Dynegy Inc., through its subsidiaries, produces and sells electric energy, capacity, and ancillary services in the United States. It operates in six segments: PJM, NY/NE, ERCOT, MISO, IPH, and CAISO. The company sells its services on a wholesale basis from its power generation facilities. It has a fleet of 50 power plants in 12 states totaling approximately 31,000 megawatts of generating capacity. The company serves a range of customers, including regional transmission organizations, independent system operators, integrated utilities, municipalities, electric cooperatives, transmission and distribution utilities, and power marketers; financial participants, such as banks and hedge funds; and residential, commercial, and industrial end-users. Dynegy Inc. was founded in 1984 and is headquartered in Houston, Texas.