Renewable Heat Incentive (RHI)

A Renewable Heat Incentive scheme was introduced in the UK in 2011 and is still running. To date it has supported circa 16,500 installations, with 93% of those being biomass installations. The scheme pays a retrospective pence per kilowatt hour (claimed and paid quarterly) for all metered renewable heat used in accredited installations for a 20 year period.


It is expected that the Irish scheme would operate in a similar manner, providing an incentive payment rewarding users for each unit of renewable heat produced and used, based on a unit rate of payment (tariff) applied to metered renewable heat output. The scheme is being set up by the Department of Communications, Climate Action & Environment (DCCAE) and will be administered by the Sustainable Energy Authority of Ireland (SEAI).


The most recent DCCAE consultation document proposed the following:

  • Technologies eligible for support to include:
    • Biomass boiler
    • Biomass combined heat and power (CHP)
    • Biomass direct air heating
    • Ground-source heat pump
    • Air-source heat pump
    • Water-source heat pump
    • Deep geothermal
    • Anaerobic digestion (AD) CHP
    • Anaerobic digestion (AD) boiler
    • Biomethane grid injection
    • Energy-from-Waste
    • Solar thermal
  • Period of support to be 15 years

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