Fascinating profile of
Shai Agassi who’s introducing replaceable batteries for the auto industry. Part of his theory is that selling the “energy” is very profitable.

>But Agassi realized he needed one more breakthrough: some way to rapidly charge a vehicle. No drivers, he knew, will tolerate a two-hour wait to recharge when they’re on a 500-mile haul. Then one day, he and an automotive engineer were chewing over an impractical method for quickly replenishing batteries. The engineer wondered aloud: Wouldn’t the fastest way to charge an electric car be to simply replace the battery?