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Sizewell C Funded Decommissioning Programme: Contingent Liability (Public on the hook)

 I am pleased to have laid a departmental minute describing the contingent
liabilities arising from the signing of the funded decommissioning
programme and Government support package for Sizewell C. The funded
decommissioning programme at Sizewell C will be funded via the regulated
asset base. The regulated asset base contains a series of protections that
aim to minimise the risk that public funds will be required to meet
decommissioning costs.

However, in certain remote circumstances whereby all
the protections afforded by Sizewell C’s economic licence fall away or a
shortfall in the fund materialises, public funds could be used to
contribute towards decommissioning costs and this liability would
crystalise. Based on best estimates by the Government Actuary Department,
the maximum potential exposure from the liability is £12 billion—in 2022
terms. This has been estimated on a worse-case scenario whereby the
Government were required to meet the full costs of decommissioning the
Sizewell C power plant.

 Hansard 1st Sept 2025, https://hansard.parliament.uk/commons/2025-09-01/debates/25090137000015/SizewellCFundedDecommissioningProgrammeContingentLiability

September 4, 2025 - Posted by Christina Macpherson | decommission reactor, UK