://truittreconsulting.weebly.com/ %28202%29%20486-7507 Don't get me wrong: I love nuclear energy! It's just that I prefer fusion to fission. And it just so happens that there's an enormous fusion reactor safely banked a few million miles from us. It delivers more than we could ever use in just about 8 minutes. And it's wireless! ~William McDonough On Thu, Feb 7, 2013 at 11:21 PM, Andrew Truitt atru...@gmail.com wrote: Allan - Check out the Resources section on the Solar 3.0 Permitting page: http://solar30.org/toolbox/permitting/ You might also want to check out the DOE's Solar Powering Your Community document: http://www1.eere.energy.gov/solar/pdfs/47692.pdf And this page has a decent graphic breaking down BOS soft costs: http://www1.eere.energy.gov/solar/sunshot/nonhardware_costs.html And if you want more info / help one of these guys (like the Arizona team or the Optiny team) might be interested: http://www1.eere.energy.gov/solar/sunshot/rooftop_challenge.html For a brighter energy future, Andrew Truitt NABCEP Certified PV Installer™ (ID# 032407-66) Principal Truitt Renewable Energy Consulting, LLC (202) 486-7507 LinkedIn Profile http://www.linkedin.com/pub/andrew-truitt/8/622/713 Company Website http://truittreconsulting.weebly.com/ %28202%29%20486-7507 Don't get me wrong: I love nuclear energy! It's just that I prefer fusion to fission. And it just so happens that there's an enormous fusion reactor safely banked a few million miles from us. It delivers more than we could ever use in just about 8 minutes. And it's wireless! ~William McDonough On Tue, Feb 5, 2013 at 6:17 PM, Allan Sindelar al...@positiveenergysolar.com wrote: A bill has been introduced in our 60-day state legislative session to direct our statewide licensing agency to develop a consistent set of permitting standards for PV systems. Like many states, we suffer a confusing matrix of differing local standards, costs and requirements. I would like to testify at a legislative committee hearing in favor of a common standard. We have our own matrix spreadsheet, and we have the Solar ABCs' Expedited Process as developed by Bill Brooks and others. What I'm looking for are links to the best short, nontechnical and easily read articles about how the permit process has become a large portion of the cost of all PV systems, how it's holding back the adoption and growth of PV, how the Obama administration has recognized this as one of the structural barriers to more renewables adoption, and the like. The best I can find will get printed out and given to the legislators. I have seen many of these articles, on Renewable Energy World and other media, but have never saved them, of course. That's why I'm asking for this assistance. Many of us are facing the same issues in our jurisdictions. Thank you, Allan -- *Allan Sindelar* *al...@positiveenergysolar.com* al...@positiveenergysolar.com NABCEP Certified Photovoltaic Installer NABCEP Certified Technical Sales Professional New Mexico EE98J Journeyman Electrician Founder and Chief Technology Officer *Positive Energy, Inc.* 3209 Richards Lane (note new address) Santa Fe, New Mexico 87507 *505 424-1112* *www.positiveenergysolar.com* http://www.positiveenergysolar.com/ * * ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Simplified permit process
Allan - Check out the Resources section on the Solar 3.0 Permitting page: http://solar30.org/toolbox/permitting/ You might also want to check out the DOE's Solar Powering Your Community document: http://www1.eere.energy.gov/solar/pdfs/47692.pdf And this page has a decent graphic breaking down BOS soft costs: http://www1.eere.energy.gov/solar/sunshot/nonhardware_costs.html And if you want more info / help one of these guys (like the Arizona team or the Optiny team) might be interested: http://www1.eere.energy.gov/solar/sunshot/rooftop_challenge.html For a brighter energy future, Andrew Truitt NABCEP Certified PV Installer™ (ID# 032407-66) Principal Truitt Renewable Energy Consulting, LLC (202) 486-7507 LinkedIn Profile http://www.linkedin.com/pub/andrew-truitt/8/622/713 Company Website http://truittreconsulting.weebly.com/ %28202%29%20486-7507 Don't get me wrong: I love nuclear energy! It's just that I prefer fusion to fission. And it just so happens that there's an enormous fusion reactor safely banked a few million miles from us. It delivers more than we could ever use in just about 8 minutes. And it's wireless! ~William McDonough On Tue, Feb 5, 2013 at 6:17 PM, Allan Sindelar al...@positiveenergysolar.com wrote: A bill has been introduced in our 60-day state legislative session to direct our statewide licensing agency to develop a consistent set of permitting standards for PV systems. Like many states, we suffer a confusing matrix of differing local standards, costs and requirements. I would like to testify at a legislative committee hearing in favor of a common standard. We have our own matrix spreadsheet, and we have the Solar ABCs' Expedited Process as developed by Bill Brooks and others. What I'm looking for are links to the best short, nontechnical and easily read articles about how the permit process has become a large portion of the cost of all PV systems, how it's holding back the adoption and growth of PV, how the Obama administration has recognized this as one of the structural barriers to more renewables adoption, and the like. The best I can find will get printed out and given to the legislators. I have seen many of these articles, on Renewable Energy World and other media, but have never saved them, of course. That's why I'm asking for this assistance. Many of us are facing the same issues in our jurisdictions. Thank you, Allan -- *Allan Sindelar* *al...@positiveenergysolar.com* al...@positiveenergysolar.com NABCEP Certified Photovoltaic Installer NABCEP Certified Technical Sales Professional New Mexico EE98J Journeyman Electrician Founder and Chief Technology Officer *Positive Energy, Inc.* 3209 Richards Lane (note new address) Santa Fe, New Mexico 87507 *505 424-1112* *www.positiveenergysolar.com* http://www.positiveenergysolar.com/ * * ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] AHJ's NABCEP cert.
Ian - While some jurisdictions do choose to require NABCEP certification to qualify for incentives, NABCEP certification does not replace local licensing. Please see the disclaimer at the bottom of the NABCEP About Us page (http://www.nabcep.org/about-us). For a brighter energy future, Andrew Truitt NABCEP Certified PV Installer™ (ID# 032407-66) Principal Truitt Renewable Energy Consulting, LLC (202) 486-7507 LinkedIn Profile http://www.linkedin.com/pub/andrew-truitt/8/622/713 Company Website http://truittreconsulting.weebly.com/ %28202%29%20486-7507 Don't get me wrong: I love nuclear energy! It's just that I prefer fusion to fission. And it just so happens that there's an enormous fusion reactor safely banked a few million miles from us. It delivers more than we could ever use in just about 8 minutes. And it's wireless! ~William McDonough On Sat, Feb 2, 2013 at 5:15 PM, Ian Eastman i...@cesolar.com wrote: Hi Re-wrenchers, Does anyone know where to find some good information on talking to your local AHJ concerning using the NABCEP cert. for a Solar Contracting License? Arguments, facts...? Thanks, Ian -- *Ian Eastman *| Installation/Project Management *GO SOLAR!* *Cell: 307.413.6789* • *i...@cesolar.com i...@creativeenergies.biz* * **Creative Energies* *Victor, ID *office 208.354.3001 Lander, WY office* *307.332.3410* *Salt Lake City, UT office 801.487.6489 * *www.CreativeEnergies.biz http://www.creativeenergies.biz/ ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Best racking systems (was Awkward Mid-clamps jigs for installing or removing modules?)
Jason - This is from Nate Colman, PE and Director of Technical Development at Zep: Zep Solar will be providing updated span tables and compliance letters based on ASCE-10 in the next few weeks. Regarding removal of modules for service - it is common practice to remove up roof modules in order to gain access to a module requiring service, regardless of the mounting system. Zep’s recommended practices for module removal are detailed within our installation manuals. Please note that Zep Solar does not promote walking across arrays in order to remove a module for servicing, as this may result in damage to the cells. Regarding microinverter installations - Zep Solar continues to design innovative products for the installation of module device electronics that will simplify the integration and mounting of these devices in Zep arrays For a brighter energy future, Andrew Truitt NABCEP Certified PV Installer™ (ID# 032407-66) Principal Truitt Renewable Energy Consulting, LLC (202) 486-7507 LinkedIn Profile http://www.linkedin.com/pub/andrew-truitt/8/622/713 Company Website http://truittreconsulting.weebly.com/ %28202%29%20486-7507 Don't get me wrong: I love nuclear energy! It's just that I prefer fusion to fission. And it just so happens that there's an enormous fusion reactor safely banked a few million miles from us. It delivers more than we could ever use in just about 8 minutes. And it's wireless! ~William McDonough On Mon, Jan 21, 2013 at 8:34 AM, Jason Szumlanski ja...@fafcosolar.comwrote: Despite the fact that Unirac has not updated its manual for ASCE 7-10, the span tables are still useful and there is adequate engineering information from them to get the job done. Solarmount is still our product of choice, despite several lower cost options like Ironridge. That could change if competitors move to lower cost options. *Jason Szumlanski* *Fafco Solar* * * On Mon, Jan 21, 2013 at 10:05 AM, Chris Mason cometenergysyst...@gmail.com wrote: Jason, What are you using now? We look to Florida for standards, as he Caribbean doesn't have any. On Mon, Jan 21, 2013 at 9:10 AM, Jason Szumlanski ja...@fafcosolar.comwrote: That's based on ASCE 7-05. If your AHJ requires ASCE 7-10, that is no longer the case. Florida Building Code 2010 requires use of ASCE 7-10, and ultimate design wind speeds have changed dramatically, so it's important to consider the method, not just the wind speed. We liked Zep, except when you have to remove a module for service. Microinverter installations are a little clunky with Zep, even with module frames specifically designed for Enphase. Unfortunately, we stopped using the product for a variety of reasons, not the least of which were new code requirements in Florida. *Jason Szumlanski** * *Fafco Solar* On Sat, Jan 19, 2013 at 5:52 PM, Andrew Truitt atru...@gmail.comwrote: Chris - The Zep system can be installed in up to 150mph wind zones in most cases. See the span tables on the Zep engineering documentation: http://www.zepsolar.com/images/files/general/pdf/ZS_Compliance_Letter.pdf Todd - Ground snow loads of up to 70 psf are allowable. A free design tool can be found at zepulator.com For a brighter energy future, Andrew Truitt NABCEP Certified PV Installer™ (ID# 032407-66) Principal Truitt Renewable Energy Consulting, LLC (202) 486-7507 LinkedIn Profile http://www.linkedin.com/pub/andrew-truitt/8/622/713 Company Website http://truittreconsulting.weebly.com/ %28202%29%20486-7507 On Fri, Jan 18, 2013 at 10:07 PM, toddc...@finestplanet.com wrote: or heavy snow... the supports are clear out on the ends. todd On Friday, January 18, 2013 5:09pm, Chris Daum ch...@oasismontana.com said: So how does the Zep stuff's testing do in winds in excess of 100 mph? I saw a nice demo and display of their goods in at the Anaheim 2009 SPI, but still am reticent to switch suppliers and modules to accomodate racking Chris Daum Oasis Montana Inc. ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org -- Chris Mason President, Comet Systems Ltd www.cometenergysystems.com Cell: 264.235.5670 Skype: netconcepts ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out
Re: [RE-wrenches] Best racking systems (was Awkward Mid-clamps jigs for installing or removing modules?)
Chris - The Zep system can be installed in up to 150mph wind zones in most cases. See the span tables on the Zep engineering documentation: http://www.zepsolar.com/images/files/general/pdf/ZS_Compliance_Letter.pdf Todd - Ground snow loads of up to 70 psf are allowable. A free design tool can be found at zepulator.com For a brighter energy future, Andrew Truitt NABCEP Certified PV Installer™ (ID# 032407-66) Principal Truitt Renewable Energy Consulting, LLC (202) 486-7507 LinkedIn Profile http://www.linkedin.com/pub/andrew-truitt/8/622/713 Company Website http://truittreconsulting.weebly.com/ %28202%29%20486-7507 Don't get me wrong: I love nuclear energy! It's just that I prefer fusion to fission. And it just so happens that there's an enormous fusion reactor safely banked a few million miles from us. It delivers more than we could ever use in just about 8 minutes. And it's wireless! ~William McDonough On Fri, Jan 18, 2013 at 10:07 PM, toddc...@finestplanet.com wrote: or heavy snow... the supports are clear out on the ends. todd On Friday, January 18, 2013 5:09pm, Chris Daum ch...@oasismontana.com said: So how does the Zep stuff's testing do in winds in excess of 100 mph? I saw a nice demo and display of their goods in at the Anaheim 2009 SPI, but still am reticent to switch suppliers and modules to accomodate racking Chris Daum Oasis Montana Inc. -- *From:* re-wrenches-boun...@lists.re-wrenches.org [mailto: re-wrenches-boun...@lists.re-wrenches.org] *On Behalf Of *August Goers *Sent:* Friday, January 18, 2013 5:36 PM *To:* RE-wrenches *Subject:* Re: [RE-wrenches] Best racking systems (was Awkward Mid-clamps jigs for installing or removing modules?) Andrew, Very interesting. I know several people at Zep and have toured their facility and definitely like many aspects of their product. But, we haven't tried it on one of our projects yet. I think part of that is because we work in the San Francisco Bay Area where custom racks are often required and are very prevalent. We have crews working on a daily basis on pitched and flat roofs of all types and Unirac and Pro Solar have been a staple to basically build whatever type of rack we need. Many installers, including us, use a pipe or angle aluminum sub structure on flat roofs to tilt and span over objects or fit panels into tight spaces. This allows for us to solve for any mounting dilemma but definitely takes a burden on time and materials. I'd say about 30% of our business is standard flush mount comp shingle. And the question is whether there is a strong enough solution that justifies stocking another type of panel and or racking system. Best, August August Goers Luminalt Energy Corporation 1320 Potrero Avenue San Francisco, CA 94110 m: 415.559.1525 o: 415.641.4000 aug...@luminalt.com *From:* re-wrenches-boun...@lists.re-wrenches.org [mailto: re-wrenches-boun...@lists.re-wrenches.org] *On Behalf Of *Andrew Truitt *Sent:* Friday, January 18, 2013 3:26 PM *To:* RE-wrenches *Subject:* Re: [RE-wrenches] Best racking systems (was Awkward Mid-clamps jigs for installing or removing modules?) August - Zep Solar http://zepsolar.com recently signed a contract with Solar City to be their primary residential mounting solution nationally and brought me on to help roll out the program in Colorado. I can tell you that Solar City spent 2 years working with Zep and vetting the product and they would not have signed on unless they felt that they would achieve significant cost savings. Zep is actually very versatile - modules can be installed in portrait or landscape; array leveling is achieved easily with a few turns of a threaded stud; gaps in the array are easily installed; mounting options are available for almost any roof surface; the module / mounting system is (or will be very soon) listed to UL 2703 as a complete bonded system; and the lack of rail should eliminate the need for electrical rough-in roof inspections for the unfortunate souls with AHJs that require such nonsense. At least 14 module manufacturers now make Zep-compatible modules and installers are starting to line up to become dealers of the product. I've installed a number of rail-less systems, but this one is the best I've seen. For a brighter energy future, Andrew Truitt NABCEP Certified PV Installer™ (ID# 032407-66) Principal Truitt Renewable Energy Consulting, LLC (202) 486-7507 %28202%29%20486-7507 LinkedIn Profile http://www.linkedin.com/pub/andrew-truitt/8/622/713 Company Website http://truittreconsulting.weebly.com/ Don't get me wrong: I love nuclear energy! It's just that I prefer fusion to fission. And it just so happens that there's an enormous fusion reactor safely banked a few million miles from us. It delivers more than we could ever use in just about 8 minutes. And it's wireless! ~William
Re: [RE-wrenches] Best racking systems (was Awkward Mid-clamps jigs for installing or removing modules?)
August - Zep Solar http://zepsolar.com recently signed a contract with Solar City to be their primary residential mounting solution nationally and brought me on to help roll out the program in Colorado. I can tell you that Solar City spent 2 years working with Zep and vetting the product and they would not have signed on unless they felt that they would achieve significant cost savings. Zep is actually very versatile - modules can be installed in portrait or landscape; array leveling is achieved easily with a few turns of a threaded stud; gaps in the array are easily installed; mounting options are available for almost any roof surface; the module / mounting system is (or will be very soon) listed to UL 2703 as a complete bonded system; and the lack of rail should eliminate the need for electrical rough-in roof inspections for the unfortunate souls with AHJs that require such nonsense. At least 14 module manufacturers now make Zep-compatible modules and installers are starting to line up to become dealers of the product. I've installed a number of rail-less systems, but this one is the best I've seen. For a brighter energy future, Andrew Truitt NABCEP Certified PV Installer™ (ID# 032407-66) Principal Truitt Renewable Energy Consulting, LLC (202) 486-7507 LinkedIn Profile http://www.linkedin.com/pub/andrew-truitt/8/622/713 Company Website http://truittreconsulting.weebly.com/ %28202%29%20486-7507 Don't get me wrong: I love nuclear energy! It's just that I prefer fusion to fission. And it just so happens that there's an enormous fusion reactor safely banked a few million miles from us. It delivers more than we could ever use in just about 8 minutes. And it's wireless! ~William McDonough On Fri, Jan 18, 2013 at 3:23 PM, Ray Walters r...@solarray.com wrote: I second the vote for Pro Solar, but I don't care for their Fast Jacks. Their Tile Track mounts can actually be used on comp roofs ( see the manual) and work quite well. The best part of Pro Solar rails is they can be used for wire management too. Just drop the cables into the open top of the rail, it acts as a decent cable tray. I've used Haticon and it has some advantages, but also its own problems: their clamps are not the greatest. Ray Walters Solarray, Inc. On 1/18/2013 3:04 PM, August Goers wrote: All - This thread brought up a question I've been mulling over for a while - what is the best flush mount rack out there these days on the market? I've tried a lot of different racks and am always on the hunt to find something better but the more experience I get I keep going back to Pro Solar and Unirac SolarMount. Pro Solar's price can't be beaten and once you get over having to drill a quick hole for every stanchion point it goes in really quickly. Plus, their mid clamps and end clamps are really solid, easy to work with, and work well with WEEBs. All that said, I still want something more. Fast and versatile is always better so I'll keep looking. The specialized racks like Zep seem cool but seem to lack the versatility aspect. Has anyone tried using Unirac's latest gen system SolarMount Evolution? Best, August ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] 3 Phase With 2 Inverters?
Bill Brooks posted this in 2008. A couple of project-specific sentences were removed to avoid confusion. The 6kVA value comes from the California Rule 21 that I worked on. It only applies to split-phase 240V systems (6kVA on 120V). There is no specific limit for imbalance on a 3-phase service. A basic rule for single phase generation on a 3=phase service is to rotate among the phases in a balanced manner... ...The best way to place the imbalanced single-phase generators on the service is to test the current on all three phases and put the inverter(s) on the most heavily loaded phase(s). This reduces the site imbalance by reducing the imbalance on the serving transformer (lowering current on the most heavily loaded phases). It is common for 3-phase services to have imbalances of 10 kVA or more, so single-phase inverters can reduce the problem rather than make it worse. For a brighter energy future, Andrew Truitt NABCEP Certified PV Installer™ (ID# 032407-66) Principal Truitt Renewable Energy Consulting (202) 486-7507 http://www.linkedin.com/pub/andrew-truitt/8/622/713 Don't get me wrong: I love nuclear energy! It's just that I prefer fusion to fission. And it just so happens that there's an enormous fusion reactor safely banked a few million miles from us. It delivers more than we could ever use in just about 8 minutes. And it's wireless! ~William McDonough On Tue, Nov 27, 2012 at 3:33 PM, Chris Mason cometenergysyst...@gmail.comwrote: I really don't understand what your problem with this arrangement is. How would this be different from a house on phase A-B installing an inverter and the next house on Phase B-C installing an inverter? Or, installing two single phase 240V A/C units in a three phase building? Electricians have no issue with installing single phase equipment in three phase buildings so why should small inverters be any more a problem. While it is always neat to install three inverters n a three phase configuration, 4,500 watts of imbalance is trivial. On Tue, Nov 27, 2012 at 3:59 PM, hol...@sbcglobal.net wrote: ** We were asked to inspect a GT system installed by others. Service is 208 3ph with two (?) Fronius IG 4500 208v inverters. The inverter panel is 3ph with two 2pole breakers - one each side of the buss bar in a A/B, B/C configuration (??). Called Fronius and they said it would work, but they don't recommend it. No other information was given as to why they don't. My electrician is very uncomfortable with doing work on this system as is (ME TOO!), so I am wondering if I might be able get some ammo to convince system owner to add a third inverter to get the system right. What problems might/will be encountered in this system if not modified? BTW - inverter LCD screens were crapped out, so we couldn't readily see if system was functioning properlyfrom metering, we think not. Holt E. Kelly Holtek Fireplace Solar Products 500 Jewell Dr. Waco TX. 76712 254-751-9111 www.holteksolar.com ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org -- Chris Mason President, Comet Systems Ltd www.cometenergysystems.com Cell: 264.235.5670 Skype: netconcepts ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Best practices for conduit penetration on roof
Not to be too nit-picky, but I think its a good idea to distinguish between branch circuits (parallel connections) and strings (series connections). Enphase inverters are wired in parallel while string or central inverters require modules to be wired in series (with parallel strings as an option). I know you know this Jason, just wanted to clarify. For a brighter energy future, Andrew Truitt NABCEP Certified PV Installer™ (ID# 032407-66) Principal Truitt Renewable Energy Consulting (202) 486-7507 http://www.linkedin.com/pub/andrew-truitt/8/622/713 Don't get me wrong: I love nuclear energy! It's just that I prefer fusion to fission. And it just so happens that there's an enormous fusion reactor safely banked a few million miles from us. It delivers more than we could ever use in just about 8 minutes. And it's wireless! ~William McDonough On Mon, Nov 26, 2012 at 11:50 AM, Jason Szumlanski ja...@fafcosolar.comwrote: I just called Soladeck and they are sending me some more info on availability. I'll pass it along when I get it. I didn't realize they made an AC roof mounted string combiner solution. That's a huge help for 2 or 3 string Enphase installations (they make both combiners). While on the subject, we recently started using the Enphase cable couple with Type TC-ER cable to extend cabling to junction boxes when necessary... No more wasting trunk cable connectors! I suppose Type TC-ER could be used all the way to the main distribution panel, thereby eliminating junctions on the roof, but I haven't looked into the cost/benefit of that idea. *Jason Szumlanski* *Fafco Solar* On Mon, Nov 26, 2012 at 1:26 PM, Gary Willett g...@icarussolarservices.com wrote: NICK: I could not find the AC model numbers you provided on the SolaDeck web site. Do you know the manufacturer, and the voltage and temperature ratings, for the 2-pole 20A AC breakers? Regards, Gary Willett, PE Icarus Engineering LLC Icarus Solar Services LLC On 11/26/2012 11:54 AM, Nick Soleil wrote: Hi wrenches; SolaDeck Models 0760-41AD and 0766-41AD are rated for up to 60A at 240Vac. It can be ordered with DIN rail mounted AC breakers and a combiner kit. The 2 - 20A circuit combiner kit is part 0760K2AC. I'd recommend checking with a distributor or on SolaDeck's website for the most current information. Nick Soleil, Enphase Energy On Sun, Nov 25, 2012 at 7:44 AM, Kent Osterberg k...@coveoregon.comwrote: My understanding has been that the Soladeck has only been listed for DC wiring. Perhaps they have a manufacturer rep on RE-wrenches that can clarify. Kent Osterberg Blue Mountain Solar, Inc. www.bluemountainsolar.com On 11/25/2012 6:20 AM, Dave Palumbo wrote: Rich, We have been using SolaDeck PV roof mount enclosure. NEMA 3R with a flashed penetration. Can use for combining, or simply as a pass through box. Dave David Palumbo Independent Power LLC 462 Solar Way Drive Hyde Park, VT 05655 www.independentpowerllc.com NABCEP Certified PV Installer Vermont Solar Partner 25 Years Experience, (802) 888-7194 -Original Message- From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Rich Nicol Sent: Sunday, November 25, 2012 8:11 AM To: 'RE-wrenches' Subject: [RE-wrenches] Best practices for conduit penetration on roof Wrenches, We typically run conduit for roof mounts over the edge of the roof to the eaves, rather than penetrate the roof whenever possible. An upcoming installation on an freshly asphalt shingled roof requires that we penetrate the roof for the conduit run (Enphase). I'm wondering if there are any suggestions for preferred flashing products and best known practices. It's always seemed to me that the typical Oatey type flashing dries and cracks eventually. Thanks for your insights.. Rich ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org -- Cordially, *Nick Soleil* *Field Applications Engineer * *Enphase Energy* Mobile: (707) 321-2937 ** *Enphase Commercial Solar.* *Limitless.*http://www.enphase.com/commercial?utm_source=emailutm_medium=sigutm_campaign=Comm2012 * *http://www.enphase.com/commercial?utm_source=emailutm_medium=sigutm_campaign=Comm2012 1420 North McDowell Petaluma, CA 94954 www.enphase.com http://www.enphaseenergy.com/ P: (707) 763-4784 x7267 F: (707) 763-0784 E: nsol...@enphaseenergy.com [image: nabcep logo] Certified Solar PV Installer #03262011-300 “Don’t get me wrong: I love nuclear energy
Re: [RE-wrenches] SunSlates from Atlantis Energy
I've seen a few Atlantis projects mid-install. As with many roof-integrated PV products they involve a LOT of electrical connections and significant installation labor. If memory serves, a wooden lattice structure was built on top of the roof to provide ventilation and the slates were fastened to the lattice. The issues I would be concerned with are connection failures and the labor costs associated with installation and slate replacement. The estimate that I got from installers (circa 2009) was $10-12 / watt installed (all-in). I am curious about their long-term weather-proofing performance, especially in adverse climates. For a brighter energy future, Andrew Truitt NABCEP Certified PV Installer™ (ID# 032407-66) Principal Truitt Renewable Energy Consulting (202) 486-7507 http://www.linkedin.com/pub/andrew-truitt/8/622/713 Don't get me wrong: I love nuclear energy! It's just that I prefer fusion to fission. And it just so happens that there's an enormous fusion reactor safely banked a few million miles from us. It delivers more than we could ever use in just about 8 minutes. And it's wireless! ~William McDonough On Tue, Oct 2, 2012 at 5:16 AM, Glenn Burt glenn.b...@glbcc.com wrote: I first saw them at a show back in ’06, so know they have been around a while. No firsthand experience installing them, however. ** ** Glenn ** ** *From:* re-wrenches-boun...@lists.re-wrenches.org [mailto: re-wrenches-boun...@lists.re-wrenches.org] *On Behalf Of *Aladdin Solar *Sent:* Monday, October 01, 2012 2:51 PM *To:* re-wrenches@lists.re-wrenches.org *Subject:* [RE-wrenches] SunSlates from Atlantis Energy ** ** Anyone familiar with SunSlates from Atlantis Energy ( http://atlantisenergy.com/?page_id=255 )? We have a customer interested in this system. We usually try to steer our customers to components from well known manufacturers. I've not run across this one before. Looks like a pretty involved roofing project. Can you comment on your experience installing these and express any opinions on quality? Thanks. Charlie Pickard NABCEP Certified Solar PV Installer ® Aladdin Solar 952-401-7073 cpick...@aladdinsolar.com www.AladdinSolar.com __ Information from ESET NOD32 Antivirus, version of virus signature database 7536 (20121001) __ The message was checked by ESET NOD32 Antivirus. http://www.eset.com ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Up for a 1-Line Riddle?
Ahh yes, the old combine strings before landing on a fused DC input terminal trick. Sure to blow the fuse the first sunny day. This is why SMA created their fuse-bypass DC input terminal. I take it the installer was not aware of this... For a brighter energy future, Andrew Truitt NABCEP Certified PV Installer™ (ID# 032407-66) Principal Truitt Renewable Energy Consulting (202) 486-7507 http://www.linkedin.com/pub/andrew-truitt/8/622/713 Don't get me wrong: I love nuclear energy! It's just that I prefer fusion to fission. And it just so happens that there's an enormous fusion reactor safely banked a few million miles from us. It delivers more than we could ever use in just about 8 minutes. And it's wireless! ~William McDonough On Thu, Aug 30, 2012 at 11:53 AM, Jason Szumlanski ja...@fafcosolar.comwrote: I was sent to look at another contractor's work, and found three SB5000 inverters with blown string input fuses. I was able to determine the reason pretty quickly, and was later sent the original 1-Line, which was installed per the drawings. The 1-Line came from a leading system integrator who shall remain nameless. See anything wrong? https://www.sugarsync.com/pf/D6539806_8669786_010829 Just goes to show you - the contractor needs to take responsibility and verify the specifications are correct, safe, and code compliant. Jason Szumlanski Fafco Solar ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
[RE-wrenches] Xcel residential production meter socket requirements
Colorado Wrenches - I am putting together my Xcel application for my personal residential PV system and I am having a hard time finding the exact specifications for the meter socket I am required to supply. I have found that it must be in compliance with the 3/1/11 revision of the Xcel Energy Standard, but my research assistant (aka google) has been unable to produce that document for me. Any thoughts? For a brighter energy future, Andrew Truitt NABCEP Certified PV Installer™ (ID# 032407-66) Principal Truitt Renewable Energy Consulting (202) 486-7507 http://www.linkedin.com/pub/andrew-truitt/8/622/713 Don't get me wrong: I love nuclear energy! It's just that I prefer fusion to fission. And it just so happens that there's an enormous fusion reactor safely banked a few million miles from us. It delivers more than we could ever use in just about 8 minutes. And it's wireless! ~William McDonough ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
