The Renewable Heat Incentive

In order to meet energy targets of 15% of all energy consumed by renewable by 2020, the UK Government has introduced the Renewable Heat Incentive (RHI) - the first of its kind in the world. The RHI is split into two categories, Domestic and commercial. For details of the domestic RHI please view our briefing document and for commercial please read the information on this page.

The RHI is a guaranteed 20 year payment, for every unit of heat generated. So not only are you saving money on your heating bills by using a lower cost fuel, you will be paid for being green as well.  

The tariff rates are issued on a quarterly basis and will degress over time as the total volume of heat produced by renewables increses. 

The tariff level is set from the date of registration for the full 20 years, so to benefit from the higher rates call us NOW! 

Tariff Name

Eligible Technology

Eligible Sizes

Tariff level

(p/k Wh)

Small biomass


Solid biomass including solid biomass contained in waste.

Less than 200 kWh

4.40 (tier  1)

1.17 (tier 2)

Medium biomass

200 kWh and above, less than 1,000 kWh

5.18 (tier 1)

2.24 (tier 2)

Large biomass

1,000 kWh and above


Water / Ground-source heat Pumps


Ground source heat pumps & Water-source heat pumps

all capacities Tier 1


Tier 2


Deep geothermal


all capacities


NB: RHI tariffs are index-linked and will be adjusted annually according to the percentage change in the RPI for the previous year.

RHI payments are based on metered heat over a 20 year period. Good optimum performance design and quality equipment are therefore essential to maximise your returns.

From October 2012 all installation accredited must meet emission limits of 30 g/GJ for particulates and 150 g/GJ NOX. All Froling boilers are already compliant without need for filters.

For full information on the RHI please refer to:


How to apply for accreditation and support

Accreditation for the RHI can be obtained from Ofgem, who are responsible for administering the scheme. Ofgem opened their doors for applications on Monday 28th November 2011, for industrial, commercial, public sector, not-for-profit and community installations.

Information on how to apply for support, plus detailed guidance documentation to help you through the process, can be found on the Ofgem website.

Alternatively you can contact their enquiries centre on 0845 200 2122 or by email to  


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