The Kansai Electric Power Company, Incorporated, 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 Mihama Nuclear Power Plant is operated by The Kansai Electric Power Company, Inc. and is in the town of Mihama, Fukui Prefecture, about 320 km west of Tokyo. It is on a site that is 520,000 m2 of which 60% is green space. Mihama - 1 was commissioned in 1970.
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 Daiichi Nuclear Power Plant is a disabled nuclear power plant located on a 3.5-square-kilometre (860-acre) site in the towns of Ōkuma and Futaba in Fukushima Prefecture, Japan. The plant suffered major damage from the magnitude 9.1 earthquake and tsunami that hit Japan on March 11, 2011. The chain of events caused radiation leaks and permanently damaged several of its reactors, making them impossible to restart. The working reactors were not restarted after the events.
The Fukushima Daini Nuclear Power Plant Genshiryoku Hatsudensho, Fukushima II NPP, 2F) 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 Shika Nuclear Power Plant is a nuclear power plant located in the town of Shika, Ishikawa, Japan. It is owned and operated by the Hokuriku Electric Power Company. It consists of two units with a total capacity of 1.746 GW on a site that is 1.6 km2. Both units were put in a temporary shutdown in the wake of the 2011 Fukushima Daiichi nuclear disaster and received safety upgrades to comply with stricter regulatory requirements. As of 2023, Hokuriku aims to restart the plant in 2026.
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 Takahama Nuclear Power Plant is a nuclear power plant located in the town of Takahama, Ōi District, Fukui Prefecture. It is owned and operated by the Kansai Electric Power Company and is on a site with an area of about 1 km2. The four pressurized water reactors give the plant a total gross electric capacity of 3,392 MW and average yearly production of 22,638 GWh.
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.
Tohoku Electric Power Co., Inc. is an electric utility, servicing 7.6 million individual and corporate customers in six prefectures in Tōhoku region plus Niigata Prefecture. It provides electricity at 100 V, 50 Hz, though some area use 60 Hz.
The Hokkaido Electric Power Company, or Hokuden (ほくでん) for short, is the monopoly electric company of Hokkaidō, Japan. It is also known as Dōden and HEPCO. The company is traded on the Tokyo Stock Exchange, Osaka Securities Exchange, and Sapporo Securities Exchange.
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 Omarugawa Pumped Storage Power Station is a large pumped-storage hydroelectric power station in Kijo in the Koyu District of Miyazaki Prefecture, Japan. With a total installed capacity of 1,200 megawatts (1,600,000 hp), it is one of the largest pumped-storage power stations in Japan.
The Okuyahagi Pumped Storage Power Station is a group of large pumped-storage hydroelectric power plants and smaller conventional plants located in Toyota, Aichi Prefecture, and Ena, Gifu Prefecture, Japan. With a combined installed capacity of 1,160 megawatts (1,560,000 hp), it is among the largest pumped-storage power stations in Japan.
The Imaichi Pumped Storage Power Station is a large pumped-storage hydroelectric power station in Tochigi Prefecture, Japan. With a total installed capacity of 1,050 megawatts (1,410,000 hp), it is one of the largest pumped-storage power stations in Japan. The facility is run by the Tokyo Electric Power Company (TEPCO). The power plant started operation in July 1988 with a capacity of 350 MW. The other two units entered operation in December 1991. The plant is one of the many large scale pure pumped-storage plants built in Japan since the 1970s to compensate for the increased penetration of base-load nuclear power and peak load from cooling and air-conditioning.
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.
Radioactive water from the Fukushima Daiichi Nuclear Power Plant in Japan began being discharged into the Pacific Ocean on 11 March 2011, following the Fukushima Daiichi nuclear disaster triggered by the Tōhoku earthquake and tsunami. Three of the plant's reactors experienced meltdowns, leaving behind melted fuel debris. Water was introduced to prevent the meltdowns from progressing further. When cooling water, groundwater, and rain came into contact with the melted fuel debris, they became contaminated with radioactive nuclides, such as iodine-131, caesium-134, Caesium-137, and strontium-90.
