FILE - In this June 22, 2012 file photo, Tesla CEO Elon Musk waves during a rally at the Tesla factory in Fremont, Calif. Tesla Motors has selected Nevada for a massive, $5 billion factory that it will build to pump out batteries for a new generation of electric cars, a person familiar with the company's plans said Wednesday, Sept. 3, 2014. (AP Photo/Paul Sakuma, File)