Sizewell C nuclear power station

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Sizewell C is a nuclear power station under construction at Sizewell in Suffolk, England. It will consist of two EPR reactors with a combined capacity of 3,200 MWe. The project was proposed by a consortium of EDF Energy and China General Nuclear Power Group, who at the time owned 80% and 20% of the project respectively. The site is adjacent to the current Sizewell B nuclear power station. In 2022, the UK Government announced a buy-out to allow for the exit of CGN from the project and forming a 50% stake with EDF, though EDF expected this to fall below 20% following anticipated external investment. The final investment decision was made on 22 July 2025, with the UK government taking an initial shareholding of 44.9% (specifically the Secretary of State for Energy Security and Net Zero), with the remainder consisting of La Caisse, Centrica, EDF, and Amber Infrastructure. The power station is expected to meet up to 7% of the UK's electricity demand, once the addition has been constructed. The...

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