The cascade of hydroelectric powerplants was built in the 1960s–1970s on the Angara River, a project similar to Tennessee Valley Authority in the United States. The powerplants allowed creation and support of large production facilities, such as the aluminium plant in Bratsk, Ust-Ilimsk, rare-earth mining in Angara basin, and those associated with the timber industry. The price of electricity in Angara basin is the lowest in Russia. But the Angara cascade is not fully finished yet: the Boguchany power plant waits to be finished, and a series of enterprises will be set up.