Non-Domestic Renewable Heat Incentive (RHI)

31 March 2023 – The NDRHI scheme in Great Britain closed to all new applications for accreditation. Currently accredited installations can be replaced, relocated, or sold whilst maintaining their accreditation. In these cases, a new application for re-accreditation must be made.

Find out more on our Change of Ownership page and Relocations and Replacements page.

23 November 2022 - To mitigate against wood pellet shortages, the certification requirements for wood pellets only has been suspended for 12 months, from 23 November 2022 to 22 November 2023. To learn more about these updated requirements, you can read Chapter 4 of our Non-Domestic RHI Guidance Volume 2: Ongoing Obligations and Payments. 

1 April 2022 - New annual maintenance requirements came into effect for those using solid biomass, or solid biomass contained in waste, as fuel in an accredited biomass boiler. The changes require participants to ensure a maintenance check is carried out in each payment year (or 12 month period). Read chapter 7 of our guidance for more information.

31 March 2022 - BEIS introduced new Woodfuel quality requirements for wood pellets used in biomass installations. A summary of the requirements can be found in Chapter 7 of our NDRHI Closure Guidance.

10 March 2022 - NDRHI: Non-Tariff Guarantee Extension Applications Budget Information.

31 March 2021 - The Non-Domestic Renewable Heat Incentive Scheme (NDRHI) in Great Britain closed to new applicants on 31 March 2021. 

NDRHI Closure Guidance

21 July 2020 – Changes were introduced to the NDRHI Tariff Guarantee scheme, including a flexible allocation of tariff guarantees, an extended deadline to commissioning and stipulations around existing deadlines. A summary of these changes can be found in our Changes to the Non-Domestic RHI Regulations (July 2020) publication.

May 2019 – Following a consultation, the option to have a formal review following a decision made by Ofgem was removed. The statutory review process is the only review option for decisions made and is carried out by Ofgem. Read more about this in our Decision to remove the formal review process on the Non-Domestic RHI publication.

01 October 2018 - New regulations were introduced to allow participants to replace their accredited installation, change the circumstances under which 'estimated data' can be submitted, and introduce requirements regarding environmental permits. A summary of these changes can be found in our Changes to the Non-domestic RHI regulations (October 2018) publication.

20 June 2018 - New RHI Regulation changes were introduced for biomethane producers and came into effect on 20 June 2018. A summary of these changes can be found in our Changes to the Non-domestic RHI regulations (June 2018) publication.

28 May 2018 - New RHI Regulations were introduced, including changes to the scheme and new policies such as tariff guarantees and shared ground loops. A summary of these changes can be found in our Changes to the Non-Domestic RHI regulations (May 2018) publication.

08 February 2018 - New RHI Regulations were laid by BEIS, introducing changes to the scheme and new policies such as tariff guarantees and shared ground loops. A summary of these changes can be found in our Changes to the Non-Domestic RHI regulations (February 2018) publication.

29 September 2017 - BEIS introduced changes to the small, medium and large installation tariff rates from 20 September 2017. A summary of these changes can be found in our Changes to the Non-Domestic RHI regulations (September 2017) publication.

20 April 2017 - Details about State aid transparency requirements were published on our website.

03 January 2017 - The Department for Business, Energy and Industrial Strategy (BEIS) has introduced legislation on the support for biomass-Combined Heat and Power (CHP). Amending legislation to the terms of support for biomass CHP

01 August 2016 - Changes for solid biomass CHP installations were introduced. A summary of these changes can be found in our Changes to the Non-Domestic RHI regulations (August 2016) publication.

24 March 2016 - Changes to indexation for new participants and minor amendments on suitability requirements were introduced. A summary of these changes can be found in our Changes to the Non-Domestic RHI regulations (March 2016 ) publication.

05 October 2015 – Changes were introduced stating that existing and new biomass, biogas and biomethane participants must use fuel that meets specific sustainability requirements. A summary of these changes can be found in our Changes to the Non-Domestic RHI regulations (October 2015) publication.

13 July 2015 – Changes were introduced, including biomethane degression and rejection provisions. A summary of these changes can be found in our Changes to the Non-Domestic RHI regulations (July 2015) publication.