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 documents below apply to all measures installed on or after 1 October.

At the time of publication, the draft ECO3 Order is still subject to parliamentary process. To assist early delivery, stakeholders may use these documents from 1 October 2018 onwards.

What it doesn’t do

It’s not intended as a definitive guide to the draft ECO3 Order. As noted above, the ECO3 Order is still in draft form, and as such, any delivery is at stakeholders’ own risk.

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.

Any measures installed before 1 April 2015, should comply with our previous guidance, which is available in the overview of previous schemes section of our website.

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 (draft for comment)

31 October 2018

Energy Company Obligation 2018-22 (ECO3) Guidance: Delivery (draft for comment) 15 November 2018

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 Child Benefit self-declaration

16 October 2018

ECO3 Data Dictionary draft

19 October 2018

ECO3 Appropriate Guarantees

14 November 2018
ECO3 Measures Table 15 November 2018

Publications and updates

  • 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.

  • Published: 20th Mar 2015
  • Guidance
  • 1 Associated documents
For all virgin loft measures installed under ECO2 this form must be completed by the assessor and the occupier/landlord to confirm that no insulation is present in all or part of the loft.

  • Published: 20th Mar 2015
  • Guidance
  • 1 Associated documents
This Boiler Assessment Checklist is designed to assist operatives in assessing whether a boiler should be repaired or replaced as a qualifying boiler.

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