# The Renewable Heat Incentive Scheme (Closure) Regulations (Northern Ireland) 2026, Schedule 1: Tariffs


Table 1: installations where the tariff has no tiers
Tariff name
Sources of energy of technology
Installation capacity
Tariff pence/kWh
Large biomass
Solid biomass
200kWth and above, up to but not including 1000kWth
2.3
Small heat pumps
Ground source heat pump, water source heat pump, deep geothermal
Less than 20kWth
14.8
Medium heat pumps
Ground source heat pump, water source heat pump, deep geothermal
20kWth and above, up to but not including 100kWth
7.5
All solar collectors
Solar collectors
Below 200kWth
15.1
Table 2: installations where the tariff has tiers
Tariff name
Sources of energy of technology
Installation capacity
Tariff Pence/kWh
Small biomass
Solid biomass
Less than 20kWth
Tier 1: 14.3
Tier 2: 5
Medium biomass (lower capacity)
Solid biomass
20kWth and above, up to but not including 100kWth
Tier 1: 6.3
Tier 2: 1.8
Medium biomass
(upper capacity)
Solid biomass
100kWth and above, up to but not including 200kWth
Tier 1: 4.3
Tier 2: 1.6

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Source: https://www.legislation.gov.uk/nidsr/2026/9780338026613/schedule/1 (the official version)
Page: https://openlegislation.uk/draft-renewable-heat-incentive-scheme-closure-regulations-northern-ireland-2026/schedule-1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.