Contacts, guidance and resources

This section is primarily for those actively involved in delivering the Energy Company Obligation (ECO). This includes obligated energy suppliers, those in the ECO supply chain, and interested stakeholders.

The information in this section relates to measures installed from 1 April 2017 only, and documents relating to this period are labelled ECO2t. Different rules apply to measures installed prior to 1 April 2017. Guidance resources for this period are still accessible on our website and are clearly labelled as applying to measures installed before 1 April 2017 (ECO2). 

The key documents and resources needed to successfully deliver measures under the scheme can be found on our ECO guidance page, and all recent ECO consultations and decisions located in our consultations and feedback page.

Our ECO public reports, updated on a monthly basis, show suppliers progress towards obligations, and our forums and working groups page provides the latest updates and resources from forums such as the ECO reporting working Group, ECO suppliers’ Forum, and ECO stakeholder delivery group.

If you can’t find the information you’re looking for, get in touch with us at and we’ll be happy to help.