Energy Company Obligation schemes: Standard Assessment Procedure (SAP) and Reduced Data SAP (RdSAP) amendments

This consultation sets out proposals for mid-scheme amendments to the Energy Company Obligation (ECO) schemes:

• ECO4
• the Great British Insulation Scheme

Both schemes run until March 2026.

We are proposing amendments to legislation so that both schemes use the latest versions of the Standard Assessment Procedure (SAP) and Reduced Data SAP (RdSAP). We would like your views on the transitional arrangements needed to make this change.

We would like to hear from a wide range of stakeholders, including:

• energy suppliers
• energy efficiency installers
• other scheme participants with views on the proposals

The consultation covers ECO4 and the Great British Insulation Scheme for the period spring 2024 to March 2026.