{
  "url": "https://openlegislation.uk/eu-decision-2017-1442/annex/division-4/division-4.1/division-4.1.2/division-2",
  "json_url": "https://openlegislation.uk/eu-decision-2017-1442/annex/division-4/division-4.1/division-4.1.2/division-2.json",
  "legislation": "eudn/2017/1442",
  "legislation_title": "Commission Implementing Decision (EU) 2017/1442 of 31 July 2017 establishing best available techniques (BAT) conclusions, under Directive 2010/75/EU of the European Parliament and of the Council, for large combustion plants (notified under document C(2017) 5225) (Text with EEA relevance)",
  "legislation_url": "https://openlegislation.uk/eu-decision-2017-1442",
  "path": "annex/division/4/division/4.1/division/4.1.2/division/2",
  "kind": "division",
  "number": "BAT 42",
  "heading": "In order to prevent or reduce NOX emissions to air from the combustion of natural gas in gas turbines, BAT is to use one or a combination of the techniques given below.",
  "text": "Technique\nDescription\nApplicability\na.\nAdvanced control system\nSee description in Section 8.3.\nThis technique is often used in combination with other techniques or may be used alone for combustion plants operated < 500 h/yr\nThe applicability to old combustion plants may be constrained by the need to retrofit the combustion system and/or control command system\nb.\nWater/steam addition\nSee description in Section 8.3\nThe applicability may be limited due to water availability\nc.\nDry low-NOX burners (DLN)\nThe applicability may be limited in the case of turbines where a retrofit package is not available or when water/steam addition systems are installed\nd.\nLow-load design concept\nAdaptation of the process control and related equipment to maintain good combustion efficiency when the demand in energy varies, e.g. by improving the inlet airflow control capability or by splitting the combustion process into decoupled combustion stages\nThe applicability may be limited by the gas turbine design\ne.\nLow-NOX burners (LNB)\nSee description in Section 8.3\nGenerally applicable to supplementary firing for heat recovery steam generators (HRSGs) in the case of combined-cycle gas turbine (CCGT) combustion plants\nf.\nSelective catalytic reduction (SCR)\nNot applicable in the case of combustion plants operated < 500 h/yr.\nNot generally applicable to existing combustion plants of < 100 MWth.\nRetrofitting existing combustion plants may be constrained by the availability of sufficient space.\nThere may be technical and economic restrictions for retrofitting existing combustion plants operated between 500 h/yr and 1 500 h/yr",
  "extent": "E+W+S+N.I.",
  "status": null,
  "version": "current",
  "annotations": [],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/eudn/2017/1442/annex/division/4/division/4.1/division/4.1.2/division/2",
    "retrieved_at": "2026-11-01T15:13:23.628050+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."
}