An $11 million solar panel canopy covers the parking lot across from the entrance to The Cincinnati Zoo Monday, May 9, 2011 in Cincinnati. The collection of 6,400 panels is designed to produce about ... more 
An $11 million solar panel canopy covers the parking lot across from the entrance to The Cincinnati Zoo Monday, May 9, 2011 in Cincinnati. The collection of 6,400 panels is designed to produce about one-fifth of the energy the park needs and help control its electric bill. The zoo says the 1.56 megawatt canopy is one of the country's largest urban solar arrays accessible to the public. less 
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Associated Press | Photo By Al Behrman
Mon, May 9, 2011 12:15 PM EDT