Energy Company Obligation 4 and the Great British Insulation Scheme: mid-scheme changes
We're seeking views on proposed changes to the Energy Company Obligation (ECO4) scheme and Great British Insulation Scheme (GBIS).
Detail
We’re seeking views on:
- mid-scheme updates to the current Energy Company Obligation scheme (ECO4) and Great British Insulation Scheme (GBIS)
- the introduction to both schemes of a voluntary Pay-For-Performance mechanism (PFP)
PFP would reward participating suppliers for delivering retrofits with additional monitoring, thereby driving higher quality retrofits.
The consultation is open to all but of particular relevance to:
- energy suppliers
- energy efficiency installers
- energy efficiency measure manufacturers and associated software developers
- local authorities
- consumer groups
- academic groups
Read our consultation privacy notice.
Documents
Energy Company Obligation 4 and the Great British Insulation Scheme: mid-scheme changes - consultationapplication/pdfEnergy Company Obligation 4 and the Great British Insulation Scheme: mid-scheme changes - consultationECO4 and GBIS mid-scheme changes: options assessment (published and updated 20 November 2024)application/pdfECO4 and GBIS mid-scheme changes: options assessment (published and updated 20 November 2024)Clarification on the Energy Company Obligation 4 and the Great British Insulation Scheme: mid-scheme changes government response (published 10 June 2025)Energy Company Obligation 4 and the Great British Insulation Scheme: mid-scheme changes - government responseapplication/pdfEnergy Company Obligation 4 and the Great British Insulation Scheme: mid-scheme changes - government responseEnergy Company Obligation 4 and the Great British Insulation Scheme: mid-scheme changes - final stage impact assessmentEnergy Company Obligation 4 and the Great British Insulation Scheme: mid-scheme changes - equality impact assessment