The Alamosa Solar Generating Plant is a 35.3 MWp (30.0 MWAC) concentrator photovoltaics (CPV) power station, the largest in the world when it was completed, in May 2012.
[3] The output is being sold to Public Service of Colorado, a subsidiary of Xcel Energy, under a long term Power Purchase Agreement.
Each module contains 1,080 Fresnel lenses to concentrate sunlight 500 times onto multi-junction solar cells, allowing a greater efficiency than conventional photovoltaic power plants.
In August 2016, Cogentrix sold the project for US$35 million to Korea Electric Power Corporation and its COPA pension fund, both of which are majority held by the South Korean government.
Findings of a 2013 NREL land use report showed CPV as having the highest land-energy-density potential of any photovoltaic technology surveyed in the United States, requiring an average 2.8 acres/GW·h/yr for power plants larger than 20 MW.