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Modifications to the Sizewell C Regulated Asset Base licence

We're seeking views on proposed modifications to Sizewell C Limited Company’s electricity generation licence.

Last fetched 03 May 2026 · gov.uk
Detail

This consultation seeks views on proposed modifications to Sizewell C Limited Company’s electricity generation licence. In line with duties in the Nuclear Energy (Financing) Act 2022, the Secretary of State is required to consult on any proposed modifications.

These modifications seek to allow Sizewell C Limited to collect revenue through the Regulated Asset Base (RAB) model and puts in place a series of incentives and penalties to drive the efficient construction, commissioning and operation of the planned Sizewell C nuclear power plant in Suffolk.

In line with the provisions of the Nuclear Energy (Financing) Act 2022, the Secretary of State is consulting with:

  • the licensee (Sizewell C Limited)
  • Ofgem
  • the Environment Agency
  • the Office for Nuclear Regulation
  • EDF
  • Citizens Advice
  • Consumer Scotland
  • potential investors who have prequalified for the equity raise process

Read the consultation document in conjunction with:

  • the draft licence available on this page
  • the economic guidance on Ofgem’s website

Read our consultation privacy notice.

Documents
Modifications to the Sizewell C Regulated… · Order Paper · Order Paper