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Datasets (112)
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FES: Pathways to Net Zero
The FES: Pathways to Net Zero represent a range of different, credible ways to decarbonise our energy system as we strive towards the 2050 target. One of the FES outputs is an agreed set of data…
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Constraint management
This dataset contains the 24-month ahead constraint costs on a monthly basis for the main boundaries on the transmission system. These costs are the costs of managing constraint boundaries (for…
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Constraint management
This dataset contains Mega Watt constraint limits for the main boundaries on the transmission system on weekly bases for 24 months ahead.
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System
This page holds the historic system frequency data for Great Britain at a 1 second resolution. It is the role of the National Grid ESO to keep the system frequency at 50 Hz, with a statutory limit of…
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Demand
This dataset contains incremental updates for 2-52 weeks ahead demand forecast. The forecast assist the industry to make efficient decisions in balancing their supply and demand positions.
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Constraint management
This dataset gives information on the arming and disarming of units contracted under CMIS (previously known as Constraint Management Pathfinder). The information is provided for each instance of…,…
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Demand Flexibility Service
Winter 2022/23 Data, The Demand Flexibility Service (DFS) has been developed to allow the NESO to access additional flexibility when the national demand is at its highest – during peak winter days –…
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Demand Flexibility Service
Please visit Demand Flexibility Service for the latest auction results. This dataset will no longer be updated. NESO are again launching the Demand Flexibility Service (DFS) for Winter 2023/24. The…
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Ancillary services
A set of auction results views which present the outcome of daily Enduring Auction Capability (EAC) - Balancing Reserve (BR) mock auction runs. The EAC-BR Mock Auction Results are updated daily in…,…
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Ancillary services
Please visit EAC auction results for the latest auction results. This dataset will no longer be updated.