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Ashwell Biomass - your RHI partner

Ashwell Biomass is one of the UK’s leading biomass boiler manufacturers and installers of biomass heating and hot water solutions. We work with you to design, manufacture, install and service your RHI qualifying installation.
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Renewable Heat Incentive (RHI) Scheme

Increasing renewable heat is key to the UK meeting its renewable energy targets, reducing carbon emissions, ensuring energy security and helping to build a low carbon economy.

The introduction of the Renewable Heat Incentive (RHI) scheme by the UK Government is intended to significantly increase the proportion of heat that is generated from renewable sources. By encouraging a switch from fossil fuels, this will contribute towards the UK’s wider carbon reduction goals. The RHI is intended to compensate for the higher cost of renewable heating technologies, which will help make renewable heating an option for everyone.

A summary of the main points applicable to biomass boiler installations are outlined below. For the full Renewable Heat Incentive (RHI) publication, please click here.
Full RHI document Ongoing RHI obligations

Eligible biomass installations

In order to be eligible to claim the RHI, equipment must be:
  • A new installation;
  • First commissioned on or after the 15 July 2009;
  • Generating heat for an eligible use (see below); and
  • Metered output.

Eligible uses of heat

The RHI will only support ‘useful’ heat. This is defined as follows:
  • Heat supplied to meet a justifiable heating requirement;
  • Load should be an existing or new heating requirement i.e. not created artificially, purely to claim the RHI; and
  • Acceptable uses are space, water and process heating


RHI payments will:
  • only be made to the ‘owner’ of the biomass installation through an application made directly to Ofgem;
  • be calculated by multiplying the appropriate tariff by the amount of eligible heat; and
  • be made over a period of 20 years on a quarterly basis following the submission of the required periodic information
Want to find out more about the Renewable Heat Incentive (RHI) scheme? Contact Ashwell Biomass today
0116 260 4050
Email us
Ashwell Biomass Ltd, Unit 12, 35 Pinfold Road, Thurmaston, Leicester LE4 8AT
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