About Us

Partial Restoration of the Shinanogawa Power Station

East Japan Railway Company

January 31, 2005

In October 2004, the Shinanogawa Power Station (comprising the Senju, Ojiya, and Shin-Ojiya power plants) suffered damage from the Niigata Chuetsu Earthquake and was taken off line. Since then, some restored facilities have been determined to be sound, and we are pleased to announce that power generation has partially resumed.

  • On January 17, the Senju Power Plant primary generator (which produces approx. 30,000 kW) was tested to determine whether it could resume operation, after gaining approval from the Shinanogawa River Office of the Hokuriku Regional Development Bureau, Ministry of Land, Infrastructure and Transport, for drawing in 62.5 m3 of river water per second. After passing the initial tests, the plant resumed partial power generation on February 1.
    In power generating operations, the regulating reservoir that was damaged during the earthquake is not currently used. Instead, only restored facilities that have been determined to be sound are used.
  • JR East is diligently working toward complete restoration, and we will report the prospects for a full-scale return to operation as it becomes clear.

Other Notes

  • The Shinanogawa Power Station shares facilities and water from snow gutters with the cities of Tokamachi and Ojiya, which draw water from the Miyanaka Intake Dam. Intake of water from snow gutters had already reached a rate of 3 m3 per second by December 21 last year.
  • The maximum intake capacity of the Shinanogawa Power Station is approx. 317 m3 per second.
  • The permitted output of the Shinanogawa Power Station as a whole is approx. 450,000 kW.