The Energy Company Obligation (ECO) is a government energy efficiency scheme in Great Britain to help reduce carbon emissions and tackle fuel poverty. You can find out more here about how the scheme affects consumers, suppliers, installers and industry.

Support for improving your home

Want to install energy efficiency measures in your home? Find out how ECO works and how you could benefit.

Installers and industry

Find out which measures can be installed under ECO and how to deliver them.

Energy suppliers

Essential information for suppliers who have obligations under the scheme.

About the ECO scheme

Key information about the scheme, including on the ECO obligations, our role and where to find out more.

Contacts, guidance and resources

See our public reports, as well as consultations and guidance.

Overview of previous schemes

Learn more about Great Britain's previous energy efficiency schemes.