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The Renewable Heat Incentive

The renewable heat incentive (RHI) is the world’s first long term financial support programme for renewable heat. The government launched the RHI in November 2011 and provides payments to industry, businesses and public sector organisations.

The RHI is similar to the Feed-In-Tariff for renewable energy and users of biomass boilers, ground source heat pumps, solar thermal panels and biomethane can claim for every kilowatt hour of renewable heat used.

Finance and grants for biomass

At the moment the RHI is only available for commercial customers but domestic users can apply for the Renewable Heat Premium Payment or RHPP which includes a one off grant of £2,000, for example, towards the cost of a biomass boiler.

From spring 2014 the Renewable Heat Incentive will be extended to domestic users even if they have already signed up to the RHPP.

Until then, customers can find details of the Renewable Heat Premium Payment Scheme here.


The commercial RHI will remain open until 2020 and new users will receive payments for a 20 years. Users will remain accredited to a certain level of tariff once they are assigned to it, the tariffs are index linked for the full 20 years.

The Domestic RHI scheme will also remain open until 2010 but the payments will be higher, the scheme will run for 7 years.


Commercial users of any of the eligible technology (see table below) which is delivered by hot water and it at a qualifying scale, can claim the RHI tariff. For biomass, all scales are eligible. If two or more domestic properties are heated by a singular boiler, this is classed as a commercial district heat network, and the owner of the boiler will be able to claim RHI payments.

This heat load should be an existing or new heating requirement, not created purely to receive the RHI.

The heat must be supplied to meet an economically justifiable heating requirement.
Acceptable uses for heat are space, water and process heating where the heat is used in enclosed structures.

Boilers under 45kW have to be registered with the Microgeneration Certification Scheme
Only new equipment will qualify.

Ongoing maintenance criteria must be adhered to, we will ensure you are fully aware of the specific details.

Biomass boilers must meet specific air quality requirements (Enviko supplied boilers already do).

Tariff Levels

The tariff table below shows the tariffs that will be applicable for all technologies from 1st of January 2014 and we will publish the next quarterly tariff table by 15 April 2014.

Small Commercial Biomass Solid Biomass including solid Biomass in municipal solid waste (Including CHP)VariableLarge Less than 200kWth 8.6 (tier 1)
2.2 (tier 2)
Medium Commercial Biomass 200 kWth and above; less than 1,000 kWth 5.0 (tier 1)
2.1 (tier 2)
Large Commercial Biomass 1,000 kWth and above 1.0
Small Commercial Heat pumps Ground Source Heap Pumps; Water Source Heat Pumps; deep geothermal 100 kWth and above Less than 100 kwth 4.8
Large commercial heat pumps 100 kWth and above 3.5
All solar collectors Solar Thermal Collectors Less than 200 kWth and above 9.2
Biomethane and biogas combustion Biomethane injection and biogas combustion, except from landfill gas Biomethane all scales, biogas, combustion, except from landfill gas



More information...

For more information on this or any other Enviko services or products please call Enviko on (England & Wales) +44 (0)20 8611 2741 or by email.

Biomass boilers are well suited to commercial enviroments which need to meet high heating demands.

Care homes, schools, leisure centres, hotels, farms, sports clubs and domestic homes are examples of buildings which could benefit



Schools, Colleges and Universities

Care homes and hotels

Commercial, for businesses

Private Sector, Residential, new builds, private dwellings etc.





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WindHager Biocabins

The Renewable Heat Incentive


Empowering UK business to harness the renewable energy solutions

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Enviko - renewable energy consultancy Located in Kingston, KT1 3GZ. Phone: +44 (0)20 8611 2741.