Official Statistics

Great British Insulation Scheme release: June 2026

Statistical release on Great British Insulation Scheme (GBIS) statistics to monitor the installation of energy efficiency measures in domestic properties in Great Britain.

• From: Department for Energy Security and Net Zero
• Published: 25 June 2026

Applies to England, Scotland and Wales

Documents

Summary of the Great British Insulation Scheme: June 2026

HTML

Great British Insulation Scheme statistics: June 2026 (Excel)

MS Excel Spreadsheet, 198 KB

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Great British Insulation Scheme statistics: June 2026 (ODS)

ODS, 171 KB

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Details

Revisions to measure delivery

Please note that the Ofgem data featured in this release continues to be provisional and subject to revision pending ongoing processing and validation of measures by Ofgem. We are proposing that one more publication will be produced in autumn 2026 to cover any final revisions.

This release includes measures installed and households upgraded under the Great British Insulation Scheme (GBIS).

As part of the scheme monitoring, the analysis is shown by measure type and geographical region. This scheme covers Great Britain. Data provided in the monthly release are two months in arrears.

These statistics are provisional and are subject to future revisions.

Enquiries about these statistics should be directed to:  energyefficiency.stats@energysecurity.gov.uk

Published 25 June 2026