GenOn Energy is one of the largest wholesale producers of electricity in the US, founded in the December 2010 merger of Mirant Corporation and RRI Energy. Mirant’s CEO, Ed Muller, became the Chairman and CEO of GenOn.
Based out of Houston, the company employs around 3,400 people and operates forty-eight generating facilities in twelve states. GenOn has a total generating capacity of over 24,000 megawatts. The company’s power plants utilize various production technologies, but rely entirely on fossil fuels – coal (31%), natural gas (36%), oil (6%) and dual gas/oil (27%). The facilities are used for baseload, intermediate, and peaking production.