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Energy price cap methodology: Nuclear Regulated Asset Base (RAB)

Consultation status:
Open
Publication date:
Closing date:
Topic:
Energy pricing rules
  • ➞ Energy price cap
Industry sector:
Supply and Retail Market
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We are seeking views on amending the price cap methodology to account for the Nuclear Regulated Asset Base (RAB) allowance.

Consultation description

We are consulting on our proposed methodology to account for the costs associated with the Nuclear RAB into the default tariff cap. The Nuclear RAB is a finance model that was introduced to fund new nuclear power projects under the Nuclear Energy (Financing) Act 2022.

We intend for the outcome of this consultation to be in place from January 2026 onwards.

Who should respond

We would like views from people with an interest in the default tariff cap levels and future electricity generation in the price cap. We particularly welcome responses from:

  • energy suppliers
  • other interested industry parties
  • consumer groups
  • charities
  • the public

How to respond

Submit your response by 26 September 2025 by emailing retailpriceregulation@ofgem.gov.uk.

Consultation documents