Barry Fischer and Ben Harack:

By day, electric vehicles are taking the world by storm: their sales are doublingevery year, their fuel efficiency is off the charts, and some of them can even accelerate from 0-60 mph about as fast as you can say “Elon Musk.”

By night, the electric vehicle (EV) community continues to make waves. While you are in bed dreaming about how you too might own an electric car someday, many EV owners are doing something that is reshaping the energy landscape.

They are using gobs of electricity.

Today we once again crack open Opower’s energy data storehouse — the world’s largest, spanning more than 50 million households worldwide — to examine the energy usage behavior of an increasingly important segment of utility customers: electric car owners who charge their car in the wee hours of the night.

Via Matt Grantham.