{
  "url": "https://openlegislation.uk/eu-regulation-2017-1938/annex-V/division-2",
  "json_url": "https://openlegislation.uk/eu-regulation-2017-1938/annex-V/division-2.json",
  "legislation": "eur/2017/1938",
  "legislation_title": "Regulation (EU) 2017/1938 of the European Parliament and of the Council of 25 October 2017 concerning measures to safeguard the security of gas supply and repealing Regulation (EU) No 994/2010 (Text with EEA relevance)",
  "legislation_url": "https://openlegislation.uk/eu-regulation-2017-1938",
  "path": "annex/V/division/2",
  "kind": "division",
  "number": "2",
  "heading": "Infrastructure standard (Article 5)",
  "text": "Describe how the infrastructure standard is complied with, including the main values used for the N – 1 formula and alternative options for its compliance (with directly connected Member States, demand-side measures) and the existing bidirectional capacities, as follows:\n(a)N – 1 formula\n(i)the identification of the single largest gas infrastructure;\n(ii)the calculation of the N – 1 formula for the United Kingdom;\n(iii)a description of the values used for all elements in the N – 1 formula, including intermediate values used for their calculation (e.g. for EPm indicate the capacity of all entry points considered under this parameter);\n(iv)an indication of the methodologies used, if any, for the calculation of parameters in the N – 1 formula (e.g. Dmax) (use annexes for detailed explanations);\n(v)an explanation of the results of the calculation of the N – 1 formula considering the level of storages at 30 % and 100 % of the maximum working volume;\n(vi)an explanation of the main results of the simulation of the N – 1 formula using a hydraulic model;\n(vii)if so decided by the Secretary of State, a calculation of the N – 1 formula using demand-side measures:\ncalculation of the N – 1 formula in accordance with point 2 of Annex II,\ndescription of the values used for all elements in the N – 1 formula, including intermediate figures used for the calculation (if different to the figures described under point 2(a)(iii)),\nindicate the methodologies used, if any, for the calculation of parameters in the N – 1 formula (e.g. Dmax) (use annexes for detailed explanations),\nexplain the market-based demand-side measures adopted/to be adopted to compensate a disruption of gas supply and its expected impact (Deff);\n(viii)...\n(b)bi-directional capacity\n(i)indicate the interconnection points equipped with bidirectional capacity and the maximal capacity of bi-directional flows;\n(ii)indicate the arrangements governing the use of the reverse flow capacity (e.g. interruptible capacity);\n(iii)indicate interconnection points where an exemption has been granted in accordance with Article 5(4), the duration of the exemption and the grounds on which it was granted.",
  "extent": "E+W+S+N.I.",
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "F",
      "label": "F1",
      "text": "Words in Annex 5 point 2 substituted (31.12.2020) by The Gas (Security of Supply and Network Codes) (Amendment) (EU Exit) Regulations 2019 (S.I. 2019/531), reg. 1(2), Sch. 1 para. 22(4)(a); 2020 c. 1, Sch. 5 para. 1(1)"
    },
    {
      "type": "F",
      "label": "F2",
      "text": "Words in Annex 5 point 2 substituted (31.12.2020) by The Gas (Security of Supply and Network Codes) (Amendment) (EU Exit) Regulations 2019 (S.I. 2019/531), reg. 1(2), Sch. 1 para. 22(4)(b); 2020 c. 1, Sch. 5 para. 1(1)"
    },
    {
      "type": "F",
      "label": "F3",
      "text": "Annex 5 point 2(a)(viii) omitted (31.12.2020) by virtue of The Gas (Security of Supply and Network Codes) (Amendment) (EU Exit) Regulations 2019 (S.I. 2019/531), reg. 1(2), Sch. 1 para. 22(4)(c); 2020 c. 1, Sch. 5 para. 1(1)"
    }
  ],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/eur/2017/1938/annex/V/division/2",
    "retrieved_at": "2026-11-01T14:44:30.374784+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."
}