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Sizewell C Power Station

Asked by Mr Clive BettsLabourDepartment for Energy Security and Net ZeroTabled Answered 15 September 2025UIN 76240

The question

To ask the Secretary of State for Energy Security and Net Zero, what proportion of castings and forgings for Sizewell C will be produced in the UK.

Answered by Michael Shanks

Sizewell C plans to award 70% of construction value to British businesses, and the supply chain is expected to include 3500 British companies, from all four parts of the UK. The project has already placed more than £4bn-worth of contracts with UK companies.

Sizewell C will be a second of a kind project, as an above ground replica of Hinkley Point C. As well as the design, Sizewell C will replicate many aspects of Hinkley’s supply chain; this is expected to give greater certainty of cost and construction requirements, which will ultimately benefit UK taxpayers and consumers.

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