[RE-wrenches] Availability of Powerwall Batteries

William Dorsett wmdorsett at sbcglobal.net
Mon Jan 18 19:35:11 PST 2016


I think Solar Edge was bought by SunPower last year so there must be the thought to make them compatible. And that SolarCity had chosen SE as their inverter for the Power Wall.

 

Bill Dorsett

Manhattan, KS

 

From: RE-wrenches [mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Chris Mason
Sent: Monday, January 18, 2016 1:56 AM
To: RE-wrenches
Subject: Re: [RE-wrenches] Availability of Powerwall Batteries

 

The Sonnen offering is a rebadged and integrated Outback Radian with all those features. I believe it is 48V.

 

On Sun, Jan 17, 2016 at 8:43 PM, Peter Parrish <peter.parrish at calsolareng.com> wrote:

I know a fair amount about Sonnen. I thought their main thrust was 480 V/3P & LiFePO4 batteries, and systems for peak demand clipping. Do they have a “residential” offering?

 

I am looking at 240/120 V split phase. If I can TOU load shifting and battery back-up, that will do it for this customer. 

 

-          Peter

 

Peter T. Parrish, Ph.D.

President, SolarGnosis

1107 Fair Oaks Ave.

Suite 351

South Pasadena, CA 91030

(323) 839-6108 <tel:%28323%29%20839-6108> 

petertor at pobox.com

 

From: RE-wrenches [mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Dan Fink
Sent: Sunday, January 17, 2016 11:38 AM
To: RE-wrenches
Subject: Re: [RE-wrenches] Availability of Powerwall Batteries

 

Have you looked into SonnenBatterie? To which a number of Tesla execs have recently bailed out to work for?

As always with all these new hypey Lithium storage systems, their presentations had everything except the information that real Wrenches actually need. But I was able to glean the info that Sonnenbatterie works with existing 48VDC nominal equipment and input, and 120/240VAC inputs also. 

Following all the info coming out, but i'd rather let someone else be the guinea pig. And, of course, big $$$$ per kWh of storage.




Dan Fink

Adjunct Professor, Ecotech Institute

IREC Certified Instructor™ for: 

~ PV Installation Professional

~ Small Wind Installer

Executive Director, Buckville Energy

NABCEP Accredited Continuing Education Providers™
 <tel:970.672.4342> 970.672.4342


 

 

On Sun, Jan 17, 2016 at 12:06 PM, Peter Parrish <peter.parrish at calsolareng.com> wrote:

I have a residential client who wants a grid tied PV system with battery backup. The client wants everything to be top of the line: Sunpower modules. Tesla Powerwall batteries. 

 

Unfortunately, I have been spending time recently researching "smart energy storage" for commercial applications focusing on peak demand shaving. These are 480 V 3-phase systems with 30 kW inverters and 48+ kWh Lithium technology batteries. I think I am beginning to understand the performance trade-offs and how these systems can complement PV to reduce demand charges as well as usage charges.

 

My problem, is that I have not spent as much time researching the newer residential GTBB offerings. I have studied the Juicebox offering – Schneider XW5548 plus NMC Lithium batteries -- but that’s about it. I don’t know the default vendor for the NMC batteries and if not Powerwall, could Powerwall be a replacement? 

 

Otherwise, does anyone know how to access the Powerwall offerings?  Also has anyone had success getting a rebate in CA through the SGIP/AES program? I know to qualify for SGIP one needs to demonstrate load shifting as opposed to (or in addition to BB).   

 

There seems to be an offering from Solaredge (Storedge), but it is not clear their optimizers work with the 96 cell Sunpower X21-345, for example.

 

I am convinced that smart storage will become more important over time, and I would like to use this customer to “get smart”, and prepare for future business of this sort.

 

Any practical knowledge would be greatly appreciated. I am happy to exchange information on commercial demand management offerings.

 

-          Peter

 

Peter T. Parrish, Ph.D.

President, SolarGnosis

1107 Fair Oaks Ave., Ste. 351

South Pasadena, CA 91030

(323) 839-6108 <tel:%28323%29%20839-6108> 

NABCEP Certified PV Installation Professional #031806-26

peter.parrish at solargnosis.com

 


_______________________________________________
List sponsored by Redwood Alliance

List Address: RE-wrenches at 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

 


_______________________________________________
List sponsored by Redwood Alliance

List Address: RE-wrenches at 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







 

-- 

Chris Mason

NABCEP Certified Solar PV Installer™

Solar Design Engineer

Generac Generators Industrial technician

 

www.cometsolar.com <http://www.cometenergysystems.com> 

264.235.5670

869.662.5670

Skype: netconcepts

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org/attachments/20160118/37fdfc6d/attachment-0002.html>


More information about the RE-wrenches mailing list