Changes to the scheme

Mae’r dudalen yma ar gael yn Gymraeg.

The Domestic Renewable Heat Incentive (RHI) is a government financial scheme to promote the use of renewable heat. The Department for Business, Energy & Industrial Strategy (BEIS), formerly known as The Department of Energy and Climate Change (DECC), develops the scheme policy and rules. Ofgem implements and administers the scheme.

The government periodically reviews policy which means the rules can change for both existing and new participants. To achieve successful accreditations and keep receiving your payments, it’s important you keep up to date with the scheme rules.

We’ll publish the information you need to know if policy changes are planned, or introduced, in this section of our website. Please note that the content and timing of any changes we outline will be subject to parliamentary process. Our updates are based on information provided by BEIS.

Recent changes

Changes to MCS installation standards for heat pumps

Effective from 31 July 2017, the Department for Business, Energy & Industrial Strategy (BEIS) introduced a change to the Domestic RHI Regulations to reflect the latest version of the Microgeneration Certification Scheme (MCS) installation standard for heat pumps.

Version 5.0 of MIS 3005 of the MCS standards was introduced by MCS on 28 April 2017; taking effect from 17 May 2017. From 30 October 2017 onwards, heat pumps must be installed in accordance with this version of the MCS standards.

Which standards should my heat pump reflect?

Applications submitted to the Domestic RHI before 31 July 2017: For heat pumps with a first commissioning date before 31 July 2017, they should meet version 4.3 MIS 3005 standards to be considered eligible for the Domestic RHI; providing all other eligibility criteria are met.

Applications submitted to the Domestic RHI on or after 31 July 2017: For heat pumps with a first commissioning date on or after 31 July 2017, they can meet either version 4.3 or version 5.0 MIS 3005 standards to be considered eligible for the Domestic RHI; providing all other eligibility criteria are met.

Applications submitted to the Domestic RHI on or after 30 October 2017: For heat pumps with a first commissioning date on or after 30 October 2017, they must meet version 5.0 of MIS 3005 to be considered eligible for the Domestic RHI; providing all other eligibility criteria are met.

What do the MCS standards do?

Microgeneration Certification Scheme (MCS)open key term pop-up standards make sure installers meet a quality mark and demonstrate compliance to industry standards. The microgeneration installation standard outlines the requirements for MCS installers undertaking the supply, design, installation, set to work, commissioning, and handover of microgeneration heat pump systems.

Please make sure your MCS installer is aware of these changes.

Government consultation response on changes to the RHI

The Department for Business, Energy & Industrial Strategy (BEIS) has published a response to its consultation on changes to the Domestic Renewable Heat Incentive (RHI) scheme. You can read the consultation response, ‘The Renewable Heat Incentive: A Reformed Scheme’ in full on the BEIS website.

Subject to Parliamentary approval, the changes to the Scheme Regulations that are announced in the consultation response are expected to come into effect in spring 2017. The Government has also published the draft Domestic Renewable Heat Incentive Scheme (Amendment) Regulations 2017.

We’ve produced a supplementary factsheet about the changes: Factsheet: Important changes to the Domestic RHI scheme.

Other recent changes to the Domestic RHI

Historical changes

Next steps

To find out more, see:

Thinking about applying?

Already a participant?

Microgeneration Certification Scheme (MCS)

All renewable heating systems in the Domestic RHI must be certified by MCS. This is an internationally recognised quality assurance scheme supported by government. You’ll need an MCS certificate number to support your application. More.

Publications and updates

  • Published: 4th Apr 2017
  • Consultations and responses, Factsheets, Guidance
  • 1 Associated documents
This factsheet provides a brief summary of the policy changes to the Domestic RHI scheme which the Government announced in its consultation response ‘The Renewable Heat Incentive: A Reformed Scheme’.