Department of Energy and Climate Change

Renewable Heat Incentive (RHI) Scheme

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Renewable Heat Incentive (RHI) Scheme

On 10 March 2011, the Government announced the details of the Renewable Heat Incentive policy to revolutionise the way heat is generated and used in buildings and homes. This is the first financial support scheme for renewable heat of its kind in the world.

At a time when we can see many problems with relying on a rapidly changing world and continuous reliance on oil and gas, we are proposing to put in place a key foundation stone of our energy future where both carbon reduction and energy security are assured.

The Renewable Heat Incentive(RHI) policy document, sets out the detailed arrangements for this scheme, which will provide long-term financial support to renewable heat installations to encourage the uptake of renewable heat. We are aiming for the regulations which underpin this scheme to be approved by Parliament in summer 2011 and the scheme will be introduced shortly thereafter.

Read the DECC Press Notice (including tariffs) and Chris Huhne's Written Ministerial Statement.

Scheme details

The scheme will be introduced in two phases.

In the first phase, long-term tariff support will be targeted in the non-domestic sectors, at the big heat users - the industrial, business and public sector – which contribute 38% of the UK’s carbon emissions. Under this phase there will also be support of around £15 million for households through the Renewable Heat Premium Payment.

The second phase of the RHI scheme will see households moved to the same form of long-term tariff support offered to the non-domestic sector in the first phase. This transition will be timed to align with the Green Deal which is intended to be introduced in October 2012.

Key aspects of the RHI from 2011
  • Support for a range of technologies and fuel uses including solid and gaseous biomass, solar thermal, ground and water source heat-pumps, on-site biogas, deep geothermal, energy from waste and injection of biomethane into the grid
  • Support for industrial and the commercial sector; the public sector; not-for-profit organisations and communities in England, Scotland and Wales through the RHI tariffs
  • Support for households through the Renewable Heat Premium Payment in the first year of the scheme until the Green Deal is introduced in October when households will become eligible for RHI tariffs
  • The RHI will be funded from general Government spending, not through the previously proposed RHI levy
Key aspects of the non-domestic sector
  • RHI payments to be claimed by, and paid to, the owner of the heat installation or producers of biomethane for injection
  • Payments will be made quarterly over a 20 year period
  • For small and medium-sized installations (up to and including 45kWth), both installers and equipment to be certified under the Microgeneration Certification Scheme (MCS) or equivalent standard, helping to ensure quality assurance and consumer protection
  • Tariff levels have been calculated to bridge the financial gap between the cost of conventional and renewable heat systems, with additional compensation for certain technologies for an element of the non-financial cost
  • Heat output to be metered and the support calculated from the amount of heat used for eligible purposes, multiplied by the tariff level
  • Biomass installations of 1 MWth capacity and above will be required to report quarterly on the sustainability of their biomass feedstock for combustion and where they are used to produce biogas
  • Eligible non-domestic installations completed after 15 July 2009, but before the start of the RHI, will be eligible for support as if they had been installed on the date of its introduction
  • The Gas and Electricity Market Authority (Ofgem) will administer the RHI including: dealing with applications; accrediting installations; making incentive payments to recipients; and monitoring compliance with the rules and conditions of the scheme
Key aspects of the domestic/household sector

Further details will be published shortly on the eligibility criteria for the Renewable Heat Premium, but will include the following principles:

  • a fair spread of technologies across all regions of Great Britain, including biomass, solar thermal and heat pumps (including air source heat pumps)
  • monitoring to enable government, manufacturers, installers and consumers to better understand how to make sure ‘real life’ users get the most out of them, and to inform decisions on the tariff levels and other scheme parameters for phase 2
  • a well insulated home based on its energy performance certificate
  • a householder must agree to monitor and record performance
  • A focus on people living off the gas grid, where fossil fuels like heating oil are both more expensive and have a higher carbon content

Further information on the Renewable Heat Incentive Scheme can be found in the FAQs:

Proposed text for the regulations

Proposed text for the regulations which underpin the RHI has also been published:

We have also published regulations amending Section 100 of the Energy Act 2008, changing the definitions of biomass and biogas to make them more consistent with the intention of the scheme.

We welcome your comments on the RHI regulations which may be forwarded to us either electronically to this e-mail address: or at the following address:

Renewable Heat Incentive Team
Office of Renewable Energy Deployment (ORED)
Department of Energy and Climate Change
4th Floor
3 Whitehall Place

RHI Supporting Analysis

This report examines potential biomass supply in the UK between 2010 and 2030, given current constraints and the potential to address some of these constraints. It examines the supply side issues only and does not provide projections of deployment or demand. It includes analysis of the resources that could potentially be imported to the UK as well as of possible prices for traded feedstocks.

Detail on methodology and each of the Feedstocks.

Detailed results as Excel Spreadsheets.

This report outlines the results of the review undertaken by AEA on behalf of DECC of the technical cost evidence on renewable heat technologies. The review assesses information that became available to DECC over the period February 2010 to November 2010.

This annex presents the key assumptions used in the analysis presented in the Renewable Heat Incentive Impact Assessment. The assumptions are key drivers to various analytical outputs such as resource and subsidy costs, cost-effectiveness assessment, counterfactual costs, technology costs, and the value of CO2 displaced.

This documents sets out the following: how heat meters should be chosen and maintained,how the data gathered could be reported, the cost of meteringand the recommendations on metering of individual RHI technologies.

Historical analysis on the RHI can be found on the National Archives version of the Renewable Heat Incentive (RHI) proposals and NERA/AEA study on the UK Supply Curve for Renewable Heat (2009): Invitation for feedback web pages from a snapshot of the DECC website as at 23 January 2011.

Details of the consultation which ran from February to April 2010 are available on the Consultation on the Renewable Heat Incentive (RHI) web page.

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