Duke Energy Corporation is one of the largest electric power companies in the United States. The company supplies electrical energy to more than 3 million customers. It has an electric generating capacity of over 30,000 megawatts North Carolina, South Carolina and the Midwest. The company provides natural gas distribution services in Ohio and Kentucky. Duke Energy Corporation also has nearly 4,000 megawatts of electric generation capacity in South America. It is publicly traded and a Fortune 500 member. The companys subsidiary, Duke Energy Generation Services, provides on-site energy solutions and utility services to customers throughout the United States. Duke Energy Corporation also has operations in Argentina, Brazil, Ecuador, El Salvador, Guatemala and Peru.