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Datasets (117)
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System
System Inertia
This dataset contains an estimate of the outturn inertia and market provided inertia for Great Britain Transmission System.
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Ancillary services
Enduring Auction Capability (EAC) auction results
The current suite of response services (DC, DM, and DR) are now being procured via the EAC platform. The daily auction results will now be published below. The previous results page will no longer be…
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Electricity Market Reform
Capacity Market Register
The EMR Delivery Body (DB) has an obligation to create and maintain Capacity Market Registers (CMR) for all capacity market auctions. Each CMR holds a record of all applications made to the Delivery…
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Demand
2-14 Days Ahead Demand Forecast
This dataset contains national electricity demand forecasts for 2-14 days ahead (medium term) as well as all historic 2-14 days ahead forecasts. These forecasts assist the industry to make efficient…
  • CSV
  • XLSX
Balancing costs
Current Balancing Services Use of System (BSUoS) Charges
There is a file for each run type we calculate a BSUoS charge for - Interim Initial (II), Settlement Final (SF) and Reconciliation Final (RF). These are updated daily with the actual Half Hourly…,…
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  • PNG
Demand
Day Ahead Demand Forecast
This dataset contains national electricity demand forecast for day ahead as well as all historic day ahead demand forecasts. The forecast assists the industry to make efficient decisions in balancing…
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Ancillary services
Static Firm Frequency Response auction results
This dataset contains the results from daily auction for static FFR and buy orders. For service requirement see this page: Static FFR Requirements
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Interconnectors
North Sea Link - NESO's Net Transfer Capacity
These are the values submitted by NESO to the interconnector capacity calculation processes which restrict the maximum GB import and export interconnector flows. The values are submitted in MW per…,…
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Generation
Daily & Weekly NRAPM (Negative Reserve Active Power Margin) Forecast
This dataset contains NRAPM (Negative Reserve Active Power Margin) forecast for Daily 2-14 days ahead and Weekly for 2-52 weeks ahead for both National and Scotland. The purpose of the NRAPM forecast…
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Demand Flexibility Service
Demand Flexibility Service
Demand Flexibility Service (DFS) allows the NESO to access additional flexibility. Email alerts are available for this dataset once subscribed, triggered by any modification to the files. The auction…