[greglindahl]

Yes, any place with a lot of solar (daytime) loves having electric cars plugged in during the day, and any place with a lot of wind (which often blows strongest at night) loves having electric cars plugged in at night.

And if the car has a big battery and doesn't need to charge to full all of the time, you can use solar or wind predictions to choose when to charge.

[WorldMaker]

And with some "smart grid" upgrades that are proposed, a busy electric grid could even "borrow" power from that big battery of a sitting car (with nowhere else to be) in periods of high demand and then repay what it borrowed, plus "interest" once demand drops.