Dukovany nuclear power plant

location

Coordinates

49 ° 5 '6 " N , 16 ° 8' 56" E Coordinates: 49 ° 5 '6 " N , 16 ° 8' 56" E

Country:

Czech Republic

Data

Owner:

ČEZ, as

Operator:

ČEZ, as

Project start:

1970

Active reactors (gross):

4 (1824 MW)

Energy fed in in 2010:

13,288.4 GWh

Energy fed in since commissioning:

301,616.77 GWh

Was standing:

May 17, 2011

The data source of the respective entries can be found in the documentation .

The Czech nuclear power plant Dukovany (Czech Jaderná elektrárna Dukovany , also JEDU for short, rarely EDU) is located on the territory of the municipalities of Dukovany and Rouchovany in South Moravia . It is located about 35 kilometers southwest of Brno and 100 kilometers north of Vienna .

It was commissioned between 1985 and 1987 and consists of four reactor blocks with a total output of 1792 MW . The company ČEZ is the owner and operator of the nuclear power plant .

history

The nuclear power plant

From 1976 the villages of Heřmanice , Lipňany and Skryje were evacuated. Construction of the first two units in a twin arrangement began on January 1, 1979, and construction of units 3 and 4 began on March 1, 1979. On May 3, 1985, the first reactor unit was put into operation. Unit 2 went into operation on March 21, 1986. Unit 3 went into operation on December 20 of the same year. In the 4th block, the first synchronization with the power grid was carried out on July 19, 1987 after more than eight years of construction.

The nuclear power plant has a cooling water requirement of 83 cubic meters per hour, which it draws from the Dalešice and Mohelno reservoirs of the Jihlava .

According to the current status, the shutdown of the first reactor block is Template: future / in 5 yearsplanned for 2025 , as the planned duration of 40 years will then be reached.

In February 2012, the Czech Industry and Trade Minister Martin Kuba announced the prospect of building another reactor in Dukovany. In April 2020, after several years of preparatory work, a contract was signed with ČEZ for the development of a single 1200 MWe unit; The aim is to realize it in 2029 and to complete it in 2036. The cost of construction is estimated at 10 to 12 billion euros. It is currently assumed that the energy company CEZ will take over the financing of the new reactors.

safety

The first block of the nuclear power plant

The four reactors are Russian-type pressurized water reactors ( WWER ) of the 440 series. Version 213 of the WWER-440 is the second generation of nuclear reactors, developed by the Soviet Union between 1970 and 1980.

The power plant has no containment and is of the same Soviet type as the Bohunice V2 nuclear power plant in Slovakia or units 5 to 8 of the Greifswald nuclear power plant, which was closed in 1990 .

The lack of containment offers less protection for the system against external influences - such as B. Destruction by a plane crash - as well as against escaping radioactivity in serious accidents in the reactor room. Furthermore, the installation of the blocks in two twin systems with a common central room for two reactors each and the amalgamation of numerous safety and service facilities is also viewed as a risk, since the other reactor cannot be fully shielded in the event of an accident.

irregularities

In early February 2016, both the operator and the Czech nuclear supervisory authority filed a criminal complaint after the latter discovered that all X-ray images of the welds had been systematically manipulated. According to the Czech nuclear regulatory authority, the seams in the primary circuit are not affected by this affair. Block 2 is currently (as of February 2016) still unscheduled deactivated. On November 25, 2018, reactor block 1 was shut down after a leaky pipe was suspected in the area of the steam generator.

Mention in the media

Dukovany is also the sideline of the Austrian film Der Erste Tag, produced in 2008 .

Data of the reactor blocks

The Dukovany nuclear power plant has four blocks :

Reactor block	Reactor type	net power	gross power	start of building	Network synchronization	Commercialization of essential operation	switching off processing
Dukovany-1	WWER-440/213	471 MW	505 MW	01/01/1979	02/24/1985	05/03/1985	(Planned for 2025)Template: future / in 5 years
Dukovany-2	WWER-440/213	471 MW	505 MW	01/01/1979	01/30/1986	03/21/1986	(Planned for 2026)Template: future / in 5 years
Dukovany-3	WWER-440/213	471 MW	505 MW	03/01/1979	11/14/1986	December 20, 1986	(Planned for 2027)Template: future / in 5 years
Dukovany-4	WWER-440/213	471 MW	505 MW	03/01/1979	06/11/1987	07/19/1987	(Planned for 2028)Template: future / in 5 years

Integration into the power grid

The electricity generated in the blocks is sent via high-voltage lines to the Slavětice collective substation, where the load distributor is located. A 380 kV line also leads from the Slavětice substation to Austria to the Dürnrohr substation .