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Departmental Contingent Liability Notification; Sizewell C Funded Decommissioning Programme and Government Support Package

01 September 2025

Proposing MP
Michael Shanks Lab
Rutherglen
Type
Written Ministerial Statement
Department
Department for Energy Security and Net Zero
View on Parliament.uk -->

At a Glance

Issue Summary

This statement describes the contingent liabilities arising from the signing of the Funded Decommissioning Programme and Government Support Package for Sizewell C.

Action Requested

The Minister has laid a Departmental Minute in Parliament to notify about these contingent liabilities, which will come into effect on October 1st. The aim is to allow sufficient Parliamentary scrutiny before any changes are made.

Key Facts

  • The contingent liability from the Funded Decommissioning Programme could be up to £12bn under a worst-case scenario.
  • There are four contingent liabilities associated with the Government Support Package, with total maximum exposure estimated at the maximum Regulated Asset Base value for three limbs.
  • The Departmental Minute was laid today due to Summer and Conference Recess timings, allowing as much Parliamentary sitting time as possible before the liability is undertaken on October 1st.
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