Renewable Heat Incentive for non-domestic customers

The non-domestic Renewable Heat Incentive (RHI) scheme closed to new applications on 29 February 2016.

Tariffs for installations accredited before 18 November 2015

The tables below detail the supported technologies and the tariffs at 1 April 2015 for installations accredited before 18 November 2015. These tariffs have been adjusted in line with RPI, with the resulting figure being rounded, in line with regulations, to the nearest tenth of a penny, with any twentieth of a penny being rounded upwards.

Biogas combustion and biomethane injection

This applies to installations using biomethane injection and biogas combustion, except from landfill gas.

Size range NI RHI tariff (pence per kWh) Length of tariff
Biomethane all scales, biogas combustion less than 200kWth 3.3 20 years

Biomass boilers

This applies to installations using solid biomass; municipal solid waste (including combined heat and power).

Size range NI RHI tariff (pence per kWh) Length of tariff
Less than 20kWth 6.8 20 years
20kWth and above, up to but not including 100kWth 6.5 20 years
100kWth and above, up to but not including 1000kWth 1.5 20 years

Ground source heat pump

This applies to installations using water source heat pumps and deep geothermal.

Size range NI RHI tariff (pence per kWh) Length of tariff
Less than 20kWth 9.1 20 years
20kWth and above, up to but not including 100kWth 4.7 20 years
100kWth and above 1.3 20 years

Solar thermal

This applies to installations using solar thermal panels.

Size range NI RHI tariff (pence per kWh) Length of tariff
Below 200kWth 9.2 20 years

Tariffs for installations accredited on or after 18 November 2015

Changes were made to the scheme on 18 November 2015, including changes to the biomass tariff structures and other tariffs. These may affect your application if you submitted it on or after that date. 

The tables below detail the supported technologies and the tariffs for installations accredited on or after 18 November 2015. These tariffs will be adjusted in line with RPI, with the resulting figure being rounded in line with regulations to the nearest tenth of a penny, with any twentieth of a penny being rounded upwards.

For small and medium biomass tariffs ‘Tier 1’ applies to the initial heat generated by an accredited RHI installation running at its installation capacity for 1,314 hours in any 12 month period from either the accreditation date or the anniversary of the accreditation date. ‘Tier 2’ applies to further heat generated over that specified for ‘Tier 1’ up to a maximum of 400,000kWhth.  Any further heat generated over 400,000kWhth is not eligible for RHI payments.

Tariff name Sources of energy or technology Installation capacity Tariff
Pence/kWh
Small biomass Solid biomass including solid biomass contained in municipal solid waste Less than 20kWth Tier 1: 6.8
Tier 2: 1.5
Medium biomass As above 20kWth and above, up to but not including, 200kWth Tier 1: 6.5
Tier 2: 1.5
Large biomass As above 200kWth and above, up to but not including, 1000kWth 1.5
Combined heat and power Biomass combined heat and power New systems, all sizes

Conversion from fossil fuels, all sizes

3.5

1.7

Small heat pumps Ground source heat pump, water source heat pump, deep geothermal Less than 20kWth 9.1
Medium heat pumps As above 20kWth and above, up to but not including, 100kWth 4.7
Large heat pumps As above 100kWth and above 1.3
All solar collectors Solar collectors Below 200kWth 9.2
Biomethane injection and biogas combustion Biomethane injection and biogas combustion All biomethane injection and biogas combustion below 200kWth 3.3

Further information

The non-domestic scheme is administered by the energy regulator for Great Britain, Ofgem. 

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