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Trading
Balancing Services Contract Enactment
National Grid ESO procures balancing service contracts to balance demand and supply and to ensure the security and quality of electricity supply across Britain's transmission system. For some of…
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Data Portal changes and known issues
Data Portal: Planned Changes & Known Issues
Here you will find details of upcoming changes to the ESO Data Portal along with any known issues that we are working to resolve. If you have encountered any issues not captured in this table please…
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Trading
Upcoming trades
This dataset displays all upcoming electricity trades due to be delivered. To meet our forecast balancing requirements at minimum cost, we trade energy-related products. The data is refreshed every…
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Interconnectors
IFA2 - NGESO's Intraday Transfer Limit
These are the values submitted by NGESO 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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Carbon intensity
Historic generation mix and carbon intensity
The carbon intensity of electricity measures how much carbon dioxide emissions are produced per kilowatt hour. This dataset contains data from 1 January 2009. It has seasonal decomposition applied to…
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Interconnectors
North Sea Link - NGESO's Net Transfer Capacity
These are the values submitted by NGESO 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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Ancillary services
Short Term Operating Reserve (STOR) day ahead buy curve
As part of Clean Energy Package (CEP) 6.9, we will be running daily auction for procurement of STOR. The buy curve used in the daily assessment process is available here.
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Interconnectors
IFA - NGESO's Intraday Transfer Limit
These are the values submitted by NGESO 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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Interconnectors
BritNed - NGESO's Intraday Trading Limit
These are the values submitted by NGESO 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
14 Days Ahead Operational Metered Wind Forecasts
The dataset contains national and windfarm-level 0-14 Day Ahead wind forecasts for all the windfarms which provide real-time operational metering (SCADA telemetry) to the ESO. The forecasts are based…