{
  "url": "https://openlegislation.uk/electricity-capacity-regulations-2014/regulation-50",
  "json_url": "https://openlegislation.uk/electricity-capacity-regulations-2014/regulation-50.json",
  "legislation": "uksi/2014/2043",
  "legislation_title": "The Electricity Capacity Regulations 2014",
  "legislation_url": "https://openlegislation.uk/electricity-capacity-regulations-2014",
  "path": "regulation/50",
  "kind": "regulation",
  "number": "50",
  "heading": "Reducing capacity payments: failure to demonstrate satisfactory performance",
  "text": "(1) This regulation applies in relation to a capacity committed CMU (“CMU i”) and a delivery year (“year X”) if—\n(a) a satisfactory performance requirement applies in respect of CMU i in year X; and\n(b) the requirement has not been met by 30th April in year X.\n(2) If, by the end of a relevant month, the capacity provider in respect of CMU i (“C”) has not complied with the satisfactory performance requirement, no monthly capacity payment is to be paid in respect of CMU i for that month.\n(2A) If C complies with the satisfactory performance requirement during May in year X, no monthly capacity payment is to be paid in respect of CMU i for that month.\n(3) If C complies with the satisfactory performance requirement during a relevant month other than May, the Settlement Body must ensure that the credit which would otherwise be payable to C in respect of the monthly capacity payment for CMU i for that month is reduced by the proportion AB, where—\n(a) A is the number of days in the relevant month before the day on which C complies with the satisfactory performance requirement; and\n(b) B is the number of days in the relevant month.\n(4) If C has not complied with the satisfactory performance requirement by the end of year X—\n(a) C must repay to the Settlement Body all capacity payments made in respect of CMU i and year X less the total amount of any capacity provider penalty charges that C has paid in respect of CMU i and year X; and\n(b) the Settlement Body must, as soon as reasonably practicable after the end of year X, issue an invoice to C for the amount due under sub-paragraph (a).\n(5) The Settlement Body must—\n(a) if paragraph (2) or paragraph (2A) applies, give a notice to C which states that no monthly capacity payment is to be paid in respect of CMU i for the relevant month, and states the reason;\n(b) if paragraph (3) applies, ensure that the credit note issued to C for the relevant month states the amount by which the credit is reduced, and states the reason;\n(c) if paragraph (4) applies, ensure that the invoice issued to C under paragraph (4)(b) states the reason for the issue of the invoice.\n(6) In this regulation—\n“extended performance” has the meaning given in the Rules;\n“relevant month” means May, June, July, August or September in year X;\n“satisfactory performance day” has the meaning given in the Rules;\n“satisfactory performance requirement” means a requirement in capacity market rules for a capacity provider to demonstrate satisfactory performance days or extend performance during a satisfactory performance day in respect of a capacity committed CMU.",
  "extent": null,
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "F",
      "label": "F1",
      "text": "Reg. 50(2A) inserted (24.3.2015) by The Electricity Capacity (Amendment) Regulations 2015 (S.I. 2015/875), reg. 1(2), Sch. 1 para. 17(a)"
    },
    {
      "type": "F",
      "label": "F2",
      "text": "Words in reg. 50(3) inserted (24.3.2015) by The Electricity Capacity (Amendment) Regulations 2015 (S.I. 2015/875), reg. 1(2), Sch. 1 para. 17(b)"
    },
    {
      "type": "F",
      "label": "F3",
      "text": "Words in reg. 50(4)(a) inserted (14.7.2016) by The Electricity Capacity (Amendment) Regulations 2016 (S.I. 2016/742), reg. 1(2), Sch. 1 para. 57(a)"
    },
    {
      "type": "F",
      "label": "F4",
      "text": "Words in reg. 50(4)(b) substituted (14.7.2016) by The Electricity Capacity (Amendment) Regulations 2016 (S.I. 2016/742), reg. 1(2), Sch. 1 para. 57(b)"
    },
    {
      "type": "F",
      "label": "F5",
      "text": "Words in reg. 50(5)(a) inserted (24.3.2015) by The Electricity Capacity (Amendment) Regulations 2015 (S.I. 2015/875), reg. 1(2), Sch. 1 para. 17(c)"
    },
    {
      "type": "F",
      "label": "F6",
      "text": "Words in reg. 50(6) inserted (14.2.2025) by The Electricity Capacity (Amendment) Regulations 2025 (S.I. 2025/183), regs. 1(2), 8(a)"
    },
    {
      "type": "F",
      "label": "F7",
      "text": "Words in reg. 50(6) inserted (14.2.2025) by The Electricity Capacity (Amendment) Regulations 2025 (S.I. 2025/183), regs. 1(2), 8(b)"
    },
    {
      "type": "C",
      "label": "C1",
      "text": "Reg. 50 modified (4.7.2020) by The Electricity Capacity (Amendment etc.) (Coronavirus) Regulations 2020 (S.I. 2020/697), reg. 1(2), Sch. 2 para. 3"
    }
  ],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/uksi/2014/2043/regulation/50",
    "retrieved_at": "2026-10-29T00:07:34.872566+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."
}