TÅkai Nuclear Power Plant
F1
Active reactors ( gross ):
Decommissioned Reactors ( gross ):
The nuclear power plant Tōkai (Japanese东海 原子 力 発 电 所, Tōkai genshi - ryoku hatsuden -sho ) is a nuclear power plant in Japan. It is approximately 120 kilometers northeast of Tokyo located in the area of the village in the district of Naka Tōkai in Ibaraki Prefecture. Owned by the Japan Atomic Power Company. On the site was also the Japan Power Demonstration Reactor, which went into operation in 1963 and the first used for commercial power generation nuclear reactor in Asia was. In the vicinity is the reprocessing plant of Tōkai.
History
The power plant was built in the years 1961-1965 in order to meet the increasing energy demand of the booming Japanese economy. In the first block is a Magnox reactor. This graphite-moderated reactor type requires only natural uranium and is cooled with carbon dioxide.
The boiling water was deemed not yet mature for. A necessary change in the reactor design was necessary for Japan earthquake resistance. This initially proved a problem because the British wanted to keep the technology secret.
Japan -house research and development ( at this time also in close cooperation with the German Federal Republic) and then decided to run the second block in Tōkai as a boiling water reactor.
Reactor Tōkai -1
The reactor Tōkai - 1 remained the only gas-cooled reactor in Japan. He was shut down on 31 March 1998. For the degradation of 190 million U.S. dollars were estimated. The 16,000 uranium blocks of the core should subside next 10 years. Then, the degradation began divided into three phases. In the first phase from 2006 to 2010 the technical equipment was removed. The schedule for Phase 2 is the period from 2010 to 2016 and for Phase 3, the year 2016 to 2017.
Reactor Tōkai -2
On 11 March 2011, the plant was shut down due to the heavy Tōhoku earthquake. On the afternoon of March 13. 2011 is officially the first alert was issued because in reactor 2 is one of two pumps of the cooling system, the work has stopped. Furthermore, two of three diesel generators had failed. An external power supply could be restored only on 13 March 2011.
May 21, 2011 2 reactor was switched off ' for maintenance '. Since the Fukushima nuclear disaster - there were several meltdowns - save the Japanese massive power to precaution - one fears quakes or aftershocks - to switch off as many nuclear reactors.
Data of the reactor units
The nuclear power plant Tōkai has two blocks: