Tariff level tables

See the tariff levels for each type and size of system

The main benefit of the RHI is the generation tariff, which is paid for every kilowatt-hour of energy produced. The level of payment varies depending on the technology and the system size, as further described here.

Non-residential Installations

The following tariffs apply from 1st April 2013 to 31st March 2014 (including adjustments for RPI):

Tariff name	Eligible technology	Eligible sizes	Tariff rate (p/kWh)
Small biomass	Solid biomass; Municipal Solid Waste (incl. CHP)	Less then 200 kWth	Tier 1:   8.6
			Tier 2:   2.2
Medium biomass		200 kWth and above; less than 1000 kWth	Tier 1:   5.3
			Tier 2:   2.2
Large biomass		1000 kWth and above	1.0 [A]
Small ground source	Ground-source heat pumps; Water-source heat pumps; Deep geothermal	Less than 100 kWth	4.8 [A]
Large ground source		100 kWth and above	3.5 [A]
Solar thermal	Solar thermal	Less than 200 kWth	9.2 [A]
Biomethane	Biomethane injection & biogas combustion, except landfill gas	Biomethane all scales; biogas  < 200 kWth	7.3

^[A] The government has proposed new tariffs for these bands as detailed here.

Details on how the ‘tiers’ operate are given here.

The above tariffs are those that will apply at the start of the scheme, so have had one year’s RPI uplift added to the tariff levels originally published in the initial design document.

All these tariffs are fixed for a duration of 20 years.

Residential installations

The tariffs proposed in the government’s July 2013 proposals are:

Domestic scheme proposed tariffs

Technology	Tariff p/kWh
Air source heat pumps	7.3
Biomass boilers	12.2
Ground source heat pumps	18.8
Solar hot water	19.2 [a]

^[a] Maybe higher, up to 21.7

There are also grants available before the tariffs come into effect under the Premium Payment.