Written Question·Department for Energy Security and Net Zero·UIN 81800

Energy Company Obligation: Fraud

Tabled: 14 October 2025
Answered: 22 October 2025

Question

Sir John Hayes

Conservative — South Holland and The Deepings

To ask the Secretary of State for Energy Security and Net Zero, what estimate his Department has made of the level of suspected fraud on the Energy Company Obligation since 2022.

Answer

Martin McCluskey
The NAO reports that DESNZ and Ofgem have lacked data to estimate fraud levels. However, an independent reporting in May 2025 found weaknesses in the design, operation and oversight of ECO4 that expose it to fraud. The Department contracted public and pri...
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