Capacity Market auction parameters: letter from DESNZ to ESO, July 2024
Letter setting out the Capacity Market auction parameters for the T-1 auction for 2025 to 2026 delivery year, and the T-4 auction for 2028 to 2029 delivery year.
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The letter from the Secretary of State for Energy Security and Net Zero, RT Hon Ed Miliband MP, to Electricity System Operator (ESO) sets out the parameters, including the volume of capacity to be secured and de-rating factors for interconnectors, for the T-1 auction for 2025 to 2026 and the T-4 auction for 2028 to 2029.
The annex provides full details of auction parameters and the interconnector de-rating factors.
In line with the annual Capacity Market process, the parameters for the 2 auctions may be updated following pre-qualification and will be confirmed before the auctions are held in early 2025.