A new policy paper on the additional buildings and technologies that will benefit from VAT relief for the installation of energy-saving materials has been published. From 1 February 2024, relief will be extended to installations of energy-saving materials in buildings used solely for relevant charitable purposes. It will also cover water-source heat pumps, electrical batteries that store electricity and diverters that allow excess electricity to be used in a building where it is generated rather than exported to the grid.