Duke Energy (NYSE:_DUK), headquartered in Charlotte, North Carolina, is an electric utility company with assets in the United States, Canada and Latin America. Based in Charlotte, North Carolina, Duke Energy owns 36,000 megawatts of base-load and peak generation in the United States, which it distributes to its 4 million customers. Duke Energy's service territory covers 47,000 square miles (120,000 km) with 106,000 miles (171,000 km) of distribution lines. In addition, Duke Energy has more than 4,000 megawatts of electric generation in Latin America. It operates eight hydroelectric power plants in Brazil with an installed capacity of 2,307 megawatts. 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.
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