Hi Mark, I'd install as much PV as I could afford, a MPPT controller and a battery capacity meter to keep an eye on things. And if they are still looking to throw money around then a new generator as Allan suggested.
jay peltz power On Dec 3, 2009, at 9:22 AM, Mark Frye wrote: > Folks, > > I have a customer with a 3 year old system in northern CA: > > 8 - Deka 370AH, 6V, 2x4 banks - 740Ah @ 24V > 2 - DR2424 120/240V series > 4 - EC-120-GL > 1 - C40 CC > 1 - 5000W, old portable gas gen > > The problem is increased gen runtime probally due to chronic undercharging. > > Based on estimated consumption in the home, I think he needs about 2X the PV > to meet the energy production needs in the summer (5 kWH/day)(30% DOD/day). > But in order to get C10 charging during the summer he would need 5X the PV? > > Money is and issue. So what should I recommend: > > 1 - Increase PV 4X to 5X, add MPPT controller to get to a PV based system > with gen support > 2 - Get a 3K to 5K propane gen and and run as a gen based system with PV > support > 3 -? > > Mark Frye > Berkeley Solar Electric Systems > 303 Redbud Way > Nevada City, CA 95959 > (530) 401-8024 > www.berkeleysolar.com > > _______________________________________________ > List sponsored by Home Power magazine > > List Address: RE-wrenches@lists.re-wrenches.org > > Options & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out participant bios: > www.members.re-wrenches.org >
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