The worlds first domestic renewable heat incentive is launched 9th April 2014.

Click to calculate your RHI

Presentation Guide

Department of energy and climate change confirm RHI tariff rates for Heat Pumps & Biomass

see our analysis on how much you can earn from installing a heat pump or biomass boiler

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Tariff prices used

Oil =65 pence per litre

Boiler Efficiency 90%

Electricity = 13 pence per kWh

Property has average insulation, therefore  55 W/m2

Domestic RHI tariff prices (source DECC Domestic Renewable Heat Incentive, published 12th July 2013)

Ground Source Heat Pump = 18.8 pence per kWh (Renewable heat) Now increased from 1st April 2015 = 19.10 p/kWh 

Air Source Heat Pump = 7.3 pence per kWh (Renewable heat) Now increased from 1st April 2015 = 7.42 p/kWh

Biomass = 12.2 pence per kWh Now decreased from 1st April 2015 = 8.93 p/kWh

For update regarding the domestic RHI tariff rates please see link below.

For calculating renewable heat eligible for heat pumps the following formulae has been used

Eligible heat demand = Total heat demand x (1 - 1/SPF)

SPF = Seasonal Performance Factor

Note: The Domestic RHI has a duration of 7 years.


RDC Energy Ltd, 32 Oxlease, Witney, Oxfordshire, OX28 3QX              Company registration number 07336992