[wbill]

Some quick, back-of-the-envelope calculations, at 33.7kwh per gallon of gas, shows that 2 cars in a household consuming 80 gal of gas a month (10 gal a week times 4 weeks times 2) equaling 2696 kwh of energy....

...Consume three times as much energy as the actual "average" household itself - 915 kwh/month of electricity. Numbers from Google.

So -

Better batteries with longer range and more charging stations, while necessary, have little to do with the problem.

Before any large scale replacement can happen, utilities need to ramp up residential electric production by at least threefold. AND, they need to figure out a way to get all of that electricity downstream to the consumer.

Ford and GM can spit out all of the electric cars they want. Won't matter, if they're plugged in and there's no juice.

[NorthMountain]

Wikipedia has an interesting entry on Energy Density.

Very interesting.