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Datasets (112)
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Constraint management
Thermal Constraint Costs
Thermal constraints are taken when the amount of energy that would flow naturally from one region to another exceeds the capacity of the circuits connecting the two regions. This dataset provides…
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Interconnectors
BritNed - NESO's Intraday Trading Limit
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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Interconnectors
IFA2 - NESO's Intraday Transfer Limit
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…,…
  • CSV
Interconnectors
IFA - NESO's Intraday Transfer Limit
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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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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Ancillary services
Firm Frequency Response (FFR) Post Tender Reports
The Firm Frequency Response (FFR) post tender reports are published following each monthly tender. They indicate which tenders were accepted and rejected and the information submitted for these…
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Demand
National Demand Balancing Mechanism Units
This dataset contains a preliminary list of Balancing Mechanism units that make up National Demand. This is related to the Historic Demand Data published here
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Connection registers
Interconnector Register
A list of interconnector projects that hold connection contracts with NESO. These include active interconnectors and future interconnector projects., Note, : The Mega Watt (MW) Total MW Import…
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Connection registers
Embedded Register
A list of connected or contracted to connect embedded generation projects in Scotland.
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Connection registers
Transmission Entry Capacity (TEC) register
A list of projects that hold contracts for Transmission Entry Capacity (TEC) with us. These include existing and future connection projects and projects that can be directly connected to the National…