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Datasets (118)
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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…
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Constraint management
Constraint Management Intertrip Service Information (CMIS)
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
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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Ancillary services
Ancillary Services Important Industry Notifications
The dataset contains the latest update on important ancillary services procurement changes. Please subscribe to get the latest update.
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Balancing costs
Daily Balancing Services Use of System (BSUoS) Volume Data
The BSUoS charge recovers the cost of day-to-day operation of the transmission system. Generators and suppliers are liable for these charges, which are calculated daily as a flat tariff for all users…
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Balancing costs
Daily Balancing Services Use of System (BSUoS) Cost Data
The BSUoS charge recovers the cost of day-to-day operation of the transmission system. Generators and suppliers are liable for these charges, which are calculated daily as a flat tariff for all users…
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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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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…,…