Domestic Renewable Heat Incentive Scheme and Renewable Heat Incentive Scheme (Amendment) Regulations 2021


These regulations will provide a 12-month accreditation extension for certain installations under the non-domestic renewable heat incentive until 31 March 2022.

The domestic scheme will close to new applicants from 31 March 2022.




The Domestic Renewable Heat Incentive Scheme and Renewable Heat Incentive Scheme (Amendment) Regulations 2021 will amend the Renewable Heat Incentive Scheme Regulations 2018 and Domestic Renewable Heat Incentive Scheme Regulations 2014.

The 2021 regulations come into force on 1 March 2021, unless otherwise stated below.

What will change?

Amendments to the Domestic Renewable Heat Incentive (dRHI) Scheme

A revised code of practice (version N of the Home Insulation & Energy Systems Quality Assured Contractors Scheme Code of Practice) will apply to investors from 1 April 2021.

Where plant was commissioned on or after 1 March 2019, the dRHI accreditation applications may be made until Midnight on 31 March 2022. Additionally, a second application may be submitted for plants rejected before 1 April 2021, where this was not made within 12 months of initial commissioning.

Expenditure limits for dRHI tariffs from 31 January 2021 are revised.

Amendments to the Non-domestic Renewable Heat Incentive (RHI) Scheme

Applications and Scheme Closure

The RHI scheme closes to applications from Midnight on 31 March 2021.

Where significant investment has been made on plant on or before 17 August 2020 and this is not expected to be commissioned before 31 March 2021, the closure date is extended to Midnight on 31 March 2022. To benefit from this extension, it must be applied for between 1 and 31 March 2021.

Grounds to decline accreditation applications are also updated.

Sustainability Criteria

Biogas produced or used may only qualify for the RHI where the fossil fuel contribution to the energy content of the biogas does not exceed 10%.

On 1 April 2022, minimum fuel quality requirements will apply to woodfuel. These must be met, alongside the existing land criteria, by solid biomass installations to receive future payments under RHI.

Extended Ground Source Heat Pump or Shared Ground Loop Systems

Amendments enable additional support payments where installation capacities increase for shared ground loop systems. This must be applied for on or before 31 March 2023.



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