- Ōi Nuclear Power Plant
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Ōi Nuclear Power Plant 
Units 3 and 4Location of Ōi Nuclear Power Plant
Country Japan Location Ōi, Fukui Prefecture Coordinates 35°32′26.25″N 135°39′7.32″E / 35.540625°N 135.6520333°ECoordinates: 35°32′26.25″N 135°39′7.32″E / 35.540625°N 135.6520333°E Construction began October 26, 1972 Commission date March 27, 1979 Reactor information Reactors operational 2 x 1,175 MW
2 x 1,180 MWReactor type(s) PWR Reactor supplier(s) Westinghouse
MHITurbine manufacturer(s) MHI
MelcoPower generation information Annual generation 32,808 GW·h Net generation 618,710 GW·h As of July 17, 2011 The Ōi Nuclear Power Plant (大飯発電所 Ōi hatsudensho, Ōi NPP) is a nuclear power plant located in the town of Ōi, Fukui Prefecture, managed by the Kansai Electric Power Company. The site is 1.88 square kilometres (460 acres).[1]
Contents
Reactors on site
Aerial view of the 1 and 2 units during construction
Unit Type Commercial Operation Electric Power Ōi - 1 PWR March 27, 1979 1,175 MW Ōi - 2 PWR December 5, 1979 1,175 MW Ōi - 3 PWR December 18, 1991 1,180 MW Ōi - 4 PWR February 2, 1993 1,180 MW Events
- On December 22, 2005 8:50am there was trouble with a power line due to strong winds and heavy snow, the reactor was shut down as a result.
- On July 15, 2011, Kansai Electric announced that two more nuclear power reactors in Fukui Prefecture would be shut down for regular inspections. The result of this decision was that 6 reactors were shut down, over half the utility's 11 reactors. The No. 4 reactor of the plant in Takahama Town will be brought to a halt for regular inspections on July 21st, and the No. 4 reactor of the plant in Oh Town, on July 22nd. Regular inspections are nearly complete at two other reactors. However the plan of the Japanese government to introduce safety stress tests for the nation's nuclear plants leaves it unclear when they could be brought back on line.[2]
- On July 15, 2011, the pressure in a tank with boric-acid dropped unexpectedly. This tank injects water into the reactor in the event of an emergency. This made it impossible to inject water in a proper way into the No. 1 reactor. The reactor would be manually shut down around 9 PM on July 16 to look into the cause of the problem, although pressure returned to normal in about one hour. It was said that the trouble did not cause any leak of radioactive substances to the outside.[3]
External links
References
- ^ Kepco (Japanese). Oi Power Plant Datasheet.
- ^ Jaif (15 July 2011) Kansai Power to halt more than half its reactors
- ^ NHK-world (16 July 2011) Kansai Electric to shut down reactor
Nuclear power in Japan Active LWR plants Fukushima Daiichi · Fukushima Daini · Genkai · Hamaoka · Higashidōri · Ikata · Kashiwazaki-Kariwa · Mihama · Ōi · Onagawa · Sendai · Shika · Shimane · Takahama · Tokai · Tomari · TsurugaOther plants Kaminoseki · Maki · Monju · Namie-Odaka · Ōma · Fugen (ATR) (inactive) · Jōyō (FBR) · Rokkasho (reprocessing)Fukushima Daiichi nuclear disaster Cleanup · Timeline · Radiation effects · Japanese reaction · International reaction · Reactor units 4, 5 and 6Companies Chugoku Electric Power Company · Japan Nuclear Fuel Limited · Mitsubishi FBR Systems · Tokyo Electric Power CompanyOrganisations Atomic Energy Commission · Japan Atomic Energy Agency · Japan Electric Association · Nuclear Safety Commission · Nuclear and Industrial Safety AgencyAnti-nuclear movement Anti-nuclear protests · Citizen's Nuclear Information Center · Tetsunari Iida · Haruki Murakami · Kenzaburo Oe · Ryuichi SakamotoMiscellaneous 2011 Japanese nuclear accidents · Iwaishima · Japanese nuclear incidents · Radiation Monitoring · Genpatsu-shinsaiCategories:- 1970s establishments in Japan
- Fukui Prefecture
- Nuclear power stations in Japan
- Nuclear power stations using pressurized water reactors
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