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Almaraz Nuclear Power Plant
Nuclear power station at Almaraz in Spain From Wikipedia, the free encyclopedia
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Almaraz Nuclear Power Plant is a nuclear power station at Almaraz in Spain which uses the Tagus River, that runs into Portugal, for cooling.
It consists of two pressurized water reactors (PWRs) of 1011 and 1006 MWe.
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Arrocampo reservoir
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Cooling for the Almaraz nuclear power plant was the principal reason for the construction of the Arrocampo Reservoir in 1976.
The water is taken from the Tagus River and covers a U-shaped circuit of 25 km which allows the cooling of the heat generated by the two nuclear reactors of the plant. (See the illustration of the water circulation in Arrocampo)
The walls separating the hot and cold flows (pantallas de separación térmica in Spanish) (PST) are 11 km long and 8 m high.
The tops of these walls are used by great cormorants and great egrets as standing, resting and sleeping areas.
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History
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 | This section needs to be updated. (March 2024) |
In 1975 Luis E. Echávarri was made project manager of the plant. In 1985 he became technical director of the Spanish Nuclear Safety Council (CSN), and in 1987 he was named Commissioner of the CSN.
The first reactor began operating in 1981 and the second in 1983. It occupies an area of 1683 hectares.
As of 2017 Spain had approved a nuclear waste warehouse at Almaraz without carrying out any consultations or impact studies. Portugal has taken the matter to the EU, protests planned on 12 January at Spanish consulates were organised by Movimiento Ibérico Antinuclear,[1] which coincided with a meeting between Portuguese and Spanish delegates in Madrid, which ended in deadlock and Portugal to complain to the EU that Spain ignored the potential cross-border impact with no studies being carried out, which is against European Union rules.[2][3][4][5]
Spanish secretary of State for the EU Jorge Toledo Albiñana has said work will start regardless of Portugal's complaints, and uranium fuel assemblies that will remain radioactive for the next 300 years will be stored on site.[6]
In May 2017 the Portuguese Parliament approved the Ecologist Party "The Greens" motion to request the closure of Spain's Almaraz nuclear plant during the next Iberian summit. Stating that after 2020 the plant should be shut down, the Greens asked the government to take a "resolute position, for the facility, located 100 kilometres from the Portuguese border. Environmentalists have warned that the plan to build a nuclear waste warehouse site next to the power plant almost certainly indicates that Spain plans to extend the life of the Almaraz power plant beyond the year 2020.[7]
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Safety record
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On the 28 January 2016, the Spanish Nuclear Safety Council inspectors found serious failings in the water pump engines at the plant, which have potential operational issues of the cooling system and could pose a serious risk to local people and the environment in Spain and in neighboring Portugal. These two incidents were "classified at [INES] level 1, both relating to inoperabilities on one train of the components heat exchangers".[8][9] Greenpeace has labelled the plant as an "extreme case" in its study on the application of minimum safety standards introduced in Europe after the Fukushima accident.[10] Miguel Arias Cañete responded that the CSN "carried out an assessment and reached the conclusion that the Almaraz power plant is operated safely."[11]
On 21 September 2016, defective parts were used on unit 1's second and third steam generators and on unit 2's third steam generator, as well as the rim of the reactor lid in unit 2. It had already been reported that the water pump engines had been stopped twice, the plant's cooling system was reported as not 100% reliable.[12]
On 10 April 2017, the Spanish Nuclear Safety Council issued a statement stating there was an unscheduled stoppage of the main number two pump at 9:57 am Spanish time (8:57 am Lisbon time).[13]
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References
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