Duke Energy is an American electric power and natural gas holding company headquartered in Charlotte, North Carolina.
Based in Charlotte, North Carolina, Duke Energy owns 58,200 megawatts of base-load and peak generation in the United States, which it distributes to its 7.2 million customers. The company has approximately 29,000 employees. Duke Energy's service territory covers 104,000 square miles (270,000 km2) with 250,200 miles (402,700 km) of distribution lines. Almost all of Duke Energy's Midwest generation comes from coal, natural gas, or oil, while half of its Carolinas generation comes from its nuclear power plants. During 2006, Duke Energy generated 148,798,332 megawatt-hours of electrical energy.
Duke Energy Renewable Services (DERS), a subsidiary of Duke Energy, specializes in the development, ownership, and operation of various generation facilities throughout the United States. This segment of the company operates 1,700 megawatts of generation. 240 megawatts of wind generation were under construction and 1,500 additional megawatts of wind generation were in planning stages. On September 9, 2008, DERS updated its projections for future wind power capacity. By the end of 2008, it would have over 500 MW of nameplate capacity of wind power online, and an additional 5,000 MW in development.