Final investment decision signed on Sizewell C with cost almost doubling to £38bn

By Tom Lowe2025-07-22T10:58:00

Previous official figures estimated Suffolk nuclear plant would cost £20bn

The government has signed the final investment decision on the Sizewell C nuclear power plant with the cost of the scheme set at £38bn, almost double the £20bn previously forecast.

Energy secretary Ed Miliband has agreed a deal with a group of private investors which will see the government take a 44.9% stake in the project as the largest equity shareholder.

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