Another view of the batteries

This is a side view of the battery racks. There are a total of 32 Surrette 460 Ahr deep cycle 6v batteries, which store enough electricity to power the house for three days if there weren't any wind or sun. If needed, the batteries can also be charged using a gas powered generator, but last winter (2007-8) we only had to run the generator about 12 hours. December and January are the months when we produce the least amount of energy. The 48 volt battery bank feeds the Outback inverter which produces 115V AC. This is routed through an autotransformer, also supplied by Outback to produce 240 Volts AC. A standard service panel is used to provide standard house wiring.