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By 1 October 2025, the following generating CMU types for the T-4 Auction are required to complete Metering Assessments for the 2028/29 Delivery: Existing Generating Proven DSR Existing Interconnector Further details on completing Metering Assessments is available on our Stakeholder Support for Capacity Providers webpage. We have provided information in G1 – Capacity Market Metering to aid with any technical...
Capacity Providers are required to provide Metering Test Certificates to the EMR Delivery Body. For Delivery Year 2025/26, the deadline to provide this to EMR DB is 1 October 2025 for the following CMU types: T-1 Auction: New Build Refurbishing Prospective Interconnector To obtain your Metering Test Certificate, you must first complete a Metering Test on My...
LCCC’s Forecasting Team are hosting a webinar on the Interim Levy Rate and Total Reserve Amount forecast for Q1 2026. Also, they will cover the outcome from how the Q3 2025 performed against the forecast. They will also present indicative figures for the Q1 2026 Nuclear RAB forecast. Please note these are subject to change...
We would like to remind those who submit metered data via a self-submission metering pathway that Sunday 26 October 2025 is a clock change. The clocks go back an hour and this results in the Settlement Day, Sunday 26 October 2025 having 50 Settlement Periods. The method to deal with clock change days is described in Appendix 7 Clock...
On 27 November 2025, we will issue Mock System Stress Event Reporting to Capacity Providers. This reporting is to address data quality issues to improve the overall settlement accuracy if a System Stress Event were to happen. We have consolidated further details together on our Settlement Data webpage to support Capacity Providers in understanding the reporting received....
The Department for Energy Security and Net Zero has launched a consultation proposing key changes to the Capacity Market for Prequalification 2026. Read the consultation here. The consultation seeks views on six areas: Multiple price Capacity Market: Introducing a second, higher, price cap into the auction that could, if needed, to secure new build dispatchable...
On 7 November 2025, LCCC announced an adjustment to the Nuclear RAB Interim Levy Rate. Suppliers are reminded that they must maintain their Credit Cover requirement using the Interim Levy Rate applicable for the Quarterly Obligation Period. For the Quarterly Obligation Period from 1 December 2025 to 31 December 2025, the Interim Levy Rate is £3.494/MWh....
Following Prequalification Results Day on 11 November 2025, those Conditionally Prequalified Applicants are required to provide Credit Cover within 15 Working Days (WDs) after Prequalification Results Day. This deadline is 2 December 2025. Our Working Practice, WP35 – Applicant Credit Cover will provide you with the templates for Letter of Credit and also the bank account...
NESO (EMR Delivery Body) has completed the assessment and Applicants who disputed their initial prequalification decision are notified of appeal outcome. This date is confirmed within the Capacity Market Operational Plan published on NESO's website.
Suppliers are reminded that they must maintain their Credit Cover requirement using the Interim Levy Rate applicable for the Quarterly Obligation Period. For the Quarterly Obligation Period from 1 January 2026 to 31 March 2026, the Interim Levy Rate is £3.663/MWh. If your organisation is required to lodge additional Credit Cover to meet this requirement, please...
