Energy From Lightning Bolt?

TIL that lightning bolts don't generate that much energy. (Via Gus Van Horn.)

But even at 1 million joules, the typical lightning strike contains only about ¼ of a kilowatt-hour of power, which is not enough to make much difference on our electric bill. "We currently buy electricity at the cost of about 20 cents a kWh," [MIT electrical engineering professor James Kirtly] says. "The amount of energy from a lightning bolt would be worth only about a nickel."