Sempra Generation Completes 48 Megawatt Photovoltaic Solar Farm Near Las Vegas

San Diego-based Sempra Generation announced Wednesday that workers have finished building a 48-megawatt photovoltaic solar farm 40 miles southeast of Las Vegas.

The plant’s output will be sold the Pacific Gas & Electric.

It is located next to a 10-megawatt solar farm and a 480-megawatt natural-gas plant.

Sempra says the plant, which covers more than half a square mile, is the biggest of its kind in the United States. It was built in less than a year by First Solar of Tempe, Ariz., which also supplied the solar panels.