Santa María de Garoña nuclear power plant

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Santa María de Garoña nuclear power plant
location
Coordinates	42 ° 46 '30 "  N , 3 ° 12' 30"  W Coordinates: 42 ° 46 '30 "  N , 3 ° 12' 30"  W.
Country:	Spain
Data
Owner:	Nuclenor, SA
Operator:	Nuclenor, SA
Project start:	1965
Commercial operation:	May 11, 1971
Shutdown:	December 16, 2012
Decommissioned reactors (gross):	1 (466 MW)
Energy fed in in 2007:	3,322 GWh
Energy fed in since commissioning:	108,775 GWh
Was standing:	March 15, 2008
The data source of the respective entries can be found in the documentation .

The Santa María de Garoña nuclear power plant , which has been decommissioned since December 2012, is located on the upper reaches of the Ebro in the northern Spanish province of Burgos in the immediate vicinity of the Basque province of Álava .

construction

The decommissioned power plant is identical to the reactor I in the Fukushima nuclear power plant, which was damaged due to an earthquake . An almost completely passive heat dissipation system, a so-called emergency capacitor, was unusual for European systems. If all of the electrical pumps for dissipating the decay heat fail after the shutdown, the staff in the reactor building can open two valves by hand. The reactor water then flows through a heat exchanger that is located in a large, water-filled container. This water takes over the heat of the reactor water and evaporates into the environment, while the reactor water flows back cooled into the reactor.

history

The boiling water reactor of General Electric with 466  MW (net) was born on November 5, 1970 for the first time critical . The Zapatero II government decided on July 2, 2009 to extend the operating license of the nuclear power plant for only two years until 2013. The supervisory authority Consejo de Seguridad Nuclear (CSN) had recommended the government on June 6, 2009 to extend the operating license until 2019; the government decided not to follow this recommendation. Instead, the nuclear power plant should go offline on July 5, 2013.

After the change of government (=> Cabinet Rajoy I ), Prime Minister Rajoy announced in February 2012 that the term would be extended by five years. The operator let the deadline for applying for the extension of the run time pass unused, so that July 2013 remained the deadline for the shutdown.

On December 16, 2012, the nuclear power plant was finally shut down. According to the operator, continued operation was no longer economical due to a planned new energy tax from January 2013.

On May 16, 2013, Nuclenor asked the Spanish government for a new deadline to apply for the license for continued operation, but on June 19, 2013 the Spanish Energy Minister José Manuel Soria made it clear to the Congress that this was not possible and the power plant will be finally shut down with effect from July 6, 2013.

After the operator applied for the nuclear power plant to be restarted and the nuclear supervisory authority CSN had spoken out in favor of restarting it with certain conditions in February 2017, the Ministry of Energy decided on August 1, 2017 that the reactor must not be restarted and granted the decommissioning license.

Accident mitigation measures

In the event of an unrecoverable failure of the mains and emergency power as well as additional redundancies - the above-mentioned emergency capacitor and a self-steam-driven pump - after a shutdown, the factory had (before its shutdown and dismantling) in the now threatened meltdown , based on the US model , a so-called "wetwell vent". The following process takes place: After the cooling water has been blown off relatively slowly from the reactor vessel by automatically cycling down with the pressure relief valves, the resulting increase in vapor pressure in the relatively small condensation chamber ("torus") is still fairly uncontaminated for the first time released into the environment (" vented "). Then the pressure relief valves are opened manually from the control room and the core is covered quickly . This fast procedure has the advantage that, relatively speaking, less hydrogen is produced due to the rapid removal of water. It is hoped that this will prevent hydrogen combustion in the torus and a possible containment leak as a result. Should this nevertheless occur, it is assumed that a filter effect of radioactive particles occurs in the water part of the torus, which at least prevents radiation doses from occurring in the environment that lead to quickly fatal damage to health. A fairly high number of people dying of cancer in the long term is nevertheless to be expected. The number depends, for example, on the population density in the downdraft direction of the contaminated cloud and the protection options there. During the nuclear disaster in Fukushima , this reactor vessel depressurization and subsequent containment venting only functioned poorly, mainly because the apparatus for it was damaged by earthquakes and tsunami.

Poster of a protest against the power plant

Data of the reactor block

The Santa María de Garoña nuclear power plant has one block :

Reactor block	Reactor type	net power	gross power	start of building	Network synchronization	Commercialization of essential operation	switching off processing
Santa María de Garoña	Boiling water reactor	446 MW	466 MW	05/02/1966	03/02/1971	05/11/1971	December 16, 2012

See also

• List of power plants in Spain
• List of nuclear facilities in Spain
• List of nuclear power plants

Web links

• Nuclear Power Plant Official Website (Spanish)

Footnotes

1. ↑ Spanish Fukushima Sisters. Retrieved March 14, 2011 . 
2. ↑ Stress tests performed on European nuclear power plants, page 18. (No longer available online.) Archived from the original on September 24, 2015 ; Retrieved April 8, 2015 . Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.  
3. ↑ Duration of the oldest nuclear power plant in Spain extended. ORF.at, February 18, 2012, accessed on February 18, 2012 . 
4. ↑ Garona has to go offline in July 2013. Nuclear Forum Switzerland, September 14, 2012, accessed on December 17, 2012 . 
5. ^ Oldest Spanish nuclear reactor shut down. Deutschlandfunk, December 17, 2012, accessed on December 17, 2012 . 
6. ↑ Spain's oldest nuclear plant shuts down. Reuters, December 16, 2012, accessed December 17, 2012 . 
7. ↑ Soria confirma el cierre de Garoña definitivo el próximo 6 de julio. (No longer available online.) Arn digital, June 20, 2013, archived from the original on November 22, 2014 ; Retrieved June 25, 2013 . Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.  
8. ^ Spain: Renewal of the Garona operating license refused. nuklearforum.ch, August 4, 2017, accessed on August 6, 2017 . 
9. ^ Nuclear Regulatory Commission : Frequencies of various Containment Failure Events , 2004
10. ↑ Power Reactor Information System of the IAEA : "Spain, Kingdom of Power Reactors" (English)