Workers continue to build rows of solar panels at a Mesquite Solar 1 facility under construction Friday, Sept. 30, 2011, in Arlington, Ariz. The new solar facility is part of a $1 billion Energy ... more 
Workers continue to build rows of solar panels at a Mesquite Solar 1 facility under construction Friday, Sept. 30, 2011, in Arlington, Ariz. The new solar facility is part of a $1 billion Energy Department loan guarantee, of which $337 million is going to Mesquite Solar 1, for the 150 megawatt solar facility. (AP Photo/Ross D. Franklin) less 
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Associated Press | Photo By Ross D. Franklin
Fri, Sep 30, 2011 5:09 PM EDT