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Higashidori Nuclear Power Plant
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The Higashidori Nuclear Power Plant is a nuclear power plant located in the town of HigashidÅri in eastern Aomori Prefecture, on the Shimokita Peninsula, facing the Pacific Ocean. It is unique in Japan in that at this four-unit site, two units are run by one company, the TÅhoku Electric Power Company and two units are run by the Tokyo Electric Power Company. The reactors are all of Toshiba design.
Construction of Tohoku Electric's Higashidori Unit-1 began in December 1998 and was completed in December 2005. The design was based on Tohoku Electric's Onagawa Nuclear Power Plant Unit-3, with improvements to the reactor vessel to allow for greater ease in inspection and maintenance. A separate building, apart from the containment structure, is dedicated specifically for the heat exchanger system based on seawater to provide primary coolant for the reactor.
Reactors Run by Tohoku Electric Company
| Unit | Type | First Criticality | Electric Power |
|---|---|---|---|
| Higashidori - 1 | BWR | December 8, 2005 | 1100 MW |
| Higashidori - 2 (planned) | ABWR | Construction will start 2010 | 1385 MW |
Reactors run by Tokyo Electric Company
Tepco began construction of its Higashidori-1 unit on January 25, 2011, after approval by METI.
| Unit | Type | First Criticality | Electric Power |
|---|---|---|---|
| Higashidori - 1 (planned) | ABWR | scheduled for completion in March 2017 | 1385 MW |
| Higashidori - 2 (planned) | ABWR | scheduled for completion in 2019 | 1385 MW |
| HigashidÅri Nuclear Power Plant | |
|---|---|
| Country | Japan |
| Construction began | 2000 |
| Commission date | December 8, 2005 |
| Operator(s) | TÅhoku Electric Power Company Tokyo Electric Power Company |
| Reactor information | |
| Reactors operational | 1 x 1100 MW |
| Reactors planned | 3 x 1385 MW |
| Power generation information | |
| Annual generation | 9,269 GW·h |
| Net generation | 12,197 GW·h |
