EL SEGUNDO, Calif.-Aug. 2, 2013– NRG Energy, Inc. (NYSE: NRG), has entered commercial operation at its El Segundo Energy Center, a natural gas–fueled, combined-cycle generating facility located near Los Angeles, CA. The plant produces 550 megawatts (MW) of efficient and flexible electricity to the California grid – enough to supply power to nearly 450,000 homes. The fast-start, rapid response power generation employed by El Segundo delivers more than half of its generating capacity in less than 10 minutes