Oskarshamn Nuclear Power Plant

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Active reactors ( gross ):

The Oskarshamn nuclear power plant is one of five (three active ) nuclear power plants in Sweden.

The plant is located about 30 kilometers north of Oskarshamn directly at Kalmar on the Baltic coast and produced with the three reactors Oskarshamn 1, 2 and 3 for about 10 percent of the electricity in Sweden. All three blocks are boiling water reactors.

Block 1 has an installed capacity of 487 MW, Block 2 has 627 MW. Block 3, the latest reactor block, had an installed capacity of 1,194 MW and was expanded in 2008 to 1,450 MW. The Oskarshamn nuclear power plant, making it one of the most efficient power plants in the Nordic region.

Located on the premises of the plant also Clab, the central interim storage facility for spent fuel from all Swedish reactors.

Operator

Operator is the Oskarshamnsverkets force Grupp AB, OKG short, which belongs since 1993 to Sydkraft, which in turn is now called E.ON Sverige. E.ON Sverige owns 54.5 percent and the other partner Fortum 45.5 percent of OKG.

History

The power station Oskarshamn is on the peninsula Simpevarp at one point, which was used in the early history of mankind as a burial ground. This burial ground, consisting of several rows of stones and at least a pile of rocks with no significant findings, has been completely removed in the course of construction. In addition, a collection of bricks was removed, which had probably served as a navigation mark.

The Simpevarp peninsula was marked at the beginning of the suitability study for the construction of the power plant in the 1950s nor of Agriculture and Fisheries. 1955 nuclear power consortium Krångede and Sydkraft ( now E.ON Sverige, a subsidiary of E.ON ) was established as the largest shareholders, and four years later, in 1959, filed an application for the construction of a nuclear power plant at this location. In 1962, the land concerned have been bought to the inhabitants, who left the Peninsula in the sequence.

On 14 July 1965, the Oskarshamns force Grupp ( OKG ) was established and the construction of a reactor with 400 MW was added at ASEA - Atom (a subsidiary of ASEA ) in order. The following year, the government approved the location and construction began. Five years later, in 1971, the reactor Oskarshamn 1 went on line. The following year, the Oskarshamn nuclear power plant by the King Gustav VI was. Adolf inaugurated.

1974 was the reactor in 1967 applied for and approved in 1969 Oskarshamn 2 with 600 MV grid.

After the partial meltdown in the U.S. nuclear power plant Three Mile Iceland 2 in 1979, followed in Sweden in March 1980 a referendum on the future of nuclear energy, in which voters pleading for a gradual phasing out of nuclear energy. As a result, the Swedish Parliament decided in 1980 that no further nuclear power plants should be built. The projects then already under construction or planned Oskarshamn 3 with 1000 MV as well as the central interim storage facility for spent fuel CLAB all Swedish reactors were still completed and inaugurated both in 1985.

In the following years, all three reactors were modernized under different projects and increase their performance.

After it came in the Forsmark nuclear power plant to a serious incident on 25 July 2006, two similarly constructed blocks (block 1 and block 2) were switched off for the time being in Oskarshamn as a consequence. On 21 December 2006, the consortium AREVA NP, Siemens and Heitkamp was entrusted with the modernization and expansion of the second reactor block to 845 MW. Scheduled for completion was 2013. Late March 2014, the power extension has been moved.

On 21 May 2008, the presence of triacetone - Tetraperoxid ( TATP ) was displayed during a check on explosives -related chemicals at two craftsmen. It could however also be a rifle gunshot residue. The power plant site was sealed off then. The two craftsmen were engaged in service work on the switched-off block 2 to insulation. These are not employees of the power plant, but an artisan company. The men were then taken into custody on suspicion of sabotage. Police searched from the evening until the next day, the entire system of reactor 2 with sniffer dogs, with no further traces of explosives were found. The men have during their time in the nuclear power plant to move freely around the grounds and stopped also in security-related areas as well as in the vicinity of the reactor.

On 23 October 2011, a fire occurred in the turbine hall of Reactor 2 due to an oil leak, which was however quickly extinguished with portable fire extinguishers.

On 6 December 2012, the Nuclear Regulatory Commission Strålsäkerhetsmyndigheten (SSM ) announced that reactor 2 must be switched off immediately, as the operator had not complied with safety requirements: The installed diesel generators should not have to work reliably. A maintenance due in 2011 at one of the four generators had not been carried out until closure notice, said the SSM with.

On December 20, 2012, the nuclear power plant was provided by the Swedish Nuclear Regulatory Authority under " special supervision ", the last step before the withdrawal of the operating license. The reason for this was known that the operator would not have received a number of security problems under control. Thus, included the emergency generators that were installed after conversion of the reactor 1 in 2002 and serve to ensure the safe cooling of the reactor during a power failure, not have been ready until December 2012. The Nuclear Regulatory Commission, this was by his own admission have not noticed, since the reactor operators are responsible for the security and it carries only the supervision. Since it did not have the resources themselves to control everything, she must rely on reports of operators for this purpose.

In the night from 29 to 30 September 2013, the nuclear power plant Oskarshamn due to blockage of the cooling sea water lines had to be shut down non-scheduled by jellyfish. After eliminating damage the nuclear power plant went on 2 October the grid again.

Data of the reactor units

The Oskarshamn nuclear power plant has a total of three blocks: