[RE-wrenches] Tesla Powerwall battery paired with solar

[Kirk Herander]

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:re-wrenches-bounces at lists.re-wrenches.org] 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:re-wrenches-bounces at lists.re-wrenches.org] 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

 

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