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<div class=Section1>
<p class=MsoNormal><span style='font-size:11.0pt'>SE and SunPower are
compatible. SunPower has recently started providing SE through their
residential dealer channel.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt'><o:p> </o:p></span></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> RE-wrenches
[mailto:re-wrenches-bounces@lists.re-wrenches.org] <b>On Behalf Of </b>Kirk
Herander<br>
<b>Sent:</b> Monday, January 18, 2016 4:44 AM<br>
<b>To:</b> 'RE-wrenches'<br>
<b>Subject:</b> Re: [RE-wrenches] Availability of Powerwall Batteries<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='font-size:18.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>I’m not sure the Powerwall actually exists yet. Our utility,
Green mountain Power, has announced a pilot program using them in selected
residential applications, but they have no product at this point to my
knowledge.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:18.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>And I don’t think SE optimizers are compatible with Sunpower, if
not for other reasons using a SMA inverter. Aren’t they unique to the SE
inverter only?<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:18.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><b><span style='font-size:16.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Kirk Herander<o:p></o:p></span></b></p>
<p class=MsoNormal><b><span style='font-size:16.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Owner|Principal, VT Solar, LLC <o:p></o:p></span></b></p>
<p class=MsoNormal><b><i><span style='font-size:16.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Celebrating our 25<sup>th</sup> Anniversary 1991-2016<o:p></o:p></span></i></b></p>
<p class=MsoNormal><b><span style='font-size:16.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><a href="www.vermontsolarnow.com">www.vermontsolarnow.com</a><o:p></o:p></span></b></p>
<p class=MsoNormal><span style='font-size:16.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>dba Vermont Solar Engineering<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:16.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>NABCEP<sup>TM </sup>2003 Inaugural Certificant<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:16.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>VT RE Incentive Program Partner<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:16.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>802.863.1202</span><span style='font-size:14.0pt;font-family:
"Calibri","sans-serif";color:#1F497D'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:18.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:18.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> RE-wrenches
[mailto:re-wrenches-bounces@lists.re-wrenches.org] <b>On Behalf Of </b>Peter
Parrish<br>
<b>Sent:</b> Sunday, January 17, 2016 7:44 PM<br>
<b>To:</b> 'RE-wrenches'<br>
<b>Subject:</b> Re: [RE-wrenches] Availability of Powerwall Batteries<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>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?<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>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. <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo2'><![if !supportLists]><span
style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><span
style='mso-list:Ignore'>-<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Peter<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Peter T. Parrish, Ph.D.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>President, SolarGnosis<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>1107 Fair Oaks Ave.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Suite 351<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>South Pasadena, CA 91030<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>(323) 839-6108<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><a href="mailto:petertor@pobox.com">petertor@pobox.com</a><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> RE-wrenches <a
href="mailto:[mailto:re-wrenches-bounces@lists.re-wrenches.org]">[mailto:re-wrenches-bounces@lists.re-wrenches.org]</a>
<b>On Behalf Of </b>Dan Fink<br>
<b>Sent:</b> Sunday, January 17, 2016 11:38 AM<br>
<b>To:</b> RE-wrenches<br>
<b>Subject:</b> Re: [RE-wrenches] Availability of Powerwall Batteries<o:p></o:p></span></p>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<div>
<div>
<p class=MsoNormal>Have you looked into SonnenBatterie? To which a number of
Tesla execs have recently bailed out to work for?<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>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. <o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>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.<o:p></o:p></p>
</div>
</div>
<div>
<p class=MsoNormal><br clear=all>
<o:p></o:p></p>
<div>
<div>
<div>
<div>
<div>
<div>
<div>
<div>
<p class=MsoNormal><span style='font-size:9.5pt'>Dan Fink</span><o:p></o:p></p>
<div>
<p class=MsoNormal><span style='font-size:9.5pt'>Adjunct Professor, Ecotech
Institute<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:9.5pt'>IREC Certified Instructor™
for: <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:9.5pt'>~ PV Installation Professional<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:9.5pt'>~ Small Wind Installer<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:9.5pt'>Executive Director, Buckville
Energy<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:9.5pt'>NABCEP Accredited Continuing
Education Providers™<br>
<a href="tel:970.672.4342" target="_blank"><span style='color:#1155CC'>970.672.4342</span></a><o:p></o:p></span></p>
</div>
<p class=MsoNormal><br>
<o:p></o:p></p>
</div>
</div>
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<p class=MsoNormal><o:p> </o:p></p>
<div>
<p class=MsoNormal>On Sun, Jan 17, 2016 at 12:06 PM, Peter Parrish <<a
href="mailto:peter.parrish@calsolareng.com" target="_blank">peter.parrish@calsolareng.com</a>>
wrote:<o:p></o:p></p>
<div>
<div>
<p><span style='font-family:"Calibri","sans-serif"'>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. </span><o:p></o:p></p>
<p><span style='font-family:"Calibri","sans-serif"'> </span><o:p></o:p></p>
<p><span style='font-family:"Calibri","sans-serif"'>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.</span><o:p></o:p></p>
<p><span style='font-family:"Calibri","sans-serif"'> </span><o:p></o:p></p>
<p><span style='font-family:"Calibri","sans-serif"'>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? </span><o:p></o:p></p>
<p><span style='font-family:"Calibri","sans-serif"'> </span><o:p></o:p></p>
<p><span style='font-family:"Calibri","sans-serif"'>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).
</span><o:p></o:p></p>
<p><span style='font-family:"Calibri","sans-serif"'> </span><o:p></o:p></p>
<p><span style='font-family:"Calibri","sans-serif"'>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.</span><o:p></o:p></p>
<p><span style='font-family:"Calibri","sans-serif"'> </span><o:p></o:p></p>
<p><span style='font-family:"Calibri","sans-serif"'>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.</span><o:p></o:p></p>
<p><span style='font-family:"Calibri","sans-serif"'> </span><o:p></o:p></p>
<p><span style='font-family:"Calibri","sans-serif"'>Any practical knowledge
would be greatly appreciated. I am happy to exchange information on commercial
demand management offerings.</span><o:p></o:p></p>
<p><span style='font-family:"Calibri","sans-serif"'> </span><o:p></o:p></p>
<p style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>-</span><span
style='font-size:7.0pt'> </span><span
style='font-family:"Calibri","sans-serif"'>Peter</span><o:p></o:p></p>
<p><span style='font-family:"Calibri","sans-serif"'> </span><o:p></o:p></p>
<p><span style='font-family:"Calibri","sans-serif"'>Peter T. Parrish, Ph.D.</span><o:p></o:p></p>
<p><span style='font-family:"Calibri","sans-serif"'>President, SolarGnosis</span><o:p></o:p></p>
<p><span style='font-family:"Calibri","sans-serif"'>1107 Fair Oaks Ave., Ste.
351</span><o:p></o:p></p>
<p><span style='font-family:"Calibri","sans-serif"'>South Pasadena, CA 91030</span><o:p></o:p></p>
<p><span style='font-family:"Calibri","sans-serif"'><a
href="tel:%28323%29%20839-6108" target="_blank">(323) 839-6108</a></span><o:p></o:p></p>
<p><span style='font-family:"Calibri","sans-serif"'>NABCEP Certified PV
Installation Professional #031806-26</span><o:p></o:p></p>
<p><span style='font-family:"Calibri","sans-serif"'><a
href="mailto:peter.parrish@solargnosis.com" target="_blank">peter.parrish@solargnosis.com</a></span><o:p></o:p></p>
<p> <o:p></o:p></p>
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