Capacity Market Rules
The Capacity Market Rules provide the detail for implementing the operating framework set out in regulations.
Documents
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
Updates to this page
Published 1 August 2014Last updated 17 December 2024 + show all updates
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Added Capacity Market (Amendment) (No.3) Rules 2024.
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Added Informal Consolidation of Capacity Market Rules July 2024.
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Added Capacity Market (Amendment) Rules 2024.
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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.
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We have published the Capacity Market (Amendment) Rules 2023 and the Informal Consolidation of Capacity Market Rules July 2023.
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We have published the Informal Consolidation of Capacity Market Rules 2022.
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Capacity Market (Amendment) (No. 2) Rules 2022 published.
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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.
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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.
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The Capacity Market (Amendment) Rules 2021 added.
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The Capacity Market (Amendment) (No. 3) Rules 2020 added.
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Added Informal consolidation of Capacity Market Rules July 2020.
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Capacity Market (Amendment) (No.2) Rules 2020 added.
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Capacity Market (Amendment) Rules 2020 added, CM Rules 2014 Keeling schedule (Upcoming Auctions) updated.
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We've added the informal consolidation of Capacity Market Rules (July 2019) and 3 Keeling schedule documents for the Capacity Market Rules 2014.
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We’ve added the Capacity Market (Amendment) (No. 5) Rules 2019 as a result of them being signed in Parliament on 17 July 2019.
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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.
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The Capacity Market (Amendment) (No. 3) Rules 2019 added.
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Keeling Schedules for Capacity Market (Amendment) Rules 2019 (Tranches 1 and 2) added.
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The Capacity Market (Amendment) (No. 2) Rules 2019 added.
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Capacity Market Rules 2019 published
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Capacity Market (Amendment) (No. 4) Rules 2017.
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Capacity Market (Amendment) (No. 3) Rules 2017 published
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Updated FAQ's.
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Informal consolidation of Capacity Market Rules July 2017 published.
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Added 'Capacity Market (Amendment) Rules 2017', 'Capacity Market (Amendment) (No 2) Rules 2017' and 'Capacity Market (Amendment) (No. 2) Rules 2015'.
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Updated FAQ's.
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Updated Capacity Market FAQ's.
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Capacity Market Rules frequently asked questions.
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Capacity market rules and regulations.
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Revised Capacity Market Rules.
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Draft Capacity Market (Amendment) Rules 2015
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Capacity Market (Amendment No.2) Rules 2014
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Addition of CM guidance doc
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Capacity Market (Amendment) rules published.
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First published.