Re: [RE-wrenches] EMP and PV modules

Here is a link that talks about this and a mention of a supplier if interested - video near the bottom: https://solarpowerrocks.com/solar-questions/will-solar-panels-survive-nuclear-emp/ David > On Jun 18,

[RE-wrenches] Schott solar panel warranty info

Does anyone have a good contact for Schott Solar warranty claims? Is this still possible? I just changed inverters to one with optimizers and see that I have a lot of bad panels. On closer inspection there are quite a few bad solder joints that are the causing the problems. Thanks, David

Re: [RE-wrenches] BP Solar overheat

s@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.o

Re: [RE-wrenches] PV testing

Hi Wrenchers, I have found on the older panels, especially the AstroPower line, the problems tend to be bad solder joints. This shows up as a series resistance. As such, the open circuit voltage and short circuit current will read good. It is not until you put an external load on the panel t

Re: [RE-wrenches] PV testing

y strings with bad panels, I > think this should be a minimum for any commissioning report. > > > On Tue, Oct 6, 2015 at 12:57 AM, David Coale wrote: > Hi Wrenchers, > > I have found on the older panels, especially the AstroPower line, the > problems tend to be bad

[RE-wrenches] Fwd: Problem with Tesla solar panels

Does anyone have advice on how to get Tesla to cover their warranty or a contact at Tesla that could help with this? Thanks, David > Begin forwarded message: > > From: Michael Closson > Subject: Problem with Tesla solar panels > Date: December 5, 2020 at 5:36:28 PM PST &g

[RE-wrenches] SolarApp+ app from NREL - has anyone used this for permitting?

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[RE-wrenches] SolarApp+ app from NREL - has anyone used this for permitting?

Hi Wrenchers, Has anyone used the SolarApp+ application for permitting solar? It is just getting started and sounds very promising and could greatly reduce the soft costs of installations. More info can be found here: https://solarapp.nrel.gov/ David ___

[RE-wrenches] SW5548PV manual

Hi Wrenchers, I am trying to get an old Trace SW5548PV inverter system up and running again. This inverter is gird tied only and does not have any batteries. While I am familiar with the battery based systems, I am not familiar with this system and the menus quite are different. Right now,

[RE-wrenches] PowerWall 3 in an off-grid system?

Hi Wrenchers, Has anyone used a PowerWall 3 as an ad-on to an existing off-grid system? Tesla says they do not support off-grid, but if the existing off-grid system is the “grid”, then this should work. David ___ List sponsored by Redwood Alliance

Re: [RE-wrenches] 1/2 wave loads

Way to complicated. The “half wave load” is as described earlier. It is a cheap way to get a hair drier (or other heater) with a three-way switch to have air, half power and full power. The half power routes the hot side through a diode so that the heating element only get half power. Full p

[RE-wrenches] Obscure PG&E NEM 3 question for CA Wrenchers

This is an obscure PG&E NEM 3 related question for the California Wrenchers, since no one out side CA - PG&E land might be able to answer this. I have a client with a 25 year old grid-tied system. When PG&E went to smart meters they declined (worried about EMF) and have been able to hold on to

Re: [RE-wrenches] Cell damage leading to ground fault?

I am having the same issue, but it is with an SMA inverter. In my case it happens when it is raining and clears up when it dries out. I can see there are some bad cells, but they are right next to the edge of the panel so a moisture problem would show up this way. Good to know about sealing t