Danelle Hutton works on her laptop computer (L) in her open cubicle at the U.S. National Renewable Energy Laboratory Research Support Facility (RFS) in Golden, Colorado September 4, 2013. Workers use ... more 
Danelle Hutton works on her laptop computer (L) in her open cubicle at the U.S. National Renewable Energy Laboratory Research Support Facility (RFS) in Golden, Colorado September 4, 2013. Workers use laptops instead of traditional tower computers to save energy and reduce heat and have low walled cubicles to improve air flow. The 800 occupants of the RFS building consume only the amount of energy generated by renewable power on and near the building. REUTERS/Rick Wilking (UNITED STATES - Tags: ENVIRONMENT ENERGY) less 
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Reuters | Photo By RICK WILKING / REUTERS
Mon, Sep 9, 2013 12:44 PM EDT