EON SE shut down Sweden’s biggest nuclear power plant after a swarm of jellyfish made its way into a cooling water inlet at the reactor on the Baltic coast.
The 1,400 megawatt Oskarshamn-3 unit, located about 340 kilometers (211 miles) south of Stockholm, accounts for 5% of Sweden’s power supply, Anders Oesterberg, a spokesman for EON, said by e-mail on Monday.
This situation is caused by a huge amount of jellyfish, just one is definitely not enough to cause problems, Oesterberg said from Oskarshamn, Sweden. The last time this happened was in August 2005, when we had to shut down Oskarshamn-1 because of a jellyfish invasion.
Oskarshamn-3 was halted on 8 September for maintenance and was scheduled to resume output on 27 September, according to a company filing. EON, Germany’s biggest utility, owns 55% of the plant, which was commissioned in 1985. Fortum Oyj of Finland owns the rest.
More information on the plant stoppage is expected later on Monday, according to an EON filing with the Nord Pool Spot exchange in Oslo.
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