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The Non-Domestic RHI


Tariff Name

Eligible Technology

Eligible Sizes



Small commercial biomass Solid biomass including solid biomass contained in waste Less than 200 kWth
Tier 1
Less than 200 kWth
Tier 2
4.40 20
1.17 20
Medium commercial biomass 200 kWth and above & less than 1MWth
Tier 1
200 kWth and above & less than 1MWth
Tier 2
5.18 20
2.24 20
Large commercial biomass 1MWth and above 2.03 20
Solid biomass CHP systems (commissioned on or after 4 December 2013) Solid biomass CHP systems all capacities 4.17 20
Water/Ground-source heat pumps Ground-source heat pumps & Water-source heat pumps all capacities Tier 1 8.84 20
Tier 2 2.64 20
Air-source heat pumps (commissioned on or after 4 December 2013) Air-source heat pumps all capacities 2.54 20

What is it?

The Domestic RHI (Renewable Heat Incentive) is a Government financial incentive to encourage a switch to renewable heating systems.

If you join and comply with the scheme rules, you’ll receive subsidy payable for 20 years. It’s a way to help the UK reduce its carbon emissions and meet the EU renewable energy targets.

Who is it for?

The Non-domestic RHI is open to:

  • Industry
  • Commerce
  • Public sector
  • Non-profit organisations
  • District heating systems

all with eligible installations.

Which heating systems does this apply to?

  • Biomass boilers and pellet stoves
  • Air Source Heat Pumps
  • Ground Source Heat Pumps
  • Solar Thermal panels (flat plate and evacuated tube)

What is the eligibility criteria?

This is quite complicated so click here to be taken to the official ofgem page which discusses these criterias clearly.

How do I apply?

Again this is quite legthy and complex so click here to go to the relevant ofgem page where relevent help guides and information is easily available.

It is worth noting that installations from 15 July 2009 are eligible to apply.

Also remember GrEnergy is here to help and guide you at every stage of the process.