Saku is a 77MW hydro power project. It is located on Tone, Agatsumagawa, Numaogawa river/basin in Gunma, Japan. According to GlobalData, who tracks and profiles over 170,000 power plants worldwide, the project is currently active. It has been developed in a single phase. Post completion of construction, the project got commissioned in 1928. Buy the profile here.


The project is currently owned by Tokyo Electric Power Co Holdings.

Saku is a run-of-river project. The hydro reservoir capacity is 18.16 million cubic meter.

The hydro power project consists of 3 turbines.

The hydro power project consists of 1 turbine.

The project has 4 electric generators installed at the site.

Development status

The project got commissioned in 1928.

For more details on Saku, buy the profile here.


GlobalData, the leading provider of industry intelligence, provided the underlying research used to produce this article.

This information is drawn from GlobalData’s Power Intelligence Center, which provides detailed profiles of over 170,000 active, planned and under construction power plants worldwide from announcement through to operation across all technologies and countries worldwide.