Enabling the use of Market-Wide Half-Hourly Settlement Systems in the Capacity Market

Enabling the use of Market-Wide Half-Hourly Settlement Systems in the Capacity Market | 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: Enabling the use of Market-Wide Half-Hourly Settlement Systems in the Capacity Market Publication type: Consultation Publication date: 4 December 2025 Closed date: 14 January 2026 Status: Closed (awaiting decision) Topic: Electricity generation, Metering Print this page Share the page Share on Facebook Share on Twitter Share on LinkedIn We are seeking views on a proposal to change the Capacity Market Rules to facilitate the use of Market-Wide Half-Hourly Settlement Systems. Consultation description This consultation is for a proposal to update definitions in the Capacity Market Rules so that they reflect recent changes made by the Market-Wide Half-Hourly Settlement Programme. This will ensure that Capacity Providers using these provisions can still meet the requirements set out in the Capacity Market Rules and participate in the Capacity Market. Who should respond We would like views from people with an interest in the Capacity Market, particularly Capacity Market participants. We would also welcome responses from other stakeholders and the public. How to respond Submit your responses by 13 January 2026 by emailing EMR_CMRules@ofgem.gov.uk Consultation documents Consultation on CP391: Enabling the use of Market-Wide Half-Hourly Settlement systems for the Supplier Metering Solution Configuration [PDF, 257.26KB] Print this page Share the page Share on Facebook Share on Twitter Share on LinkedIn Close