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Koeberg Unit 1 taken offline for repairs, routine maintenance and refueling outage

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Monday, 04 January 2021: Yesterday afternoon an increasing leak rate was observed on one of three steam generators in Unit 1. This was confirmed by other plant measurement readings. Although the leak rate was well within the safety limits, a conservative decision was made to take Koeberg Unit 1 offline for repairs. During this period the unit will also undergo its routine maintenance and refuelling, which was originally scheduled to start during February. The unit is expected to return to service during May 2021.
 
The steam generator is a tubular heat exchanger which mechanically dries the steam produced during the nuclear power generation process. Shutting down the plant takes several hours, and the process is still underway – once shut down, fuel will be unloaded from the reactor core to enable maintenance activities to be conducted, and the cause of the increased leak rate to be addressed.
There is no risk to plant, personnel, or the environment.
Unit 2 continues to safely operate and generate at full power.
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