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Datasets (10)
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Generation
Daily operational planning margin requirement (OPMR)
OPMR is the amount of generation exceeding the demand forecast needed to meet our reserve requirement. When assessing and publishing generation availability information against system requirements,…
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Generation
Daily Wind Availability
This publication displays the Electricity System Operator’s (ESO) wind generator availability in megawatts (MW) at a daily resolution for 2-14 days ahead.
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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…
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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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Ancillary services
Short Term Operating Reserve (STOR) Windows
This dataset sets out the Short Term Operating Reserve (STOR) committed windows from Season 15 to Season 19 applicable from 1 April 2021 to 1 April 2026. These seasons define the committed windows…
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Balancing costs
Constraint Breakdown Costs and Volume
The publication consists of constraint breakdown information to provide additional transparency of why as ESO we are taking actions on the system. Please note that tags applied to actions can…
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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) Forecast
This file contains the Electricity System Operator's (ESO) half-hourly BSUoS forecast (Balancing Services Use of System charge). The estimated BSUoS charge is calculated by taking the forecast…