Another interesting idea: Even in the absence of home-based electricity generation, the cost of energy varies based on time of day and based on season. In a l

Another interesting idea: Even in the absence of home-based electricity generation, the cost of energy varies based on time of day and based on season. In a lot of areas, power used at 6pm is more expensive than power used at 3am. So in cases where this discrepancy is greater than 3 cents/kW-H, it would make sense to have this battery charge up and 3am to handle your evening power usage.