Revisions proposed by the Electricity Market Reform Delivery Body to the Relevant Balancing Services Guidelines
Summary
Ofgem consultation on revisions proposed by the Electricity Market Reform Delivery Body to the Relevant Balancing arrangements within the Capacity Market.
Why it matters
Specific Capacity Market design refinement. Relevant Balancing arrangements determine how CM units interact with the Balancing Mechanism. Affects CM unit dispatch behaviour and balancing-market outcomes.
Areas affected
Related programmes
Memo
Revisions proposed by the Electricity Market Reform Delivery Body to the Relevant Balancing Services Guidelines | 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: Revisions proposed by the Electricity Market Reform Delivery Body to the Relevant Balancing Services Guidelines Publication type: Decision Publication date: 28 November 2025 Topic: National Energy System Operator (NESO), Electricity transmission, Electricity distribution Print this page Related links NESO Electricity Market Reform Delivery Body: Relevant Balancing Services Guidelines Share the page Share on Facebook Share on Twitter Share on LinkedIn This document outlines our decision on revisions proposed by the Electricity Market Reform Delivery Body to the Relevant Balancing Services Guidelines. National Energy System Operator (NESO) in its role as the Delivery Body for Electricity Market Reform, consulted on changes to the Relevant Balancing Services (RBS) Guidelines between 15 September 2025 and 14 October 2025. We received a report from the Delivery Body on 23 October 2025 following this consultation, in line with requirements set out in Schedule 4 of the Capacity Market rules. The Delivery Body's submission to us included a version of the RBS Guidelines document indicating the final proposed revisions. The Delivery Body's review proposed the following revisions: the addition of Slow Reserve to the RBS list update the name of Firm Frequency Response to Static Firm Frequency Response the removal of Enhanced Frequency Response (EFR) from the RBS list Documents Decision on revisions proposed by the Electricity Market Reform Delivery Body to the Relevant Balancing Services Guidelines [PDF, 103.59KB] Print this page Related links NESO Electricity Market Reform Delivery Body: Relevant Balancing Services Guidelines Share the page Share on Facebook Share on Twitter Share on LinkedIn Close