Unit 1 at Koeberg Nuclear Power Station (930MW) has been successfully re-synchronised to the grid

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  • Eskom has announced that Unit 1 at Koeberg Nuclear Power Station (930MW) has been successfully re-synchronised to the grid after almost a year out of service will its three steam generators were replaced.
  • This is the longest outage in the history of the station which has been plagued by costly delays and safety concerns. Read more 

For the duration of the Unit1 outage, Unit 2 has been safely generating electricity to the grid and will continue to do so until the start of its next outage which will include the replacement of its original three steam generators. The outage on Unit 2 will start once Unit 1 is stable and all the required commissioning tests are complete.

Related news: Koeberg nuclear power plant life extension costs vastly underestimated 

Eskom said that although Unit 2 outage will be similar in terms of the scope, the lessons learnt from Unit 1 outage will enable the duration to be reduced, however as was the case during the Unit 1 outage, Nuclear Safety will not be compromised.

The replacement of steam generators is a huge milestone in the life of Koeberg as it was identified by Eskom as a prerequisite for the extension of the operating licence for Koeberg beyond its original design life of 40 years. Eskom has already submitted a licence application to the National Nuclear Regulator (NNR) for Koeberg’s operating life extension by additional 20 years, which is being assessed by the NNR.

“We are pleased by the synchronisation of Koeberg’s Unit 1 to the grid today. This milestone is as a result of the hard work and determination of the Eskom employees, suppliers, and contractors who have had to endure a long and challenging outage in the Koeberg Power Station’s history. I commend everyone involved on the project for ensuring that the unt was returned to service safely,” said Eskom’s Group Executive for Generation, Bheki Nxumalo.”

Koeberg remains South Africa’s only nuclear power station with a total capacity of 1860 MW, approximately 5 % of electricity generated by Eskom. The two reactors (Unit 1 and Unit 2) at the Koeberg Nuclear Power Station, are the largest generating units on the African continent and have been well maintained and safely operated for close to 40 years.

Author: Bryan Groenendaal


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