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 be no problem in using that 327 as described. > > Marco > > On Saturday, January 20, 2018, Mac Lewis <maclew...@gmail.com> wrote: > >> 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? If it does need a positive ground, are there any decent MPPT >> charge controllers that are fully isolated from PV to battery side, that >> would allow PV + ground and Battery - ground? >> >> Thanks >> >> -- >> >> >> >> Mac Lewis >> >> *"Yo solo sé que no sé nada." -Sócrates* >> > _______________________________________________ > 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 > > Dave Angelini Offgrid Solar "we go where powerlines don't" http://members.sti.net/offgridsolar/ e-mail offgridso...@sti.net text 209 813 0060 _______________________________________________ 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
