By the end of 2011 SunEdison will design and construct five ground-mounted solar photovoltaic power plants to generate a total of 50MW (AC) in New Mexico for Southwestern Public Service, a regional operating company of Xcel Energy. The five 10MW sites will be located in Lea and Eddy counties in the southeastern part of the state. The five installations will be built, financed, and maintained by SunEdison (a subsidiary of MEMC), under a 20-year solar power services agreement with Xcel, which will buy the power generated by the plant.