Nuclear Baltic Map/Oskarshamn NPP

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The town Oskarshamn, which is located on the east coast of Sweden, close to Sweden's second largest island Öland, was the first place in Sweden, where big commercial nuclear power plants were built. The first two boiling water reactors (BWR), Oskarshamn 1 and 2 were built in 1972 and 1974 and are still in operation. The biggest swedish BWR reactor with 1.450 MW is as of 2014 Oskarshamn 3, which is operating since 1985 [7]. Alltogether the 3 Oskarshamn reactors produce some 10 % of Sweden's electricity generation. The operator OKG made a request for upgrading Oskarshamn 3 by 250 MW, which was approved by Swedish Nuclear Power Inspectorate (SKI) in 2005. However Oskarshamn 3 is operating with 1.450 MW only since late 2011, because of repeating turbine problems [8] . Nonfunctional emergency diesel aggregates at Oskarshamn 1 since 2002 and problems with emergency diesel aggregates at Oskarshamn 2 temporary led to enforced shutdown by the Swedish nuclear safety authority Strålsäkerhetsmyndigheten (SSM) in December 2012 [9]. OKG made another request for upgrading Oskarshamn 2 from 605 MW to 840 MW. These plans were supposed to implemented in 2015, but have been postponed already[10]. OKG asked for operation license for the upgraded reactors 1 and 2 for 60 years each, a lot more than the designed lifetime. OKG belongs to energy companies E.ON (54.5 %) and Fortum (45.5 %). OKG is one of the largest employers in Kalmar county.[11] . E.ON has expressed interest in replacing O1 by a new reactor to be located on the nearby island Ävrö, which is already owned by OKG.[12] All of Swedish high-level spent nuclear fuel is temporarily deposited at the Clab repository in Oskarshamn.


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