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Written question asked by Alistair Strathern (Labour) on Monday, 8 June 2026, in the House of Commons. It was due for an answer on Thursday, 11 June 2026 (named day). It was answered by Martin McCluskey (Labour) on Thursday, 11 June 2026 on behalf of the Department for Energy Security and Net Zero.


Energy Performance Certificates: Batteries

Question

To ask the Secretary of State for Energy Security and Net Zero, what assessment he has made of the potential merits of enabling stand alone batteries (without solar PV) to contribute towards a properties EPC rating.

Answer

In the Home Energy Model (HEM): Energy Performance Certificate (EPC) consultation, we proposed how technologies including batteries could contribute to future EPC ratings.

The introduction of HEM will enable a half hour resolution that can more accurately estimate the impact of batteries on a home’s energy performance.

We are currently reviewing the consultation responses, including on the weighting of the different technologies in the EPC metrics. We will publish a Government Response by the end of the year.


Secondary information

Type
Written question
Reference
7771
Session
2026-27
Transferred
Yes
Subjects
Energy performance certificates Batteries
Link
View this Written question on www.parliament.uk