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Datasets (115)
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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…
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Trading
Interconnector Requirement and Auction Summary Data
National Energy System Operator (NESO) trades on interconnectors to adjust the flow of electricity into or out of Great Britain to help manage system issues such as thermal, voltage or stability…,…
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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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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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Carbon intensity
Carbon Intensity of Balancing Actions
The carbon intensity of balancing actions measures the difference between the carbon intensity of the combined Final Physical Notice (FPN) of machines in the Balancing Mechanism (BM) and the…
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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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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…
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Demand
Transmission Losses
There are a number of factors which influence transmission losses.  These include variations in zonal generation patterns, growth in northern vs southern generation, level of Scottish exports to…
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Ancillary services
Balancing Reserve Auction Requirement Forecast
The Balancing reserve service has been designed to secure firm positive and negative reserve on BM units at the day ahead stage. The service is procured via a daily auction at 08:15 for delivery…,…