Well on March 31st I had a conversation with Luc Collin who is a Field Application Engineer with Solar Edge, and I asked him if they support AC coupling with their systems.
He told me that no, they do not, and I took that as the official Solar Edge position from a warranty standpoint. Now if John said something different since then, I do not recall it, however if it were stated prior to March of this year, perhaps he said it with a wink-wink, nudge-nudge as in it could be done, but perhaps he did not clearly state that SE would support it or honor warranty claims for a system that is installed that way. Glenn Burt glb, Consulting Company 1949 East Road Bennington, VT 05201 [email protected] (518) 587-7745 (518) 681-2274 NABCEP Certified PV Installation Professional TM Microsoft Certified Professional Member IEEE From: Kirk Herander [mailto:[email protected]] Sent: Saturday, May 02, 2015 7:22 AM To: [email protected]; 'RE-wrenches' Subject: RE: [RE-wrenches] Tesla Powerwall battery paired with solar John Berdner of Solaredge (still with them??) in a previous discussion on this forum has stated that Solaredge can be AC-coupled, with a firmware tweak I believe he said. Kirk Herander VT Solar, LLC Proven PV provider since 1991 www.vermontsolarnow.com dba Vermont Solar Engineering NABCEPTM Inaugural Certificant VT RE Incentive Program Partner 802.863.1202 From: RE-wrenches [mailto:[email protected]] On Behalf Of Glenn Burt Sent: Friday, May 01, 2015 7:47 PM To: 'RE-wrenches' Subject: Re: [RE-wrenches] Tesla Powerwall battery paired with solar I can tell you that the Solar Edge inverters do not support AC coupling, as their reps told me at the NABCEP CE conference… I have seen pictures of some Solar City battery systems that use an XW as the inverter. From: RE-wrenches [mailto:[email protected]] On Behalf Of August Goers Sent: Friday, May 01, 2015 6:50 PM To: RE-wrenches Subject: [RE-wrenches] Tesla Powerwall battery paired with solar Hi Wrenches, I’m sure you’ve seen the Tesla Powerwall press releases by now: http://www.teslamotors.com/presskit/teslaenergy We are already getting calls from interested homeowners. The product mostly seems like a toy for wealthy people but nonetheless I would like to be educated in how it works. There is mention that the battery pairs with Solar Edge inverters which makes sense because both the Powerwall and Solar Edge work off of ~350 VDC. But, I can’t figure out how off grid operation would work during power outages. Maybe another battery inverter like a Schneider Conext is required? Any thoughts on this product for better or worse? Best, August
_______________________________________________ List sponsored by Redwood Alliance List Address: [email protected] Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/[email protected]/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
