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 of the effect of intelligent electrical heating on the effectiveness of Energy Performance Certificate gradings.

The Standard Assessment Procedure (SAP) is used to assess the energy performance of homes. It produces an annual estimate of a dwelling’s energy consumption, running cost and carbon emissions and these calculations form the basis of an Energy Performance Certificate (EPC). At present, we do not have a standard way of reflecting intelligent electric heating systems in SAP, so they are treated the same way as normal electric heating systems when calculating an EPC. The Department will consider how to better reflect the impact of intelligent electrical heating for the next version of SAP, SAP 11.