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

To ask the Secretary of State for Business, Energy and Industrial Strategy, what steps he is taking to improve measurement and reporting of (a) home energy efficiency ratings by EPC bands and (b) the number of existing homes moving between EPC bands.

In line with the Government’s agenda to make data easily accessible, Energy Performance Certificate (EPC) data is available on the DLUHC Open Data Communities website to allow people to carry out their own analyses. However, DLUHC does not track movement between EPC Bands.

The Government updated the methodology used for EPC calculations in new homes to improve its accuracy in June 2022 and is working on an update to the methodology used in existing homes.