Tambara Dam, Power station and embankment dam in Numata, Japan
The Tambara Dam combines an embankment structure with a pumped-storage power station, featuring four reversible Francis turbine generators producing 1,200 megawatts of electricity.
Construction of the dam began in 1973, with completion in 1981, followed by the power station commissioning in 1986 as part of Japan's hydroelectric infrastructure development.
The facility represents Japan's commitment to sustainable energy solutions, providing power generation while maintaining environmental balance in the Gunma Prefecture region.
The dam operates by pumping water between two reservoirs, with the upper reservoir at 1,177 meters elevation and the lower Fujiwara Reservoir at 651 meters.
The power station can move 210 cubic meters of water per second during pumping operations and discharge 276 cubic meters per second for power generation.
Location: Numata
Inception: 1981
Website: https://tepco.co.jp/rp/business/hydroelectric_power/mechanism/dam/list/tanbara.html
GPS coordinates: 36.77470,139.06300
Latest update: March 15, 2025 13:32
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