Comment by robertskmiles

Regarding storage, I've read some interesting things about the potential of electric vehicles here. If every car were electric, that's a massive array of large efficient batteries connected to the grid. If utility companies charge varying amounts at different times, depending on supply, you could imagine a smart charger for your car whereby you buy electricity when it's cheap, store it in the battery, and sell it back for a profit when the price goes up (or just use the power in your home, reducing the amount you buy from the grid - the effect is the same). The utility company is effectively renting your electric car battery as short term storage.