President Barack Obama points to the sun while touring Sempra's Copper Mountain Solar 1 facility, Wednesday, March 21, 2012, in Boulder City, Nev. Also with Obama are company officials John Sowers, ... more 
President Barack Obama points to the sun while touring Sempra's Copper Mountain Solar 1 facility, Wednesday, March 21, 2012, in Boulder City, Nev. Also with Obama are company officials John Sowers, left, and Jeffrey Martin, right, CEO, Sempra U.S. Gas & Power. (AP Photo/Pablo Martinez Monsivais) less 
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Associated Press | Photo By Pablo Martinez Monsivais
Wed, Mar 21, 2012 5:49 PM EDT