Question to the HM Treasury:

To ask the Chancellor of the Exchequer, what assessment she has made of the potential merits of including heat batteries for central heating on the list of Energy Saving Materials.

Installations of qualifying energy-saving materials (ESMs) in residential accommodation and buildings used solely for a charitable purpose benefit from a temporary VAT zero rate until March 2027, after which they will revert to the reduced rate of VAT at five per cent.

The Government assesses whether to add ESMs to this relief by evaluating them against the following tests: the primary purpose of the technology must be to improve energy efficiency and reduce carbon emissions; relieving the technology of VAT must be a cost effective lever for encouraging installations; and it must be practical for business to operate and for HMRC to administer.