Capacity Market change proposals CP371, CP376, CP377, CP378, CP381: decision
Summary
Ofgem decision on Capacity Market change proposals CP371, CP376, CP377, CP378, CP381. Operative outcome of the January 2025 statutory consultation.
Why it matters
Operative rule changes for the Capacity Market. Each Change Proposal modifies how the CM operates; together they form a batch of design updates affecting auction clearing, de-rated capacity calculations, and participant behaviour.
Areas affected
Related programmes
Memo
Capacity Market change proposals CP371, CP376, CP377, CP378, CP381: decision | Ofgem Please enable JavaScript in your web browser to get the best experience. BETA This site is currently in BETA. Help us improve by giving us your feedback . Close alert: Capacity Market change proposals CP371, CP376, CP377, CP378, CP381: decision Publication type: Decision Publication date: 12 June 2025 Topic: Electricity generation Decision for: Capacity Market Rule change proposals CP371, CP376, CP377, CP378 and CP381: statutory consultation Print this page Related links CP371: Protection from Very Late Network Connections CP376: Clarifying restrictions on the role of Agent CP377: Increasing flexibility for SPD Portfolios CP378: Removing 50MW Limit on Individual CMUs in a Portfolio CP381: Change to the definition of SCEC in Rule 3.5.5 Share the page Share on Facebook Share on Twitter Share on LinkedIn This letter sets out our decisions on changes to the Capacity Market Rules (the “Rules”) pursuant to Regulation 77 of the Electricity Capacity Regulations 2014 (the “Regulations”). These decisions follow our Statutory Consultation of Capacity Market Rules change proposals CP371, CP376, CP377, CP378 and CP381 issued on 9 January 2025. These Rule changes will come into effect when laid before Parliament, ahead of the 2025 Prequalification Window. Appendix 1 sets out our changes to the Rules. Main document Decision on Capacity Market change proposals CP371, CP376, CP377, CP378, CP381 [PDF, 523.32KB] Print this page Related links CP371: Protection from Very Late Network Connections CP376: Clarifying restrictions on the role of Agent CP377: Increasing flexibility for SPD Portfolios CP378: Removing 50MW Limit on Individual CMUs in a Portfolio CP381: Change to the definition of SCEC in Rule 3.5.5 Share the page Share on Facebook Share on Twitter Share on LinkedIn Close