
As of 2018, they generate 23,000 MW of power from 40 power plants across the country.

NRG Energy has acquired eleven other energy companies, both generation and retail, that include Reliant Energy, XOOM Energy, Green Mountain Energy, Stream Energy, Discount Power and Cirro Energy. NRG serves 6 million retail customers in 24 US states including Texas, Connecticut, Delaware, Illinois, Maryland, Massachusetts, New Jersey, New York, Pennsylvania, Ohio the District of Columbia, and eight provinces in Canada. Their portfolio includes natural gas generation, coal generation, oil generation, nuclear generation, wind generation, utility scale generation, and distributed solar generation. NRG Energy is involved in energy generation and retail electricity.


It was formerly the wholesale arm of Northern States Power Company (NSP), which became Xcel Energy, but became independent in 2000. is an American energy company, headquartered in Houston, Texas.
