There's some interesting work going on in this field. UCSD is trying to power some of their buildings using a solar array and a parking lot of cheap/donated Ni

There's some interesting work going on in this field. UCSD is trying to power some of their buildings using a solar array and a parking lot of cheap/donated Nissan Leafs with "dead" batteries. The cars can't be driven anywhere useful, but the batteries still hold some charge, which they're trying to create an aggregate power-storage array from as a POC. The economical solution may well be distributed power storage. Like BitTorrent, but for electricity ;)