Question to the Department for Energy Security & Net Zero:

To ask the Secretary of State for Energy Security and Net Zero, pursuant to the Answer of 8 September 2026 to Question 23375 on Cost Effectiveness, if she will publish a breakdown of the (a) project cancellations and (b) wider departmental savings that will comprise the £2 billion saving outlined in the Defence Investment Plan Funding Explainer.

DESNZ is reprioritising its budget to contribute towards the Defence Investment Plan. The government is prioritising delivery of mature carbon capture, usage and storage (CCUS) and hydrogen projects at the Teesside, Merseyside and North Wales clusters, and maintaining grant funding for the Viking cluster The funding already allocated to Acorn this year remains in place and future support would be provided through financial transactions to deliver greater value for money for taxpayers, subject to approvals.

The government remains committed to heat pump deployment and will maintain the Boiler Upgrade Scheme at current funding levels of £400 million in 2027-28 and rising broadly in line with inflation thereafter. The majority of WHP funding for low-income households and social housing, delivered by mayors and councils, is protected. Great British Energy (GBE) and GBE-N retain £8.3 billion across the spending review period. Further information is available in the published Budget 2026 document.