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November 26, 2021

Okuyoshino, Japan

By Carmen

Okuyoshino is a 1,206MW hydro power project. It is located on Setodani, Asahi river/basin in Nara, Japan. The project is currently active. It has been developed in single phase. The project construction commenced in 1971 and subsequently entered into commercial operation in 1978.

Project Type Total Capacity (MW) Active Capacity (MW) Pipeline Capacity (MW) Project Status Project Location Project Developer
Hydropower 1,206 1,206 Active Nara, Japan


The project is currently owned by The Kansai Electric Power.

Okuyoshino is a pumped storage project. The hydro reservoir capacity is 16.85 million cubic meter. The net head of the project is 505m.

Development Status

The project construction commenced in 1971 and subsequently entered into commercial operation in 1978.

Contractors Involved

Toshiba Hydro Power (Hanzhou) was selected as the turbine supplier for the hydro power project. The company provided 6 units of francis turbines.

Toshiba Energy Systems and Solutions supplied electric generator(s) for the project. The generator capacity is 220 MVA.


All power projects included in this report are drawn from GlobalData’s Power Intelligence Center. The information regarding the project parameters is sourced through secondary information sources such as electric utilities, equipment manufacturers, developers, project proponent’s – news, deals and financial reporting, regulatory body, associations, government planning reports and publications. Wherever needed the information is further validated through primary from various stakeholders across the power value chain and professionals from leading players within the power sector.

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