Renewable Heat Incentive (RHI) for biomass, heat pumps and solar thermal systems


The Renewable Heat Incentive (RHI)

The Renewable Heat Incentive (RHI) is a government initiative which aims to encourage more people to use renewable energy, but recognises these are more expensive than traditional forms of prodicing energy. As such it offers financial support for renewable heating technologies through a series of payments made to you. Qualifying technologies are Solar Thermal, Biomass solutions and Air & Ground Source Heat Pumps and others. (Solar Photovoltaic, (PV) systems do not qualify for RHI, but they do qualify for FIT payments).

In simple terms, the RHI means you will receive payments for generating heat, and this covers the majority if not all of the costs on installing the technology/ies . The domestic RHI payments are (tax free), paid quartly over 7 years. The non-domestic RHI pays quartely for 20 years (both are indexed linked with CPI so the rate should increase year on year). Renew Green Energy are happy to assist and just click here to get in touch

For domestic RHI information click here for more information & current rates , and here for non domestic uses

The non domestic scheme covers single domestic dwellings and owner-occupiers, private landlords, registered providers of social housing, third party owners of heating systems and self-builders. An owner of more than one roperty may also be eligible for more than one non domestic RHI application but this is worth checking with OFGEM as criteria will vary. Some of these may also qualify for the non domestic RHI. The non domestic RHI is a little more complex as it based on meter readings submitted which is part of the intial energy calculation needed for the legitimate use of the energy from the solution installed.

How is domestic RHI calculated?

This is based on the total energy demand on the Energy Performance Certificate (EPC), with a cap on the total energy deemed payable. ASHP is 20,000kWhrs, Biomass 25,000 kHrs, and GSHPs 30,000 kWhrs, Solar thermal does not have a cap. (ie if the EPC for the property states an energy demand of 50,000kWhrs, you will only be paid the capped amount (eg for GSHP, 30,000 kWhrs)

How can I calculate my RHI?

How RHI is calculated can be found here click here and if you would like to carry out a quick check then the DECC calculator is quite a handy tool (click here)

How do I know if I am eligible for the RHI?

We will help you through the process. For domestic installations, the installer must be Microgeneration Certification Scheme (MCS) accredited which Renew Green Energy are. This is necessary to ensure that only quality solutions are fitted from approved companies as poor installations can quickly undermine the sustainability of the renewable industries and it certainly won’t help consumer confidence. This way you are assured of quality.For non domestic RHI, there is a series of supporting documentions such as bills, invoices, proof of trading etc that will need to be used when making an application. We use a 3rd party to manage these applications on your behalf, and will be able to determine if your system would meet the criteria for payments.


All non domestic applicants are required to complete an Energy Perfomance Certificate (EPC) before applying, and before we commission the system, to ensure they meet minimum energy efficiency requirements.

Any RHI or FIT estimates are based upon the best available information but is given as guidance only and should not be considered as a guarantee. Please note that tariffs reduce over time so you are awalys best to check.

Renew Green Energy are happy to assist and just click here to get in touch

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