IAEA Completes Safety Review for Long-Term Operation of SA’s Koeberg Nuclear Power Plant

Koeberg Units 1 and 2, which began operations in the mid-1980s, play a vital role in supplying approximately 5% of South Africa’s electricity and reducing reliance on coal.

An International Atomic Energy Agency (IAEA) expert team has concluded a review of the long-term operational safety of South Africa's Koeberg Nuclear Power Plant (NPP), the country’s only nuclear facility. The review, part of the Safety Aspects of Long Term Operation (SALTO) follow-up mission, was requested by Eskom, Koeberg's operator.

Koeberg Units 1 and 2, which began operations in the mid-1980s, play a vital role in supplying approximately 5% of South Africa’s electricity and reducing reliance on coal. Eskom has extended Unit 1's operating license until 2044, with plans to extend Unit 2’s operation until 2045.

The SALTO mission, held from 3 to 6 September 2024, assessed the plant's progress in implementing recommendations from previous IAEA reviews conducted in 2022 and 2019. Bryce Lehman, IAEA Nuclear Safety Officer and team leader, noted significant improvements in ageing management and the resolution of most prior issues.

The team highlighted several accomplishments, including updates to the Long Term Operation (LTO) programme, the revalidation of environmental qualifications for nuclear facility cables, and the Time Limited Ageing Analysis (TLAA) for concrete structures.

However, the team emphasized the need for ongoing work, particularly in ensuring full implementation of LTO-supporting programmes and the refurbishment of the containment monitoring system.

Keith Featherstone, Chief Nuclear Officer of Eskom’s Nuclear Operating Unit, praised the IAEA's continued support, stating that Eskom remains committed to the safe and secure operation of Koeberg for the next two decades.

A draft report has been provided to the plant's management and South Africa's National Nuclear Regulator (NNR), with the final report expected within three months.