Lyndon Rive, 37

The South African native (and cousin of Tesla CEO Elon Musk) is co-founder and CEO of SolarCity, the largest installer of solar panels in the U.S. (See related story for more, here) The San Mateo, Calif. Company’s leasing revenue (the main driver of its business) was up 110% last quarter; after going public in 2012 at $8 a share, it traded recently at $60, giving it a $5.5 billion market value.
VIDEO
SolarCity’s Burning Man roots
SolarCity CEO Lyndon Rive tells Fortune’s Brian Dumaine about how he and cousin Elon Musk hatched the idea for the solar company on their way to Burning Man. Read more about Lyndon Rive, here