Select committee: Public Accounts Committee

Conclusion 28

19th Report - Energy Bills Support Published 28 Mar 2025 Addressed to HM Treasury
Conclusion (the committee's words)
We asked the Department why it was taking so long to get small modular nuclear reactors “up and going”.85 We also asked how it was going to make sure that a high percentage of the content of a modular nuclear reactor 75 Q 6 76 Q 8 77 National Energy Systems Operator, What happened with margins on 8 January?, 14 January 2025 78 Qq 6, 67 79 Q 7 80 Clean Power 2030 Action Plan: A new era of clean electricity, December 2024 81 Q 61 82 Qq 55, 61 83 Q 61 84 Qq, 61, 62 85 Q 62 16 was from the UK (which was not the case with offshore wind farms).86 The Department told us that there was nowhere in the world with an operating small modular nuclear reactor, and that it needed to make sure the procurement exercise for this technology was run appropriately.87 86 Q 64 87 Qq 62, 64 17

From: Public Accounts Committee, 19th Report - Energy Bills Support (HC 511), 28 March 2025

Government response

Latest Treasury Minutes progress report to the Committee of Public Accounts on the Nineteenth Report of Session 2024-26

The government responded to the whole report on 4 June 2026.

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Treasury minutes: Government response to the Committee of Public Accounts on the Nineteenth report from Session 2024-26

Published 18 September 2025.

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Treasury minutes: Government response to the Committee of Public Accounts on the Nineteenth report from Session 2024-25

Published 10 July 2025.

Summary written by Accountability Index from the government's response. It is not the government's own words.

The government states that it agrees with the Committee's recommendations on lessons learned, targeted support, vulnerable consumers, electricity bills and energy supply, and disagrees with the recommendation on supplier debt advice data.

  • On lessons from the evaluations, the government agrees and says that "within one month of publication" the department will write to the Committee, with evaluations to be published by Q3 2025 (target date October 2025).
  • On targeting support, the government agrees (target September 2025) and says it is "taking the opportunity to review options for better targeting of future bill support" beyond March 2026, while describing data sharing as "complex matters".
  • On supplier debt advice data, the government disagrees. It proposes that Ofgem, as market regulator, is "better suited than DESNZ" to collect information, and says the review of Ofgem aims to publish its outcomes in autumn 2025.
  • On rebalancing electricity and gas costs, the government agrees (target July 2025) and says it "will set out proposals for rebalancing domestic energy bills in due course". It adds that it is operating in a "difficult fiscal environment".

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