Especially for this group of people, who are used to making do with resources as they come, there was a very interesting concept article in HomePower, Issue #186, July / August 2018, called DayLight Drive by Alexis Zeigler • Living Energy Farm, Louisa, Virginia. https://www.homepower.com/articles/solar-electricity/equipment-products/mailbox-daylight-drive The concept is in minimizing the expense of battery storage by using sun… well “DayLight” as it happens. I think the concept is particularly relevant to situations like you are describing and in developing countries. But also more to us as we look to the role of storage in general. Thanks for the thoughts, Alexis. Bill Dorsett Flint Hills Renewable Energy & Efficiency Cooperative, Inc. “Start where you are. Use what you have. Do what you can” Arthur Ashe 1715 Leavenworth Manhattan, KS 66502 <http://www.fhreec.org/> www.fhreec.org 785/539-1956 Office 785/564-2583 Cell <mailto:wmdors...@cox.net> wmdors...@cox.net From: RE-wrenches <re-wrenches-boun...@lists.re-wrenches.org> On Behalf Of Peter Parrish Sent: Saturday, December 08, 2018 5:27 PM To: RE-wrenches <re-wrenches@lists.re-wrenches.org> Subject: [RE-wrenches] Portable Power Centers We are working with Turning Point Foundation a 501(c)3 to provide off-grid power for their River Haven project which is providing transitional housing for homeless folks in the Ventura CA area. The site is truly off-grid and currently uses propane to power three refrigerators and cook stoves. There is no space heating for the single occupancy rooms as of yet. But that’s another problem. We are looking to specify DC refrigerators and PV-powered battery storage for the River Haven project. We are looking at the Goal Zero Yeti-3000 system (3000 Whr, 500 full discharge cycles, to 80% residual capacity) at a sale price of $2,400 but are finding the extra cost of their PV modules quite steep. And looking at other 36-cell (12 volt) modules, I can’t find anything for less than $1.10/W. Since Goal Zero is looking at the recreational market, I thought that there might be other companies with comparable product offerings that are focusing on other markets like developing countries. Any advice would be appreciated and you may contact us off-line. Peter T. Parrish SolarGnosis 1107 Fair Oaks Ave. Ste. 351 South Pasadena, CA 91030 (323) 839-6108 peter.parr...@solargnosis.com <mailto:peter.parr...@solargnosis.com>
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