Question to the Department for Business, Energy and Industrial Strategy:

To ask Her Majesty's Government what estimate they have made of how many annual extra heat pump installations the introduction of the interim uplift to building energy efficiency requirements from June 2022 will incentivise.

There will be several routes to compliance with the 2021 uplift, and it is therefore not possible to produce a robust estimate of the number of annual heat pump installations that will result. Modelling from the Department for Levelling Up, Housing and Communities produced as part of their impact assessment in the case of domestic properties specifically, estimates that around 10% of new homes built in 2022 could include an air source heat pump.