Question to the HM Treasury:

To ask the Chancellor of the Exchequer, whether she has made an assessment of the potential merits of expanding the list of energy-saving materials eligible for VAT relief beyond heat pumps, including heat batteries.

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 list of qualifying ESMs, which includes but is not limited to heat pumps, can be found here: https://www.gov.uk/guidance/vat-on-energy-saving-materials-and-heating-equipment-notice-7086.

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.