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The Yagisawa dam has a height of 131 meters and length of 352 meters. The dam impounds the Tone River and forms a reservoir with a capacity of 204,300,000 m³, catchment area of 167.4 km², and surface area of 570 hectares.

http://www3.toshiba.co.jp/power/english/hydro/products/pump/storage.htm


Open-loop Pumped Hydro Storage


240,000