{
  "url": "https://openlegislation.uk/eu-regulation-2017-2400/annex-IX/division-3/division-3.3",
  "json_url": "https://openlegislation.uk/eu-regulation-2017-2400/annex-IX/division-3/division-3.3.json",
  "legislation": "eur/2017/2400",
  "legislation_title": "Commission Regulation (EU) 2017/2400 of 12 December 2017 implementing Regulation (EC) No 595/2009 of the European Parliament and of the Council as regards the determination of the CO2 emissions and fuel consumption of heavy-duty vehicles and amending Directive 2007/46/EC of the European Parliament and of the Council and Commission Regulation (EU) No 582/2011 (Text with EEA relevance)",
  "legislation_url": "https://openlegislation.uk/eu-regulation-2017-2400",
  "path": "annex/IX/division/3/division/3.3",
  "kind": "division",
  "number": "3.3",
  "heading": "Electric system",
  "text": "For the electric system power the standard values [W] as shown in Table 5 shall be used depending on the application and technology in combination with the alternator efficiencies:\nTable 5\nElectrical power demand of electric system\nTechnologies influencing electric power consumption\nElectric power consumption [W]\nLong haul\nRegional delivery\nUrban delivery\nMunicipal utility\nConstruction\nStandard technology electric power [W]\n1 200\n1 000\n1 000\n1 000\n1 000\nLED main front headlights\n– 50\n– 50\n– 50\n– 50\n– 50\nTo derive the mechanical power, an alternator technology dependent efficiency factor as shown in Table 6 shall be applied.\nTable 6\nAlternator efficiency factor\nAlternator (power conversion) technologiesGeneric efficiency values for specific technologies\nEfficiency ηalt\nLong haul\nRegional delivery\nUrban delivery\nMunicipal utility\nConstruction\nStandard alternator\n0,7\n0,7\n0,7\n0,7\n0,7\nIf the technology used in the vehicle is not listed, the technology ‘ standard alternator ’ shall be considered in the simulation tool.\nThe final power demand is calculated by:\nP tot = P el η alt where:\nPtot Total power demand [W]\nPel Electrical power demand [W]\nηalt Alternator efficiency [-]",
  "extent": "E+W+S+N.I.",
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "F",
      "label": "F1",
      "text": "Substituted by Commission Regulation (EU) 2019/318 of 19 February 2019 amending Regulation (EU) 2017/2400 and Directive 2007/46/EC of the European Parliament and of the Council as regards the determination of the CO2 emissions and fuel consumption of heavy-duty vehicles (Text with EEA relevance)."
    }
  ],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/eur/2017/2400/annex/IX/division/3/division/3.3",
    "retrieved_at": "2026-11-01T14:44:20.922900+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."
}