I'd disagree with having batteries in people's homes. They produce heat, require space (which has a cost), require maintenance and an inverter, they are not fau

I'd disagree with having batteries in people's homes. They produce heat, require space (which has a cost), require maintenance and an inverter, they are not fault tolerant, they'd be a massive risk to people in the event of a fire (would you like to be a fireman going into a home that had a massive Li-ion battery in?). A better place would be at the generation source with substation batteries for smoothing out blips.