Summary of the Great British Insulation Scheme: December 2023
Published 21 December 2023
Applies to England, Scotland and Wales
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Introduction
The Great British Insulation Scheme (GBIS) is a government scheme to help people insulate their homes, make them more energy efficient and save money on their energy bills.
The government announced the scheme at the end of March 2023. The £1 billion scheme will help around 300,000 households across the country with the cost of installing new home insulation. The scheme is scheduled to run until March 2026.
What you need to know about these statistics
These statistics are based on preliminary data provided by TrustMark, covering installations of measures between May and November 2023. The data are based on the handover date for completed measures as recorded in the TrustMark Data Warehouse.
Once measures are lodged with TrustMark they are notified to Ofgem who carry out verification checks. As these data have not been subject to checks by Ofgem the data are subject to revision.
A sizeable number of measures installed under GBIS are logged with TrustMark retrospectively, typically within a month after the installation date. This means the number of measures installed in the latest month of each statistical release is likely to be revised upwards in the next release.
Please note, these data are Official Statistics in development as they use data from the TrustMark Data Warehouse. They are to be used as an indication of measures installed under GBIS so far. These figures will be revised in future publications once data on measures installed from Ofgem is available.
Key statistics
Delivery by month
Since the start of the GBIS, there have provisionally been 2,566 measures installed in 2,194 households up to the end of November 2023.
Delivery levels have increased sharply in the last 2 months, from a run rate of around 200 measures per month, to 702 in October and 1,011 in November. Due to a lag in reporting from installers, we expect to see a further increase in November delivery in next month’s publication.
Figure 1: Number of measures installed by installation month
Delivery by measure type
The most popular measure so far has been cavity wall insulation, accounting for 62% (1,600 measures) of the total 2,566 measures. This was followed by loft insulation which accounted for 15% (383 measures) and heating controls which accounted for 14% (367 measures).
Figure 2: Number of measures installed by measure type
Delivery by region
The highest regional delivery has been in the South East (452 measures, 18%), followed by Yorkshire and The Humber (343 measures, 13%) and the South West (302 measures, 12%).
Figure 3: Proportion of total measures installed by geographic region
There have been 2,194 households upgraded under GBIS up to the end of November 2023, meaning they have had at least one measure installed. The regional breakdown of upgraded households is largely the same as the regional breakdown of measures installed, as the majority of households (2,000 out of 2,194) have had only one measure installed under the scheme.
Figure 4: Proportion of total households upgraded by geographic region
Annex: Further Information
Next publication date
The next publication will be at 09:30am on Thursday 18 January 2024.
Scheme Information
More information on the GBIS scheme can be found at the Department’s website and at Ofgem.
Accompanying tables
Tables showing the number of measures installed and households upgraded under GBIS are available.
Revisions policy
The Department’s statistical revisions policy sets out the revisions policy for these statistics, which has been developed in accordance with the UK Statistics Authority Code of Practice for Statistics.
User engagement
Users are encouraged to provide comments and feedback on how these statistics are used and how well they meet user needs. Comments on any issues relating to this statistical release are welcomed and should be sent to: EnergyEfficiency.Stats@energysecurity.gov.uk. The Department’s statement on statistical public engagement and data standards sets out the department’s commitments on public engagement and data standards as outlined by the Code of Practice for Statistics.
Pre-release access to statistics
Some ministers and officials receive access to these Official Statistics up to 24 hours before release. Details of the arrangements for doing this and a list of the ministers and officials that receive pre-release access to these statistics can be found in the Department’s statement of compliance with the Pre-Release Access to Official Statistics Order 2008.
Contact
Responsible statisticians: Isi Avbulimen and Mark Piatek
Email: EnergyEfficiency.Stats@energysecurity.gov.uk
Media enquiries: 020 7215 1000
Public enquiries: 07927 579551