questionText: To ask the Secretary of State for Energy Security and Net Zero, if he will make an estimate of potential impact of the Warm Homes Discount on the cost of an average (a) gas and (b) electricity for a household that does not receive the Warm Homes Discount.
answerText: The estimates are published in Ofgem’s Annex 4 (policy cost allowance methodology - https://www.ofgem.gov.uk/sites/default/files/2025-11/Annex-4-policy-cost-allowance-methodology-v1.22.xlsx).
heading: Warm Home Discount Scheme