The Renewable Heat Incentive

The Renewable Heat Incentive (RHI) is the world’s first long-term financial support programme for renewable heat. The RHI pays participants of the scheme that generate and use renewable energy to heat their buildings. By increasing the generation of heat from renewable energy sources (instead of fossil fuels), the RHI helps the UK reduce greenhouse gas emissions and meet targets for reducing the effects of climate change. There are two parts to the RHI, Domestic RHI and Non-domestic RHI.


The domestic RHI scheme opened on 9 April 2014, it is a financial incentive scheme designed to encourage uptake of renewable heating among domestic consumers. The domestic RHI is targeted at, but not limited to, homes off the gas grid. Those without mains gas have the most potential to save on fuel bills and decrease carbon emissions.

The scheme will cover single domestic dwellings and will be open to homeowners, private landlords, social landlords and self-builders. It will not be open to new build properties other than self-build.

The domestic RHI will pay the following tariffs per unit of heat generated for seven years:

Air-source heat pumps

Ground and water-source heat pumps

Biomass-only boilers and biomass pellet stoves with integrated boilers

Solar thermal panels (flat plate and evacuated tube for hot water only)
19.2 p/kWh


The Non-Domestic Renewable Heat Incentive (RHI) is a Government environmental programme that provides financial incentives to increase the uptake of renewable heat. For the non-domestic sector broadly speaking it provides a subsidy, payable for 20 years, to eligible, non-domestic renewable heat generators and producers of biomethane for injection based in Great Britain.

The Non-Domestic RHI provides financial support for renewable heat technologies for the lifetime of the installation (for 20 years). We make payments on a quarterly basis. Once you are accredited, a tariff level will be assigned to your installation based on its technology (eg biomass, heat pump, solar) and size. Payments will be made based on the actual heat output of the system.

Payments begin to accrue from the date of accreditation of the installation. The date is confirmed in the accreditation confirmation letter emailed to successful applicants.

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