Statutory guidance

Capacity Market Rules

The Capacity Market Rules provide the detail for implementing the operating framework set out in regulations.

From:
Department for Energy Security and Net Zero and Department for Business, Energy & Industrial Strategy
Published
1 August 2014
Last updated
17 December 2024 — See all updates

Documents

Informal Consolidation of Capacity Market Rules July 2024

PDF, 2.93 MB, 389 pages

Informal Consolidation of Capacity Market Rules July 2023

PDF, 2.34 MB, 369 pages

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Informal consolidation of Capacity Market Rules August 2022

PDF, 2.31 MB, 368 pages

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Informal consolidation of Capacity Market Rules July 2021 (updated 16 September 2021)

PDF, 3.16 MB, 374 pages

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Informal consolidation of Capacity Market Rules July 2020

PDF, 4.19 MB, 353 pages

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Informal consolidation of Capacity Market Rules July 2019

PDF, 2.43 MB, 314 pages

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Informal consolidation of Capacity Market Rules July 2017

PDF, 1.99 MB, 253 pages

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Informal consolidation of Capacity Market Rules July 2016

PDF, 2.05 MB, 244 pages

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Keeling Schedule for Capacity Market Rules July 2021 (Coronavirus modifications) (updated 16 September 2021)

PDF, 3.1 MB, 379 pages

Keeling schedule for Capacity Market Rules 2014 (Upcoming auctions)

PDF, 4.61 MB, 318 pages

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Keeling schedule for Capacity Market Rules 2014 (Conditional agreement auction)

PDF, 8.59 MB, 328 pages

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Keeling schedule for Capacity Market Rules 2014 (15 November 2018 agreements)

PDF, 8.85 MB, 325 pages

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Capacity Market (Amendment) (No.3) Rules 2024

PDF, 457 KB, 41 pages

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Capacity Market (Amendment) Rules 2024

PDF, 166 KB, 14 pages

Capacity Market (Amendment) Rules 2023

PDF, 173 KB, 9 pages

Capacity Market (Amendment) (No. 2) Rules 2022

PDF, 148 KB, 8 pages

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The Capacity Market (Amendment) Rules 2022

PDF, 125 KB, 9 pages

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The Capacity Market (Amendment) (No.2) Rules 2021

PDF, 185 KB, 11 pages

The Capacity Market (Amendment) Rules 2021

PDF, 603 KB, 62 pages

The Capacity Market (Amendment) (No. 3) Rules 2020

PDF, 261 KB, 6 pages

The Capacity Market (Amendment) (No. 2) Rules 2020

PDF, 999 KB, 67 pages

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The Capacity Market (Amendment) Rules 2020

PDF, 180 KB, 7 pages

The Capacity Market (Amendment) (No. 5) Rules 2019

PDF, 252 KB, 23 pages

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The Capacity Market (Amendment) (No. 4) Rules 2019

PDF, 166 KB, 14 pages

The Capacity Market (Amendment) (No. 3) Rules 2019

PDF, 127 KB, 10 pages

The Capacity Market (Amendment) (No. 2) Rules 2019

PDF, 458 KB, 54 pages

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Capacity Market (Amendment) Rules 2019

PDF, 159 KB, 10 pages

Capacity Market (Amendment) (No. 4) Rules 2017

PDF, 264 KB, 33 pages

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Capacity Market (Amendment) (No. 3) Rules 2017

PDF, 147 KB, 10 pages

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Capacity Market (Amendment) (No.2) Rules 2017

PDF, 127 KB, 19 pages

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Capacity Market (Amendment) Rules 2017

PDF, 1.97 MB, 256 pages

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The Capacity Market (Amendment) (No.3) Rules 2016

PDF, 257 KB, 10 pages

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Capacity Market (Amendment) (No.2) Rules 2016 [Ofgem]

PDF, 2.06 MB, 252 pages

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Capacity Market (Amendment) Rules 2016

PDF, 221 KB, 36 pages

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Capacity Market (Amendment) (No. 2) Rules 2015

PDF, 1.56 MB, 230 pages

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Capacity Market (Amendment) Rules 2015

PDF, 17.7 MB, 86 pages

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Capacity Market (Amendment)(No.2) Rules 2014

PDF, 437 KB, 4 pages

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Capacity Market (Amendment)(No.1) Rules 2014

PDF, 1010 KB, 6 pages

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Capacity Market Rules

PDF, 1.44 MB, 151 pages

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Guidance Document - Energy UK list

PDF, 418 KB, 13 pages

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Capacity Market Rules frequently asked questions

PDF, 256 KB, 13 pages

Details

17 August 2023

We have updated the Capacity Market frequently asked questions document, adding questions 11-13 to clarify changes made to the Capacity Market in July 2023.

The informal consolidation is for information only and should not be relied upon as a definitive statement of the Capacity Market Rules.

The rules provide the detail for implementing the operating framework set out in regulations. This means that the rules focus on the technical and administrative rules and procedures for how the Capacity Market operates and includes matters such as procedures relating to the day-to-day running of the Capacity Market, the process by which capacity providers pre-qualify, and rules for running capacity auctions and issuing capacity agreements to successful bidders.

Ofgem also have responsibility for managing and making any changes to the Capacity Market Rules. Ofgem Rule amendments are reproduced on this page, but these remain the responsibility of Ofgem, and any version on their website should be considered the most up to date version.

More information on the Capacity Market

See the Capacity Market appeals process guidance.

Updates to this page

Published 1 August 2014
Last updated 17 December 2024 + show all updates

  1. Added Capacity Market (Amendment) (No.3) Rules 2024.

  2. Added Informal Consolidation of Capacity Market Rules July 2024.

  3. Added Capacity Market (Amendment) Rules 2024.

  4. We have updated the Capacity Market frequently asked questions document, adding questions 11-13 to clarify changes made to the Capacity Market in July 2023.

  5. We have published the Capacity Market (Amendment) Rules 2023 and the Informal Consolidation of Capacity Market Rules July 2023.

  6. We have published the Informal Consolidation of Capacity Market Rules 2022.

  7. Capacity Market (Amendment) (No. 2) Rules 2022 published.

  8. We identified the following errors in the Informal Consolidation of Capacity Market Rules 2021 and the accompanying Keeling Schedule and have published corrected versions: in Schedule 9 several conversion factors had been copied into the adjacent Emission Factor column; minor inconsistencies in the Table of Contents for each document. Please ensure you are referring to the updated versions.

  9. The Capacity Market (Amendment) (No.2) Rules 2021, Informal Consolidation of Capacity Market Rules July 2021, and Keeling Schedule for Capacity Market Rules July (Coronavirus Modifications) added.

  10. The Capacity Market (Amendment) Rules 2021 added.

  11. The Capacity Market (Amendment) (No. 3) Rules 2020 added.

  12. Added Informal consolidation of Capacity Market Rules July 2020.

  13. Capacity Market (Amendment) (No.2) Rules 2020 added.

  14. Capacity Market (Amendment) Rules 2020 added, CM Rules 2014 Keeling schedule (Upcoming Auctions) updated.

  15. We've added the informal consolidation of Capacity Market Rules (July 2019) and 3 Keeling schedule documents for the Capacity Market Rules 2014.

  16. We’ve added the Capacity Market (Amendment) (No. 5) Rules 2019 as a result of them being signed in Parliament on 17 July 2019.

  17. We've added the Capacity Market (Amendment) (No.4) Rules 2019 and removed: Keeling Schedule (Tranche 1) and Keeling Schedule (Tranche 2) as further amendments to the Capacity Market Rules supersede the changes outlined in these schedules.

  18. The Capacity Market (Amendment) (No. 3) Rules 2019 added.

  19. Keeling Schedules for Capacity Market (Amendment) Rules 2019 (Tranches 1 and 2) added.

  20. The Capacity Market (Amendment) (No. 2) Rules 2019 added.

  21. Capacity Market Rules 2019 published

  22. Capacity Market (Amendment) (No. 4) Rules 2017.

  23. Capacity Market (Amendment) (No. 3) Rules 2017 published

  24. Updated FAQ's.

  25. Informal consolidation of Capacity Market Rules July 2017 published.

  26. Added 'Capacity Market (Amendment) Rules 2017', 'Capacity Market (Amendment) (No 2) Rules 2017' and 'Capacity Market (Amendment) (No. 2) Rules 2015'.

  27. Updated FAQ's.

  28. Updated Capacity Market FAQ's.

  29. Capacity Market Rules frequently asked questions.

  30. Capacity market rules and regulations.

  31. Revised Capacity Market Rules.

  32. Draft Capacity Market (Amendment) Rules 2015

  33. Capacity Market (Amendment No.2) Rules 2014

  34. Addition of CM guidance doc

  35. Capacity Market (Amendment) rules published.

  36. First published.

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