Question to the Department for Business, Energy and Industrial Strategy:

To ask the Secretary of State for Business, Energy and Industrial Strategy, what assessment he has made the potential effect of the rating methodology for the Energy Performance Certificate based on fuel cost on the installation of low carbon heating in rural homes.

The Standard Assessment Procedure (SAP) and Reduced Data SAP (RDSAP) methodologies which underpin Energy Performance Certificates are updated regularly in line with updates to Part L of the Building Regulations. We will keep it under review as we develop policies and plans for decarbonising buildings and reducing fuel poverty. Assessments of impact on installation of low carbon heat will be made on a policy by policy basis.