Under the €300m contract, Areva will design, manufacture and install six steam generators in the plant’s two reactors.

Areva will also provide associated engineering services and will increase the plant’s power yield by 10% while optimizing its output.

Areva CEO Luc Oursel said: "We are proud that Eskom has selected AREVA for this supply and service agreement that is key to ensuring power supply in South Africa and the safety of the Koeberg power plant.

"AREVA is pleased to support Eskom in meeting the country’s electricity supply needs by remaining one of the utility’s preferred partners."

Located 30km north of Cape Town, near Melkbosstrand on the west coast of South Africa, Koeberg nuclear power station is currently the only commercial one in the country.

The country’s only national electricity supplier Eskom owns and operates the Koeberg nuclear power plant which comprises two reactors.

The group’s Services, Creusot Forge and Chalon/Saint-Marcel teams will manage the steam generators production which is set to begin immediately, with installation scheduled in 2018.