ECO publications library

This library contains links to all our publications on the Energy Company Obligation (ECO).

The default setting lists all documents published this year, but you can select earlier years and also filter by a specific information type using the fields at the top of the table.

To keep your selection, right-click on a result of interest and open in a new tab.

You can view all ECO consultations on the consultation and feedback section of our website.

DateTitleInformation type(s)Main documentSubscribe
18/08/2017Energy Company Obligation monthly update: Issue 25 – July 2017
  • News and blogs
Energy Company Obligation monthly update: Issue 25
07/08/2017ECO stakeholder delivery group July 2017
  • Agendas, minutes and presentations
ECO stakeholder delivery group slides Jul 2017
31/07/2017Infographic: Promoting a sustainable energy future
  • Charts and data
Infographic: Promoting a sustainable energy future
28/06/2017Energy Company Obligation monthly update: Issue 24 – June 2017
  • News and blogs
Energy Company Obligation monthly update: Issue 24
13/06/2017Response to the Scottish Government's 'Consultation on a Scottish Energy Strategy: The future of energy in Scotland'
  • Open letters and correspondence
Response to the Scottish Government's ‘Consultation on a Scottish Energy Strategy: The future of energy in Scotland'
09/06/2017Business Impact Target
  • Reports and plans
Qualifying Regulatory Provisions
31/05/2017ECO2t Guidance note: private domestic premises
  • Guidance
ECO2t Guidance note: private domestic premises
23/05/2017Energy Company Obligation monthly update: Issue 23 – May 2017
  • News and blogs
Energy Company Obligation monthly update: Issue 23
23/05/2017Energy Company Obligation monthly update: Issue 22 – April 2017
  • News and blogs
Energy Company Obligation monthly update: Issue 22
22/05/2017ECO2t Determining whether premises are domestic premises
  • Guidance
ECO2t Determining whether premises are domestic premises
04/05/2017ECO2t Monitoring
  • Guidance
04/05/2017ECO2t Appropriate and alternative methodologies
  • Guidance
21/04/2017Response to the Building Our Industrial Strategy green paper
  • Open letters and correspondence
Response to the Building Our Industrial Strategy green paper
21/04/2017E-Serve Supplier Performance Report consultation response
  • Decisions
E-Serve Supplier Performance Report consultation response
12/04/2017Energy Company Obligation 2017-18 (ECO2t) Guidance: Delivery
  • Guidance
Energy Company Obligation 2017-18 (ECO2t) Guidance: Delivery
12/04/2017Energy Company Obligation 2017-18 (ECO2t) Guidance: Administration
  • Guidance
Energy Company Obligation 2017-18 (ECO2t) Guidance: Administration
12/04/2017Response to the Scottish Government's ‘Consultation on Heat and Energy Efficiency Strategies, and Regulation of District Heating’
  • Open letters and correspondence
Response to the Scottish Government's ‘Consultation on Heat and Energy Efficiency Strategies and Regulation of District Heating’
12/04/2017Summary of amendments to the ECO2 guidance for ECO2t (April 2017 - September 2018)
  • Guidance
Summary of amendments to the ECO2 guidance for ECO2t (April 2017 – September 2018)
07/04/2017ECO2t File naming convention
  • Guidance
ECO2t File naming convention
04/04/2017ECO2t Matrix of ECO requirements by measure
  • Guidance
ECO2t Matrix of ECO requirements by measure
03/04/2017ECO2 Guidance and Associated Documents
  • Guidance
31/03/2017The extension to the Energy Company Obligation Scheme
  • Press releases
31/03/2017ECO2t District heating pre-conditions (insulation): Technical report template
  • Guidance
ECO2t District heating pre-conditions (insulation): Technical report template
31/03/2017ECO2t Toolkit
  • Guidance
ES992_ECO Toolkit_March 2017
30/03/2017The ECO tool
  • Guidance
30/03/2017ECO2t Privacy policy
  • Guidance
ECO2t Privacy policy
30/03/2017ECO2t Notice of receipt of an application for extension
  • Guidance
ECO2t Notice of receipt of an application for extension
29/03/2017Forward Work Programme 2017-18
  • Decisions
Forward Work Programme 2017-18
28/03/2017ECO2t Deemed scores
  • Guidance
Deemed Scores Matrix - Lifetime scores v1.3
28/03/2017Energy Company Obligation monthly update: Issue 21 – March 2017
  • Guidance
Energy Company Obligation monthly update: Issue 21
28/03/2017ECO2t Social housing E, F and G declaration
  • Guidance
ECO2t Social housing E, F and G declaration
22/03/2017Response to ECO2t consultation part two
  • Consultations and responses
Response to ECO2t consultation part two
21/03/2017ECO Reporting Working Group: ECO2t Standardised templates
  • Guidance
16/03/2017ECO2t Help to heat group guidance note
  • Guidance
ECO2t Help to heat group guidance note
16/03/2017ECO2t FAQs for domestic consumers
  • Guidance
ECO2t FAQs for domestic consumers
16/03/2017ECO2t Open letter: Standards of installation for room-in-roof insulation
  • Open letters and correspondence
ECO2t Open letter: Standards of installation for room-in-roof insulation
16/03/2017ECO2t Electric storage heater assessment checklist
  • Guidance
ECO2t Electric storage heater assessment checklist
16/03/2017ECO2t Boiler Assessment Checklist
  • Guidance
ECO2t Boiler Assessment Checklist
16/03/2017ECO2t HHCRO Templates to evidence private domestic premises
  • Guidance
ECO2t HHCRO Templates to evidence private domestic premises
16/03/2017ECO2t Address formatting guidance note
  • Guidance
ECO2t: Guidance note on address formatting
14/03/2017Ofgem’s Future Insights paper 4 - The futures of domestic energy consumption
  • Reports and plans
Ofgem’s Future Insights series – The Futures of Domestic Energy Consumption
28/02/2017ECO2t: Notifying a supplier of a decision to refuse or revoke approval of a measure
  • Guidance
28/02/2017ECO2t appropriate guarantees
  • Guidance
ECO2t Appropriate guarantees
28/02/2017ECO2t: Pre-existing loft insulation declaration
  • Guidance
ECO2t Pre-existing loft insulation declaration template
27/02/2017Energy Company Obligation monthly update: Issue 20 – February 2017
  • News and blogs
ECO Monthly Update - February
15/02/2017Energy Company Obligation (ECO) Monitoring Report (April–June 2016)
  • Reports and plans
Energy Company Obligation (ECO) Monitoring Report (April– June 2016)
14/02/2017Ofgem’s approach to the closedown of ECO2 CSCO obligation
  • Open letters and correspondence
ECO2 CSCO closedown letter
10/02/2017Response to ECO2t consultation part one and draft guidance update
  • Decisions
Response to ECO2t consultation part one
10/02/2017Room in roof insulation investigation update
  • Investigations
09/02/2017ECO stakeholder delivery group February 2017
  • Agendas, minutes and presentations
ECO stakeholder delivery group slides Feb 2017
02/02/2017ECO2t Measures Table
  • Guidance
ECO2t Measures Table
02/02/2017ECO2t Notification Template
  • Guidance
ECO2t Notification Template
02/02/2017ECO2t Data Dictionary
  • Guidance
ECO2t Data dictionary
02/02/2017ECO2t consultation part two
  • Consultations and responses
ECO2t consultation part 2
31/01/2017Energy Company Obligation monthly update: Issue 19 – January 2017
  • News and blogs
ECO Monthly Update - January
30/01/2017Ofgem’s Future Insights paper 3 - Local energy in a transforming energy system
  • Reports and plans
Ofgem’s Future Insights series – Local Energy in a Transforming Energy System
10/01/2017Letter to the Secretary of State on Social and Environmental Guidance, 2016
  • Open letters and correspondence
Letter to the Secretary of State on Social and Environmental Guidance, 2016
03/01/2017Energy Company Obligation monthly update: Issue 18 – December 2016
  • News and blogs
ECO Monthly Update - December