Mary Powell, she calls herself an accidental CEO because she never planned a career in business. Raised in New York City with an actor father and just a two year degree, she worked her way to become the CEO of a major utility. Today, as CEO of Sunrun, she says she doesn't think of it as a solar company, but as America's energy company giving people independence, control, stability, and as she puts it, a better way to power their lives.A leader who says greatness comes from the alchemy of people. A CNBC chan ...