For more than seven decades, TVA has been improving the quality of life in the Tennessee Valley through its threefold mission of providing affordable and reliable power, promoting sustainable economic development, and acting as a steward of the Valley's natural resources. TVA is the nation’s largest public power company, with 33,000 megawatts of dependable generating capacity. Through 158 locally owned distributors, TVA provides power to nearly 8.5 million residents of the Tennessee Valley.

Source: http://www.tva.gov/