RHI tariff guarantee applications
- Publication type:
- Transparency document
- Publication date:
- Last updated:
- Scheme name:
- Non-Domestic RHI
RHI Tariff Guarantee Applications
A tariff guarantee allowed applicants to the Non-Domestic Renewable Heat Incentive (RHI) to secure a tariff rate before their installation was commissioned and fully accredited on the RHI. The regulations for tariff guarantees were introduced on 22 May 2018.
Tariff guarantees were available for solid biomass CHP, geothermal and biomethane applications of all sizes, as well as for biomass over 1MWth, biogas over 600kWth and ground source heat pumps and water source heat pumps over 100kWth.
For information about tariff guarantees, see our Guide to Tariff Guarantees on our Main Guidance page.
In order to ensure the RHI scheme stayed within budget there were budget controls for tariff guarantees. The budget allocation for tariff guarantees was set by the Secretary of State and published by the Department for Business, Energy and Industrial Strategy (BEIS).
The scheme closed to remaining applications for accreditation or registration on 31 March 2023. At that point, there were no applications in the budget queue. The table below represents the budget information at closure, and it is no longer subject to change.
The information is the tables should not be used for the purpose of making commercial decisions; it is for information only.