BOULDER CITY, Nev. -- The largest photovoltaic power plant in the U.S has started operating.
Sempra Generation, a subsidiary of San Diego-based power plant operator Sempra Energy, turned the switch on the 48-megawatt Copper Mountain solar facility in Boulder City, Nev., a week ago. The company says the Nevada plant can generate enough electricity -- when the sun is shining -- to power about 14,000 homes.
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