[jnw2]

If we manage to get cheap solar and cheap batteries, the usage pattern is probably going to be more like: top off batteries at work during the day, drive home, partially drain car batteries out to grid while the sun doesn't shine overnight, drive to work on what remains in the car batteries.

NIMBYism wrt adding new long haul transmission lines is likely to favor solar cells on many roofs if the cost of the solar cells come down enough.