FILE - In this April 30, 2015, file photo, Tesla Motors CEO Elon Musk unveils the company's newest products, in Hawthorne, Calif. Electric car maker Tesla has added another product to its lineup: Solar roof tiles. As of Wednesday, May 10, 2017, customers worldwide could order a solar roof on Tesla's website. (AP Photo/Ringo H.W. Chiu, File)
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