Question to the Department for Energy Security & Net Zero:

How many and what proportion of households have applied to the Great British Insulation Scheme.

The Department does not hold all of the data on who has applied to the Great British Insulation Scheme (GBIS) through the different avenues. There have been over 120,000 referrals through the GBIS referral service up to March 2024.

However, the scheme is only a third of the way through, suppliers will have required time to adapt to changes and to accommodate new obligations imposed on them, and we expect the rate of installations to increase over coming months.

GBIS is one of a number of schemes improving the energy efficiency of homes across Great Britain. Its sister scheme ECO has installed 3.8m measures in 2.5m homes since 2013.