ECO guidance

We are administering the Energy Companies Obligation (ECO) until 31 March 2015 and will administer the extension of ECO from April 2015 until March 2017. As such our duties include, but are not limited to:

  • the allocation of a proportion of the overall targets to qualifying suppliers
  • the monitoring of supplier progress and determining whether they have achieved their obligations
  • reporting to the Secretary of State for Energy and Climate Change
  • audit, compliance and the prevention and detection of fraud.

Further information concerning our duties, as well as detailed guidance for suppliers about their requirements as set out by law, can be found in the document Energy Companies Obligation (ECO): Guidance for Suppliers.

The Guidance outlines:

  • which energy suppliers are obligated under the scheme
  • how they can meet their obligations
  • when and what they need to report on
  • information on ECO recommended measures.

The Guidance covers the three ECO obligations for energy companies:

  1. the Carbon Emissions Reduction Obligation (CERO)
  2. the Carbon Savings Community Obligation (CSCO)
  3. the Home Heating Cost Reduction Obligation (HHCRO).

The Guidance document is not intended to be a definitive guide. It is the responsibility of individual suppliers to understand the provisions of The Electricity and Gas (Energy Companies Obligation) (Amendment) Order 2014.


Publications and updates

  • Published: 11th Feb 2015
  • Guidance
  • 0 Associated documents
On 1 April 2015 the ECO2 obligation period begins. Ahead of this, we are publishing all ECO2 guidance and notification documents on this page.

  • Published: 14th Jan 2015
  • Guidance
  • 1 Associated documents
Guidance notes on specific HHCRO requirements.

  • Published: 5th Dec 2014
  • Guidance
  • 9 Associated documents
Our guidance document provides guidance to suppliers on the requirements of the Energy Companies Obligation in accordance with legislation and our administrative processes.

  • Published: 4th Dec 2014
  • Guidance
  • 1 Associated documents
Ofgem's new ECO Toolkit for installers and other third parties involved in delivering ECO measures. This suite of resources aims to improve understanding of how an ECO measure is processed.

  • Published: 17th Oct 2014
  • News
  • 0 Associated documents
This update explains the proposed changes the government has made for the Energy Companies Obligation and our planned guidance revisions to incorporate these.

  • Published: 22nd May 2014
  • Guidance
  • 4 Associated documents
This document provides supplementary guidance in relation to specific categories of hard-to-treat cavity wall insulation under the Energy Companies Obligation (ECO) and should be read in conjunction with the

  • Published: 22nd May 2014
  • Other
  • 0 Associated documents
This page provides details of Ofgem templates which we have produced or updated to reflect suggestions from the working group.