ECO guidance and associated documents

Here you can access guidance and publications on the ECO scheme.

What our guidance does

It outlines:

  • how we determine which suppliers are obligated
  • how obligated suppliers can meet their obligations
  • when and what suppliers need to report on, and
  • information on ECO measures.

The ECO3 scheme commenced on 3 December 2018 and runs until 31 March 2022. The documents below apply to all measures installed on or after 1 October.

What it doesn’t do

It’s not intended as a definitive guide to the ECO3 Order.

Previous ECO schemes

Any measures installed between 1 April 2017 and 30 September 2018, should comply with our ECO2t guidance and associated documents.

Any measures installed between 1 April 2015 and 31 March 2017, should comply with our ECO2 guidance and associated documents.

If you’re unable to find the document you are looking for, contact the ECO team who will be happy to help.

ECO3 Key Scheme Resources (From 1 October 2018)

Guidance

Date Published

Energy Company Obligation 2018-22 (ECO3) Guidance: Supplier Administration

31 October 2018

Energy Company Obligation 2018-22 (ECO3) Guidance: Delivery

15 November 2018

Energy Company Obligation (ECO3) Guidance: Innovation 5 February 2019

 

Publication

Date Published

ECO3 Pre-existing Loft Insulation Declaration

27 September 2018

ECO3 Social housing E, F and G declaration & landlord permission

28 September 2018

ECO3 Private housing FTCH declaration & private rented sector landlord permission

28 September 2018

ECO3 Boiler Assessment Checklist

02 October 2018

ECO3 Electric Storage Heater Checklist

02 October 2018

ECO3 Privacy policy

10 October 2018

ECO3 Child Benefit self-declaration

16 October 2018

ECO3 Data Dictionary

19 October 2018

ECO3 Appropriate Guarantees

14 November 2018

ECO3 Measures Table

15 November 2018

ECO3 Deemed Scores Matrix

30 November 2018

ECO3 Notification Template

3 December 2018

ECO3 Templates to evidence private domestic premises

3 December 2018

ECO3 Monitoring

25 January 2019

ECO3 Notice of receipt of an application for extension

31 January 2019

ECO3 Address formatting guidance note

31 January 2019

ECO3 Notifying a supplier of a decision to refuse or revoke approval of a measure

31 January 2019

ECO3 Alternative methodologies

31 January 2019

ECO3 District Heating Pre-Conditions (Insulation): Technical Report Template

28 March 2019

ECO3 District heating systems (DHS) factsheet and summary of proposal (SoP)

29 March 2019

ECO3 Toolkit

15 May 2019

Publications and updates

  • Published: 1st Dec 2015
  • Guidance
  • 2 Associated documents
The administration guidance is aimed mainly at suppliers, describing the processes that suppliers and Ofgem follow to meet the requirements of the ECO2 Order.

  • Published: 1st Dec 2015
  • Guidance
  • 2 Associated documents
The delivery guidance is aimed at suppliers and the broader supply chain, describing how to deliver measures that are eligible to contribute towards the ECO targets.

  • Published: 19th Nov 2015
  • Guidance
  • 5 Associated documents
Guidance for suppliers on technical and score monitoring for measures installed under ECO2.

  • Published: 19th Oct 2015
  • Guidance
  • 1 Associated documents
Ofgem's 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 Sep 2015
  • Open letters and correspondence
  • 2 Associated documents
This update explains how we have amended the way we let energy suppliers know if we have refused or revoked approval of an energy efficiency measure under the Energy Company Obligation (ECO).

  • Published: 17th Jun 2015
  • Guidance
  • 1 Associated documents
This document is to help suppliers and the supply chain in providing evidence for private domestic premises. It supports the current ECO Guidance: Delivery.

  • Published: 1st Apr 2015
  • Factsheets
  • 1 Associated documents
Before installing certain Energy Company Obligation (ECO) energy efficiency measures in homes, they must be recommended by a chartered surveyor, or via a Green Deal report.

  • Published: 1st Apr 2015
  • Open letters and correspondence
  • 1 Associated documents
This explains how we let energy suppliers know that we have received an application to extend the notification deadline for a completed measure under the Energy Company Obligation (ECO).

  • Published: 31st Mar 2015
  • Guidance, Other
  • 0 Associated documents
We are administering the Energy Company Obligation (ECO) until 31 March 2017.

  • Published: 30th Mar 2015
  • Guidance
  • 1 Associated documents
This document aims to assist suppliers and the supply chain in evidencing Affordable Warmth Group (AWG) eligibility. It supports the existing ECO2 Guidance: Delivery.

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