Tesla buying SolarCity is a dangerous risk that could totally pay off for Elon Musk

Yesterday afternoon, Elon Musk announced that Tesla, a company he founded and currently runs, was offering to buy Solar City, another company he founded, and where he is currently chairman of the board. In a conference call with investors this morning, Musk rationalized the roughly $2.86 billion purchase like this: "When we’re selling someone the Powerwall very often, if not almost always, they are curious about solar," Musk said. "So then not being able to sell them solar directly at Tesl