Alabama Power Company, headquartered in Birmingham, Alabama, is a company in the southern United States that provides electricity service to 1.4 million customers in the southern two-thirds of Alabama. It also operates appliance stores. It is one of four U.S. utilities operated by the Southern Company, one of the nation’s largest generators of electricity. Alabama Power is an investor-owned, tax-paying utility, and the second largest subsidiary of Southern Company. More than 78,000 miles (126,000 km) of power lines carry electricity to customers throughout 44,500 square miles (115,000 km2). Alabama Power is the largest taxpayer in Alabama. If the company was a stand-alone entity (as opposed to a subsidiary), it would be the largest company headquartered in Alabama by revenue (currently it is Regions Bank) and would rank #448 on the 2015 Fortune 500. Alabama Power’s hydroelectric generating plants encompass several lakes on the Tallapoosa, Coosa, and Black Warrior rivers, as well as coal, oil, natural gas, nuclear and cogeneration plants in various parts of the state. In addition to generating electricity, the waters surrounding the plants offer recreational opportunities for Alabama residents and visitors.