東京電力
After the war, Japan Electric Generation and Transmission was designated to be broken up under the Economic Decentralization Act, and in 1951 was split into 9 smaller electric companies. The hydroelectric plants around Lake Inawashiro were placed under the management of Tokyo Electric Power Company, Inc., where they remain today. Tokyo Electric Power Company has adjusted the water level of Akimoto Lake in compliance with requests from Fukushima Prefecture.