{
  "url": "https://openlegislation.uk/draft-domestic-renewable-heat-incentive-scheme-regulations-2014/regulation-4",
  "json_url": "https://openlegislation.uk/draft-domestic-renewable-heat-incentive-scheme-regulations-2014/regulation-4.json",
  "legislation": "ukdsi/2014/9780111111192",
  "legislation_title": "The Domestic Renewable Heat Incentive Scheme Regulations 2014",
  "legislation_url": "https://openlegislation.uk/draft-domestic-renewable-heat-incentive-scheme-regulations-2014",
  "path": "regulation/4",
  "kind": "regulation",
  "number": "4",
  "heading": "Requirements for biomass plants",
  "text": "(1) Where the plant is a biomass plant, the applicable requirements referred to in regulation 3(a) are that—\n(a) where—\n(i) the plant is designed and installed to use both a permitted source of energy and another source of energy; and\n(ii) that other source of energy is not used solely for ignition,\nparagraph (2) is satisfied in respect of any part of the plant which uses that other source of energy (“the non-biomass part”);\n(b) it provides heating—\n(i) solely to a single eligible property;\n(ii) for an eligible purpose; and\n(iii) if the plant is a biomass stove, it provides heating for that eligible purpose using a liquid-filled heat exchanger enclosed within it;\n(c) it is a condensing plant or meets the requirements set out in—\n(i) at least one of the standards specified in paragraph 1(2) of Schedule 1 which is relevant to the plant and which is applicable on the plant’s first commissioning date, if the plant is a biomass boiler; or\n(ii) the standard specified in paragraph 1(3) of Schedule 1, if the plant is a biomass stove; and\n(d) it has a first commissioning date which is—\n(i) earlier than the relevant date; or\n(ii) on or after the relevant date and an RHI emissions certificate has been issued for the plant, a plant of the same make, model and installation capacity as the plant, or any other plant in the same type-testing range as the plant.\n(2) For the purposes of paragraph (1)(a), this paragraph is satisfied where the non-biomass part—\n(a) comprises an immersion heater for a domestic hot water cylinder or otherwise solely generates heat for the purpose of heating domestic hot water; or\n(b) comprises a supplementary electric heater and a single control system governs the whole plant.\n(3) In paragraph (1), “permitted source of energy” means, if the source of energy is used by—\n(a) a biomass boiler, solid biomass; and\n(b) a biomass stove, wood pellets.\n(4) Schedules 2 and 3 have effect.",
  "extent": null,
  "status": null,
  "version": "current",
  "annotations": [],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/ukdsi/2014/9780111111192/regulation/4",
    "retrieved_at": "2026-10-30T15:13:33.225689+00:00"
  },
  "licence": "Open Government Licence v3.0",
  "licence_url": "https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
  "attribution": "Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives."
}