The following is a list of Japanese nuclear power plants. After the Fukushima Daiichi nuclear disaster, all 17 major plants were shut down. As of 2022, only 6 out of 17 major nuclear power plants operate in the country, operated by the Kyushu Electric Power (Kyuden), Shikoku Electric Power Company (Yonden) and Kansai Electric Power Company (Kanden).
identifier |
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Plant pending restart approval |
Pending restart with government approval |
Plant operating with limited capacity (some reactors pending restart approval) |
Plant operating at full operational capacity |
Plant shut down indefinitely |
Parts of plant shut down for maintenance or refuelling |
The Kansai Electric Power Co., Inc., also known as Kanden (関電), is an electric utility with its operational area of Kansai region, Japan.
Prior to the 2011 Tōhoku earthquake and tsunami, Japan had generated 30% of its electrical power from nuclear reactors and planned to increase that share to 40%. Nuclear power energy was a national strategic priority in Japan. As of March 2020, of the 54 nuclear reactors in Japan, there were 42 operable reactors but only 9 reactors in 5 power plants were actually operating. A total of 24 reactors are scheduled for decommissioning or are in the process of being decommissioned. Others are in the process of being reactivated, or are undergoing modifications aimed to improve resiliency against natural disasters; Japan's 2030 energy goals posit that at least 33 will be reactivated by a later date.
The Higashidōri Nuclear Power Plant is located in the village of Higashidōri in northeastern Aomori Prefecture, on the Shimokita Peninsula, facing the Pacific Ocean. The plant has not generated electricity since Japan's 2011 nationwide nuclear shutdown in the aftermath of the Fukushima Daiichi nuclear disaster.
The Fukushima Daini Nuclear Power Plant is a nuclear power plant located on a 150 ha (370-acre) site in the town of Naraha and Tomioka in the Futaba District of Fukushima Prefecture, Japan. The Tokyo Electric Power Company (TEPCO) runs the plant.
The Kashiwazaki-Kariwa Nuclear Power Plant is a large, modern nuclear power plant on a 4.2-square-kilometer (1,000-acre) site. The campus spans the towns of Kashiwazaki and Kariwa in Niigata Prefecture, Japan, on the coast of the Sea of Japan, where it gets cooling water. The plant is owned and operated by Tokyo Electric Power Company (TEPCO), and it is the largest nuclear generating station in the world by net electrical power rating.
The Tsuruga Nuclear Power Plant is located in the city of Tsuruga, Fukui Prefecture, Japan. It is operated by the Japan Atomic Power Company (JAPC). The total site area is 5.12 square kilometres (1.98 sq mi) with 94% of it being green area that the company is working to preserve. The Tsuruga site is a dual site with the decommissioned prototype Fugen Nuclear Power Plant.
The Shimane Nuclear Power Plant is a nuclear power plant located in the town of Kashima-chou in the city of Matsue in the Shimane Prefecture. It is owned and operated by the Chūgoku Electric Power Company.
The Sendai Nuclear Power Plant is a nuclear power plant located in the city of Satsumasendai in Kagoshima Prefecture. The two 846 MW net reactors are owned and operated by the Kyūshū Electric Power Company. The plant, like all other nuclear power plants in Japan, did not generate electricity after the nationwide shutdown in the wake of the Fukushima Daiichi nuclear disaster in 2011, but was restarted on August 11, 2015, and began providing power to nearby towns again. Sendai is the first of Japan's nuclear power plants to be restarted.
The Japan Atomic Energy Agency is an Independent Administrative Institution formed on October 1, 2005 by a merger of two previous semi-governmental organizations. While it inherited the activities of both PNC and JAERI, it also inherited the nickname of JAERI, "Genken" 原研, an abbreviated word for "nuclear research".
Japan's Nuclear Safety Commission was a commission established within the Cabinet of Japan as an independent agency to play the main role in nuclear safety administration. Commissioners are appointed by the Prime Minister of Japan on Diet approval. The commission has stronger authority than any other ordinary advisory committees, in that the commission can make recommendations to relevant agencies in the name of the prime minister if it is necessary.
Dai-ichi (第一) is a compound modifier phrase of Japanese origin, meaning number one, or first. In kanji, "dai" ("number") is 第 and "ichi" ("one") is 一. "Dai" is also defined "ordinal number marker." It is this feature that makes the phrase a modifier, or an adjective, describing a noun, as first. Number one functions in the same way.
Fukushima 50 is a pseudonym given by English-language media to a group of employees at the Fukushima Daiichi Nuclear Power Plant. Following the Tōhoku earthquake and tsunami on 11 March 2011, a related series of nuclear accidents resulted in melting of the cores of three reactors. These 50 employees remained on-site after 750 other workers were evacuated.
Investigations into the Fukushima Daiichi Nuclear Disaster began on 11 March 2011 when a series of equipment failures, core melt and down, and releases of radioactive materials occurred at the Fukushima Daiichi Nuclear Power Station from the 2011 off the Pacific coast of Tohoku Earthquake and tsunami on the same day.
The Okawachi Pumped Storage Power Station is a large pumped-storage hydroelectric power station in Kamikawa Town in the Kanzaki District of Hyōgo Prefecture, Japan. With a total installed capacity of 1,280 megawatts (1,720,000 hp), it is one of the largest pumped-storage power stations in Japan. The facility is run by the Kansai Electric Power Company (KEPCO). The power plant started operation in October 1992 and all four units were commissioned by June 1995.
The Shimogo Pumped Storage Power Station is a large pumped-storage hydroelectric power plant in Shimogō, Minamiaizu, Fukushima Prefecture, Japan. With an installed capacity of 1,000 megawatts (1,300,000 hp), the system is one of the largest pumped-storage power stations in Japan.
Ichi-F: A Worker's Graphic Memoir of the Fukushima Nuclear Power Plant is a graphic memoir by Kazuto Tatsuta about his time as a worker on the ongoing cleanup following the 2011 Fukushima Daiichi nuclear disaster. The manga, which Tatsuta wrote under a pseudonym for fear of being barred from the plant site, was originally published as a one-shot, winning Kodansha's MANGA OPEN contest. It was later extended into a full series, which was serialized in Morning from 2013 to 2015.
Atsumi Thermal Power Station is an oil-fired thermal power station operated by JERA in the city of Tahara, Aichi, Japan. The facility is located on reclaimed land at the tip of the Atsumi Peninsula at the entrance to Mikawa Bay.
NMKV Co., Ltd. is a joint venture company between Nissan Motor Co., Ltd. and Mitsubishi Motors in the Japanese market to design, develop, and manufacture kei cars under Nissan and Mitsubishi brands. The company currently produces Mitsubishi eK, Nissan Dayz, Mitsubishi eK Space and Nissan Roox for the domestic market. NMKV stands for Nissan Mitsubishi Kei Vehicle. Despite that, the abbreviation was never announced officially by the company.
On March 20, 2021 at 18:09 JST. The magnitude 6.9 or 7.0 earthquake struck offshore east of Tōhoku, Japan at a depth of 54.0 kilometers (33.6 mi) to 60 kilometers (37 mi). It had a maximum JMA intensity of Shindo 5+ while on the Mercalli intensity scale, it earned a rating of VII. Power outages and some slight damage in Miyagi was reported.
Radioactive waste water has been discharged into the Pacific Ocean since the Fukushima Daiichi nuclear disaster, triggered by the 2011 Tōhoku earthquake and tsunami on 11 March 2011 in Japan. Most of the radioactive materials came from immediate leaks into the atmosphere, 80% of which eventually deposited over the Pacific. Leakage to groundwater has persisted since the disaster and was only first admitted by the nuclear plant in 2013. Water treatment began that year as the "Advanced Liquid Processing System" became operable, which is capable of removing most radionuclides except notably tritium. In 2021, the Japanese cabinet approved the dumping of radioactive water into the Pacific over a course of 30 years.