Western Area Power Administration

Sample of high-voltage transmission lines owned, operated and maintained by WAPA
Western Area Power Administration, as one of four power marketing administrations in the U.S. Department of Energy, is responsible for marketing and delivering wholesale federal hydropower to customers in 15 central and western states.

As one of the four power marketing administrations within the U.S. Department of Energy, the Western Area Power Administration (WAPA)'s role is to market wholesale hydropower generated at 57 hydroelectric federal dams operated by the Bureau of Reclamation, United States Army Corps of Engineers and the International Boundary and Water Commission. WAPA delivers this power through a more than 17,000-circuit-mile, high-voltage power transmission system to more than 700 preference power customers across the West. Those customers, in turn, provide retail electric service to more than 40 million consumers. WAPA is headquartered in the Denver, Colorado suburb of Lakewood, Colorado.[citation needed]

WAPA’s service territory spans 15 central and western states, including Arizona, California, Colorado, Iowa, Kansas, Minnesota, Montana, Nebraska, Nevada, New Mexico, North Dakota, South Dakota, Texas, Utah, and Wyoming.