Written questions

Heat Batteries: Warm Homes Plan

Commons · Question 34710 · Tabled 28 Feb 2025 · Department for Energy Security and Net Zero · Official record

Answered 10 Mar 2025

Question

Asked by Clive Jones

To ask the Secretary of State for Energy Security and Net Zero, what assessment his Department has made of the potential contribution of heat battery technology to the Warm Homes Plan; and what steps he is taking to support the (a) development and (b) dep

Answer

Answered by Miatta Fahnbulleh, 10 Mar 2025

Heat batteries are a promising technology because they utilise time-of-use tariffs, do not require outside space, and can be cheaper to install than heat pumps in some circumstances. However, they are also less efficient than heat pumps and will therefore...