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  • Supplier Capacity Market Demand Forecast 2026 Deadline

    Suppliers are required, under the Electricity Capacity (Supplier Payment etc.) Regulations 2014, to provide a forecast of Gross Demand for the Period of High Demand: 4pm to 7pm on Working Days from November through to February for the 2026/27 Delivery Year. This forecast is used to calculate Suppliers’ monthly Capacity Market (CM) Supplier Charge and monthly...

  • Deadline to lodge CfD Supplier Credit Cover for Q3 2026

    Suppliers are required to maintain their Credit Cover requirement using the Interim Levy Rate applicable for the Quarterly Obligation Period. The CfD Interim Levy Rate of £10.559/MWh is effective from 1 July 2026 to 30 September 2026. If a Supplier is required to lodge additional Credit Cover, please ensure you have sufficient Credit Cover lodged by 5:00pm on 30 June 2026....

  • Deadline to lodge Nuclear RAB Supplier Credit Cover for Q3 2026

    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 July 2026 to 30 September 2026, the Nuclear RAB Interim Levy Rate is £4.488/MWh. If your organisation is required to lodge additional Credit Cover to meet this...

  • Deadline to complete Metering Assessments for 2026/27 Delivery Year – Proven DSR and Existing Generating / Existing Interconnector

    By 4 July 2026, the following CMU types for the T-1 Auction are required to complete Metering Assessments for the 2026/27 Delivery: Proven DSR Existing Generating / Existing Interconnector Further details on completing Metering Assessments are available on our Stakeholder Support for Capacity Providers webpage. We have also provided information in G1 – Capacity Market Metering to aid with...

  • Delivery Body Prequalification Launch Event

    Faraday House Warwick Technology Park, Warwick, United Kingdom

    You’re invited to a Prequalification Launch event hosted by NESO (Delivery Body) on Wednesday 29 July 2026. Click here to register. The event will include morning presentations from the Delivery Body, Ofgem, DESNZ and ourselves. After lunch, there will be a number of breakout sessions led by subject matter experts, focusing on key prequalification topics relevant to Prequalification...

  • Deadline to provide Metering Test Certificate for 2026/27 Delivery Year – Proven DSR and Existing Generating / Existing Interconnector

    By 17 September 2026, the following CMU types for the T-1 Auction will need to provide Metering Test Certificates to the EMR Delivery Body (DB): Proven DSR Existing Generating / Existing Interconnector To obtain your Metering Test Certificate, you must first complete a Metering Test on My EMRS by submitting a Single Line Diagram, Metering Statement...

  • Deadline to complete Metering Assessments for 2025/26 Delivery Year

    By 30 September 2026, the following generating CMU types for the T-4 Auction are required to complete Metering Assessments for the 2025/26 Delivery: New Build Refurbishing Prospective 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 queries...

  • Deadline to provide Metering Test Certificate to EMR DB for DY 2025/26

    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 30 September 2026 for the following CMU types: T-4 Auction: New Build Refurbishing Prospective Interconnector To obtain your Metering Test Certificate, you must first complete a Metering Test...