More bad news for TEPCO. Just out from NHK: Two of three power systems out at TEPCO Onagawa plant. Hopefully this means the plant still has power. More as we see it.
The Onagawa Nuclear Power Plant is a nuclear power plant located on a 1,730,000 m2 (432 acres) site in Onagawa in the Oshika District and Ishinomaki city, Miyagi Prefecture, Japan. It is managed by the Tohoku Electric Power Company. It was the most quickly constructed nuclear power plant in the world.
The plant conforms fully to ISO 14001,
a set of international environmental management standards. The plant's
waste heat water leaves 7 degrees Celsius higher than it came in and is
released 10 meters under the surface of the water, in order to reduce
adverse effects on the environment.
Since November 11, 2006 this unit has been shut down due to the result of a test.
- May 2006 it was confirmed that a pipe was leaking due to debris damage.
- June 7, 2006 Difficulties with pressure control prompted further inspections.
- July 7, 2006 METI and the Nuclear and Industrial Safety Agency determined that the plant's performance was not satisfactory.
- July 7, 2006 Due to pipe integrity concerns the reactor was shut down.
- November 25, 2006 Following repairs the reactor was restarted.
- March 11, 2011 2011 T?hoku earthquake damaged the turbines after a fire broke out and was shut down.