Backup issues put Swedish units out of action

Concerns over diesel backup generators have forced two of OKG’s three units at Oskarshamn off line as Sweden prepares for the coldest months of the year. Oskarshamn 1 is likely to remain off line until mid-January.

Oskarshamn 1 had only recently restarted after over a year out of service, following problems with vibrations in the turbine system and the detection of damage to reactor vessel internals during the plant’s regular maintenance outage.

Meanwhile, Oskarshamn 2 is being kept off line for work on its backup generators after Swedish regulators ordered an immediate shutdown of the unit. The Swedish Radiation Safety Authority issued its instruction on 6 December on the grounds that OKG had not been able to demonstrate that “equipment essential for ensuring safe operation” fully met requirements for operability and reliability.
[link to energyandnuclear.com]
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