EcoWatch: Its only been a month since Elon Musk unveiled a game-changing suite of batteries for businesses, homes and utilities to help wean the world off fossil fuels. And now, the Tesla CEO is already upping the ante with the Powerwall, a home battery that charges using electricity generated from solar power.
"We`ve dramatically increased the power capability of the Powerwall," Musk said at Tesla`s annual stockholders` meeting in Mountain View, California this week. "It basically more than doubled the...