Re: [RE-wrenches] RV solar with SunPower

Definitely agree! The E series is fine ! I run strings of 6 or 7 all the time negative ground GFCI. Best panel in the world with Panasonic and LG a close second! --Dave > A number of years ago SunPower switched to using a new cell that does NOT > require positive grounding. > > So there should

Re: [RE-wrenches] RV solar with SunPower

HI Mac, Sunpower used to have a white paper that showed positive ground was only needed above a certain voltage. Like 200v+ from memory. I don’t know if these particular modules would fall into that category. jay peltz power > On Jan 20, 2018, at 9:59 AM, Jerry Shafer

Re: [RE-wrenches] RV solar with SunPower

A number of years ago SunPower switched to using a new cell that does NOT require positive grounding. So there should be no problem in using that 327 as described. Marco On Saturday, January 20, 2018, Mac Lewis wrote: > Hi Wrenches, > > I have a buddy that would like to

Re: [RE-wrenches] 1,000V combiners

Chris Froius was going to have there own we used a draker 1k panel (may have been Deck) here is where we had another problem with Fronius, if they are in direct weather they may leak and fill with rain water, they say this cant happen but we had 9 for 9 leak, they had no solution so we put up a

Re: [RE-wrenches] RV solar with SunPower

Mac I have used the sunpower 318 on trailers with the outback charge controller FM-60, which was wired for positive ground. However this was the only power on board, did not have any issues when connected to the truck or via the outback PS 2 except when I connected the laptop to the Mate 3 and had

Re: [RE-wrenches] Concorde Lifeline Battery failures

HI Darryl, What size battery are you looking for? In a battery enclosure etc? jay peltz power > On Jan 19, 2018, at 10:25 PM, Darryl Thayer wrote: > > I am about to order AGMs for two backup power systems, help, they will be in > float all the time (except for

Re: [RE-wrenches] RV solar with SunPower

I believe all of the E series will work. It was a series before that had issues when not used as designed for. This unit is for a module inverter and you would have to isolate the PV wiring or remove the inverter. It is a great module and worth doing. You will need an mppt for 55 MPV which almost

[RE-wrenches] RV solar with SunPower

Hi Wrenches, I have a buddy that would like to use a leftover SunPower E20-327-C-AC, panel on his RV. Obviously he would need to take the inverter off. What I'm not sure of is if this panel can operate in an ungrounded configuration, or negative ground or does this still need a positive ground?