Decentralized energy storage does seem like one solution to the mismatch between renewable energy inflow, and energy usage. EV batteries certainly have the capa

Decentralized energy storage does seem like one solution to the mismatch between renewable energy inflow, and energy usage. EV batteries certainly have the capacity (har har) to support a household during the low-generation times or to "cut the tops" off peak demand. This approach though presupposes that everyone lives in suburban dwellings with garages/driveways, which is at odds with the more sustainable, higher density living scenarios (eg, urban centers) where public transit / alternate transportation usage is higher, and there is less space for personal cars. Eg someone on the 5th floor of a walkup is not going to run a cable from their window to their car parked at the other end of the block. I think solutions like the Powerwall (or other brands' equivalents) might be a better way to go.