<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">August,<div class=""><br class=""></div><div class="">There are applications where Lithium batteries are far more cost effective than lead batteries. We have off grid customers in Mexico using our LFMP battery systems. Because these are seasonal homes that are left for 6-8 months, there is no maintenance for many months. Every 2-3 years they ruin lead acid banks. For this application, LFMP batteries are ideal. Just turn the battery off and walk away. Come back in 8 months and it is right where you left it less about 1-2AH (EMS boards draw small current). Plus there is an advantage of less capacity degradation due to high summer temperatures. <div class=""><br class=""></div><div class="">The same thing applies for our RV customers that only use them for a few months each year.<br class=""><div apple-content-edited="true" class=""><div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div style="color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><br class="">Larry Crutcher<br class="">Starlight Solar Power Systems<br class=""><br class=""></div><div style="color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><br class=""><br class=""></div></div></div></div></div>
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<br class=""><div><div class="">On Jan 22, 2016, at 9:26 AM, August Goers <<a href="mailto:august@luminalt.com" class="">august@luminalt.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><meta http-equiv="Content-Type" content="text/html; charset=us-ascii" class=""><meta name="Generator" content="Microsoft Word 12 (filtered medium)" class=""><style class=""><!--
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--></style><div lang="EN-US" link="blue" vlink="purple" class=""><div class="WordSection1"><div class="MsoNormal"><span style="color: rgb(31, 73, 125); font-size: 11pt;" class="">...</span><span style="color: rgb(31, 73, 125); font-family: Calibri, sans-serif; font-size: 11pt;" class="">I’m not convinced that any of the other lithium products are ready for prime time. They are expensive and I don’t personally want to spend the time or money to experiment with them at this point</span><font color="#1f497d" face="Calibri, sans-serif" class="">…</font></div><div class="MsoNormal"><span style="color: rgb(31, 73, 125); font-family: Calibri, sans-serif; font-size: 11pt;" class=""><br class=""></span></div><div class="MsoNormal"><span style="color: rgb(31, 73, 125); font-family: Calibri, sans-serif; font-size: 11pt;" class="">Cheers,</span></div><div class=""><span style="color:#1f497d" class=""> </span><br class="webkit-block-placeholder"></div><div class="MsoNormal"><span style="color:#1f497d" class="">August</span></div><div class="MsoNormal"><span style="color:#1f497d" class="">Luminalt</span></div><div class=""><span style="color:#1f497d" class=""> </span><br class="webkit-block-placeholder"></div><div class=""><span style="color:#1f497d" class=""> </span><br class="webkit-block-placeholder"></div><div class=""><div style="border:none;border-top:solid #b5c4df 1.0pt;padding:3.0pt 0in 0in 0in" class=""><div class="MsoNormal"><b class=""><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"" class="">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"" class=""> RE-wrenches [mailto:<a href="mailto:re-wrenches-bounces@lists.re-wrenches.org" class="">re-wrenches-bounces@lists.re-wrenches.org</a>] <b class="">On Behalf Of </b>Peter Parrish<br class=""><b class="">Sent:</b> Sunday, January 17, 2016 11:07 AM<br class=""><b class="">To:</b> 'RE-wrenches'<br class=""><b class="">Cc:</b> <a href="mailto:peter.parrish@solargnosis.com" class="">peter.parrish@solargnosis.com</a><br class=""><b class="">Subject:</b> [RE-wrenches] Availability of Powerwall Batteries</span></div></div></div><div class=""> <br class="webkit-block-placeholder"></div><div class="MsoPlainText"><span style="font-size:12.0pt;font-family:"Calibri","sans-serif"" class="">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></div><div class=""><span style="font-size:12.0pt;font-family:"Calibri","sans-serif"" class=""> </span><br class="webkit-block-placeholder"></div><div class="MsoPlainText"><span style="font-size:12.0pt;font-family:"Calibri","sans-serif"" class="">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></div><div class=""><span style="font-size:12.0pt;font-family:"Calibri","sans-serif"" class=""> </span><br class="webkit-block-placeholder"></div><div class="MsoPlainText"><span style="font-size:12.0pt;font-family:"Calibri","sans-serif"" class="">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></div><div class=""><span style="font-size:12.0pt;font-family:"Calibri","sans-serif"" class=""> </span><br class="webkit-block-placeholder"></div><div class="MsoPlainText"><span style="font-size:12.0pt;font-family:"Calibri","sans-serif"" class="">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></div><div class=""><span style="font-size:12.0pt;font-family:"Calibri","sans-serif"" class=""> </span><br class="webkit-block-placeholder"></div><div class="MsoPlainText"><span style="font-size:12.0pt;font-family:"Calibri","sans-serif"" class="">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></div><div class=""><span style="font-size:12.0pt;font-family:"Calibri","sans-serif"" class=""> </span><br class="webkit-block-placeholder"></div><div class="MsoPlainText"><span style="font-size:12.0pt;font-family:"Calibri","sans-serif"" class="">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></div><div class=""><span style="font-size:12.0pt;font-family:"Calibri","sans-serif"" class=""> </span><br class="webkit-block-placeholder"></div><div class="MsoPlainText"><span style="font-size:12.0pt;font-family:"Calibri","sans-serif"" class="">Any practical knowledge would be greatly appreciated. I am happy to exchange information on commercial demand management offerings.</span></div><div class=""><span style="font-size:12.0pt;font-family:"Calibri","sans-serif"" class=""> </span><br class="webkit-block-placeholder"></div><p class="MsoPlainText" style="margin-left:.5in"><span style="font-size:12.0pt;font-family:"Calibri","sans-serif"" class=""><span style="mso-list:Ignore" class="">-<span style="font:7.0pt "Times New Roman"" class=""> </span></span></span><span style="font-size:12.0pt;font-family:"Calibri","sans-serif"" class="">Peter</span></p><div class=""><span style="font-size:12.0pt;font-family:"Calibri","sans-serif"" class=""> </span><br class="webkit-block-placeholder"></div><div class="MsoPlainText"><span style="font-size:12.0pt;font-family:"Calibri","sans-serif"" class="">Peter T. Parrish, Ph.D.</span></div><div class="MsoPlainText"><span style="font-size:12.0pt;font-family:"Calibri","sans-serif"" class="">President, SolarGnosis</span></div><div class="MsoPlainText"><span style="font-size:12.0pt;font-family:"Calibri","sans-serif"" class="">1107 Fair Oaks Ave., Ste. 351</span></div><div class="MsoPlainText"><span style="font-size:12.0pt;font-family:"Calibri","sans-serif"" class="">South Pasadena, CA 91030</span></div><div class="MsoPlainText"><span style="font-size:12.0pt;font-family:"Calibri","sans-serif"" class="">(323) 839-6108</span></div><div class="MsoPlainText"><span style="font-size:12.0pt;font-family:"Calibri","sans-serif"" class="">NABCEP Certified PV Installation Professional #031806-26</span></div><div class="MsoPlainText"><span style="font-size:12.0pt;font-family:"Calibri","sans-serif"" class=""><a href="mailto:peter.parrish@solargnosis.com" class="">peter.parrish@solargnosis.com</a></span></div><div class=""> </div></div></div><br class=""></div></div><br class=""></div></div></body></html>