We do pretty much what Bob says. We have a 9.6 kW solar array which is grid-intertied. We have time-of-day metering and are pretty much net-zero, even with charging our Chevy Volt. (Our home is Passive House-certified and all-electric.)
We also keep 6 to 8 100-Amp old batteries on trickle charge, and as many 300 Watt pure-sine wave inverters. In the event of a blackout, the battery/inverter pairs get spread out around the house. That keeps us lit up for up to a 12-hour blackout. For more extended blackouts we have a quiet 3500W pure-sine wave gasoline-fueled generator. We usually keep enough fuel on hand for a couple of days. It's a lot less expensive that a PowerWall or other similar alternatives. Len Moskowitz ----- > Robert Bruninga wrote: > ...A $250 generator and a $15 can of gas is far more cost effective > to produce a few dollars worth of power outage comapred to a $13,000 > battery to produce $2 worth of power (a 14 hour outage)... Bob _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA)