Public Service Enterprise Group Incorporated (PSEG) is a US power company engaged in the generation, distribution and transmission of electric power. The company's main operations are located in the Northeastern and Mid-Atlantic United States. It has nearly 13,466 MW in generation capacity from nuclear, coal, gas, oil-fired, and renewable generation facilities. The company was incorporated in 1903 and is based in Newark, New Jersey, United States. Its operating subsidiaries are Public Service Electric and Gas (PSE&G), PSEG Power, PSEG Long Island, and PSEG Services Corporation.