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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoPlainText><span style='font-size:12.0pt;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. <o:p></o:p></span></p><p class=MsoPlainText><span style='font-size:12.0pt;font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p><p class=MsoPlainText><span style='font-size:12.0pt;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.<o:p></o:p></span></p><p class=MsoPlainText><span style='font-size:12.0pt;font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p><p class=MsoPlainText><span style='font-size:12.0pt;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? <o:p></o:p></span></p><p class=MsoPlainText><span style='font-size:12.0pt;font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p><p class=MsoPlainText><span style='font-size:12.0pt;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). <o:p></o:p></span></p><p class=MsoPlainText><span style='font-size:12.0pt;font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p><p class=MsoPlainText><span style='font-size:12.0pt;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.<o:p></o:p></span></p><p class=MsoPlainText><span style='font-size:12.0pt;font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p><p class=MsoPlainText><span style='font-size:12.0pt;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.<o:p></o:p></span></p><p class=MsoPlainText><span style='font-size:12.0pt;font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p><p class=MsoPlainText><span style='font-size:12.0pt;font-family:"Calibri","sans-serif"'>Any practical knowledge would be greatly appreciated. I am happy to exchange information on commercial demand management offerings.<o:p></o:p></span></p><p class=MsoPlainText><span style='font-size:12.0pt;font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p><p class=MsoPlainText style='margin-left:.5in;text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span style='font-size:12.0pt;font-family:"Calibri","sans-serif"'><span style='mso-list:Ignore'>-<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span style='font-size:12.0pt;font-family:"Calibri","sans-serif"'>Peter<o:p></o:p></span></p><p class=MsoPlainText><span style='font-size:12.0pt;font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p><p class=MsoPlainText><span style='font-size:12.0pt;font-family:"Calibri","sans-serif"'>Peter T. Parrish, Ph.D.<o:p></o:p></span></p><p class=MsoPlainText><span style='font-size:12.0pt;font-family:"Calibri","sans-serif"'>President, SolarGnosis<o:p></o:p></span></p><p class=MsoPlainText><span style='font-size:12.0pt;font-family:"Calibri","sans-serif"'>1107 Fair Oaks Ave., Ste. 351<o:p></o:p></span></p><p class=MsoPlainText><span style='font-size:12.0pt;font-family:"Calibri","sans-serif"'>South Pasadena, CA 91030<o:p></o:p></span></p><p class=MsoPlainText><span style='font-size:12.0pt;font-family:"Calibri","sans-serif"'>(323) 839-6108<o:p></o:p></span></p><p class=MsoPlainText><span style='font-size:12.0pt;font-family:"Calibri","sans-serif"'>NABCEP Certified PV Installation Professional #031806-26<o:p></o:p></span></p><p class=MsoPlainText><span style='font-size:12.0pt;font-family:"Calibri","sans-serif"'>peter.parrish@solargnosis.com<o:p></o:p></span></p><p class=MsoPlainText><o:p> </o:p></p></div></body></html>