NDRHI Closure

The Non-Domestic Renewable Heat Incentive Scheme (NDRHI) in Great Britain is closing to new applicants at the end of midnight on 31 March 2021. The Department for Business Energy and Industrial Strategy (BEIS) has consulted on changes and published decisions in their government response documents which are available on the BEIS website.

Alongside the main closure of the scheme, BEIS propose to introduce a short window for ‘extension applications’ for non-tariff guarantee applications. Applicants can gain entry to the scheme after its closure for a specified amount of time if they are eligible to apply for an extension application.

Ofgem has been working closely with BEIS such that we are able to publish draft versions of new and existing guidance documents for comment prior to the changes taking effect. These draft guidance documents are in line with the Government’s plans for scheme changes and are based on the statutory instrument that has been laid in parliament on 25 January 2021. Details of the eligibility requirements for the extension applications as well as other changes taking effect at the closure of the scheme will be set out in the guidance documents we publish on this page.

Until these legislative changes take effect, the current scheme requirements can be found as normal through the guidance documents available through the existing pages on this website.

Key upcoming closure dates

1 March 2021 Window opens for making an ‘extension application’ for non-tariff guarantee applications.
31 March 2021 Window closes for making an ‘extension application’ for non-tariff guarantee applications.
31 March 2021 The NDRHI scheme closes to all new applicants.

For information about key dates for tariff guarantee applications, see our existing Guide to Tariff Guarantees on our Main Guidance page.

Engagement on the changes

Ofgem will publish guidance documents in draft form for comment. This will include a new document that sets out the requirements for extension applications as well as amended versions of existing guidance documents relevant to the closure of the scheme.

Our customer service team will not be able to answer questions on these draft documents or the closure requirements in advance of the legislative changes taking effect. Each published document will set out the process for stakeholders to engage with us including what we are seeking comment upon, where to send responses to and the deadline for doing so.


Ofgem hosted three online stakeholder events during February and March 2021. The events were an opportunity to talk stakeholders through the NDRHI scheme changes, to gather initial feedback on our proposed administrative approach and accompanying guidance, and to answer any questions.

Ofgem would like to thank anyone who attended or contributed to the NDRHI Closure Events.

Publications and updates

  • Published: 4th May 2021
  • Guidance
  • 0 Associated documents
Information about Extension Application and budgets.

  • Published: 31st Mar 2021
  • Decisions
  • 1 Associated documents
This document sets out the changes to procedures accompanying the closure of the Non- Domestic Renewable Heat Incentive (NDRHI) scheme from midnight at the end of 31 March 2021.

  • Published: 29th Mar 2021
  • Guidance
  • 1 Associated documents
In the event of an IT system issue which prevents participants from submitting an application on the RHI Register, this document can be used to submit an application for the Non-Domestic RHI.

  • Published: 26th Feb 2021
  • Decisions
  • 1 Associated documents
See our final guidance document published on 26 February 2021 ahead of the legislative changes taking effect and the opening of the one-month window for extension applications to be submitted.

  • Published: 26th Feb 2021
  • Open letters and correspondence
  • 2 Associated documents
This open letter explains Ofgem’s proposed administrative approach to dealing with RHI accreditation applications where the applicant is operating their plant under the ‘Medium combustion plant (MCP) section 5.1 Part B new permits: RPS 244’ and RPS 243...

  • Published: 8th Feb 2021
  • Closed: 5th Mar 2021
  • Consultations and responses
  • 2 Associated documents
This is the final guidance document for the Non Domestic RHI Scheme closure and our response to stakeholder comments on our draft guidance published 8 February 2021.

  • Published: 27th Jan 2021
  • Closed: 17th Feb 2021
  • Consultations and responses
  • 4 Associated documents
This is the final guidance document for Non-Domestic RHI: Non-Tariff Guarantee Extension Applications and our response to stakeholder comments on our draft guidance, published 27 January 2021.