NRG Energy, Inc. (NRG) is an integrated wholesale power generation and retail electricity company in the United States. NRG is a wholesale power generator engaged in the ownership and operation of power generation facilities; the trading of energy, capacity and related products; and the transacting in and trading of fuel and transportation services. NRG is a retail energy company engaged in the supply of energy, services, and sustainable products to retail customers in competitive markets through multiple channels and brands like Reliant Energy, Green Mountain Energy, and Energy Plus (collectively, the Retail Business). Finally, NRG is focused on the deployment and commercialization of potentially disruptive technologies, like electric vehicles, Distributed Solar and smart meter technology, which have the potential to change the nature of the power supply industry. On December 14, 2012, the Company and GenOn Energy, Inc .have completed their merger.