Renewable Energy Guarantees of Origin (REGO)

All EU member states are required to establish and maintain a Renewable Energy Guarantees of Origin (REGO) scheme. The purpose of the scheme is to promote and increase the contribution of renewable energy sources to electricity production across the EU, providing a common platform to facilitate the trade of renewable electricity between member states.

In addition, the scheme sets out increased transparency to consumers, allowing them choice to purchase renewable or non-renewable electricity.

The scheme came into effect in October 2003 in Great Britain and November 2003 in Northern Ireland. The regulations governing the schemes were amended in 2010.

Ofgem's role

We administer the scheme for generation in Great Britain on behalf of the Department of Energy and Climate Change (DECC), and in Northern Ireland on behalf of the Northern Ireland Authority for Utility Regulation.

REGO is also the name of the certificate we issue to certify that the electricity was produced from eligible renewable energy sources. We issue REGOs to accredited generating stations located in Great Britain and Northern Ireland.

One REGO is issued for each megawatt hour (MWh) of eligible renewable output generated (with effect from 5 December 2010). Prior to 5 December 2010 one REGO was issued for each kilowatt hour (kWh) of eligible renewable output generated. The primary use of REGOs in Great Britain and Northern Ireland is for Fuel Mix Disclosure (FMD). FMD requires licensed electricity suppliers to disclose to their customers, and potential customers, the mix of fuels (coal, gas, nuclear, renewable and other) used to generate the electricity supplied annually.

The CCL and REGO team also regularly report to HMRC and DECC, as well as being responsible for the annual Fuel Mix Disclosure compliance deadline.

If you have any questions relating to the REGO scheme that you are not able to find the answer for in the relevant sections of our website or guidance documents, please contact our CCL and REGO team on 020 7901 7310 (Option 3) or CCLandREGO@ofgem.gov.uk.

Publications and updates

  • Published: 29th Apr 2016
  • Factsheets
  • 1 Associated documents
This is a clarification on our Proof of UK consumption of overseas electricity consultation decision. In this document we have clarified the answers to the FAQs we have received since we published the decision originally.

  • Published: 19th Apr 2016
  • Decisions
  • 2 Associated documents
This document details our decision on proof of UK consumption of overseas electricity, following our consultation

  • Published: 1st Mar 2016
  • Decisions
  • 1 Associated documents
See our summary of the responses received and actions we have taken or will take.

  • Published: 1st Mar 2016
  • Guidance
  • 2 Associated documents
See how suppliers should provide information to Ofgem when presenting Guarantees of Origin for use in Great Britain Fuel Mix Disclosure and Feed-in Tariff (FIT) annual levelisation from 1 August 2015 onwards.

  • Published: 29th Oct 2015
  • Closed: 8th Jan 2016
  • Consultations & responses
  • 14 Associated documents
See our response to the open letter on proposed changes to the process for presenting Guarantees of Origin to Ofgem after the removal of Climate Change Levy exemption for renewables from 1 August 2015, along with stakeholder feedback.

  • Published: 22nd Apr 2015
  • Data and statistics
  • 1 Associated documents
This template is to be used by organisations seeking recognition of EU GoOs for use in GB Fuel Mix Disclosure (FMD).

  • Published: 15th Apr 2015
  • Guidance
  • 2 Associated documents
This document explains how organisations should present the information to Ofgem if they are seeking recognition of EU Guarantees of Origin (GoOs) for use in GB Fuel Mix Disclosure (FMD).

  • Published: 26th Feb 2015
  • Closed: 26th Mar 2015
  • Consultations & responses
  • 11 Associated documents
Consultation on proposed changes to the recognition process for EU Guarantees of Origin (GoOs) for GB Fuel Mix Disclosure (FMD).

  • Published: 15th Jan 2015
  • Factsheets
  • 1 Associated documents
This document answers some of the most frequently asked questions around the Climate Change Levy (CCL) Exemption for Renewables and the Renewable Energy Guarantees of Origin (REGO) schemes.

  • Published: 10th Jun 2011
  • Guidance
  • 1 Associated documents
This document provides background to the Renewable Energy Guarantees of Origin (REGO) scheme and explains the processes the operator of a generating station, or their agent, must go through to receive REGOs.

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