Question to the Department for Energy Security & Net Zero:

To ask the Secretary of State for Energy Security and Net Zero, if he will take steps to amend the methodology used in the standard assessment procedure on the use of non-storage heaters to ensure that it does not negatively impact the energy performance certificate of affected properties.

The Government is committed to making the Standard Assessment Procedure (SAP) methodology more accurate, robust and fit for purpose to support our commitments to Net Zero. Government has commenced work on an update to the Reduced Data SAP (RdSAP) which underpins energy performance certificates in existing buildings. This will be introduced in due course.