AEP Texas Central Company, also known as TCC, provides electricity delivery services on behalf of Retail Electric Providers in southern Texas. AEP Texas Central Company is operated by AEP Texas, which delivers electricity to more than 900,000 homes, businesses and industries in Texas. AEP Texas is a unit of American Electric Power, which is one of the largest electric utilities in the United States. American Electric Power provides electricity to over 5 million customers in 11 U.S. states. It owns nearly 36,000 megawatts of generating capacity in the United States. The company operates approximately 39,000 miles of network. American Electric Power also operates AEP Ohio, Appalachian Power and Southwestern Electric Power Company.