Domestic RHI cap deadline

The UK government has published the Domestic Renewable Heat Incentive Scheme (Amendment) Regulations 2017

Support Levels


  1. The tariff for new ASHPs will be increased from 7.4p to 10.02p/kWh
  2. The tariff for new GSHPs will be increased from 19.1p to 19.55p/kWh
  3. The tariff for new biomass installations will be increased from 4.21p to 6.44p/kWh
  4. The tariff for solar thermal will remain at 19.74p/kWh

Heat Caps

Heat demand caps will be introduced from Spring 2017 (the published date is 1 April), to limit the level of annual heat demand in respect of which any household can receive support. The limits are as follows:

  1. ASHPs – 20,000kWh/pa
  2. Biomass – 25,000kWh/pa
  3. GSHPs – 30,000kWh/pa

However, this will not disqualify properties with higher heat demands from applying to the scheme, but they will only receive payment on heat up to the relevant cap. There will be no cap on solar thermal.