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Datasets (13)
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Demand
Historic Demand Data
This section contains historic electricity demand, interconnector, hydro storage pumping, Non-BM Short Term Operating Reserve (STOR), wind and solar outturn data.
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  • DOC
Demand
Demand Data Update
This publication is similar to "Historic Demand Data" dataset but updated on a daily basis with approximately ten days lag in receiving settlement data. In the dataset, embedded forecast…
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  • DOC
Generation
Embedded Wind and Solar Forecasts
National Energy System Operator (NESO) publishes at a half-hourly resolution the embedded (refer to embedded document for definition) wind and solar forecast from within day up to 14 days ahead. This…
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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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Balancing costs
Dispatch Transparency
This dataset is a component of the Forward Plan 2020-21 commitment to increase the transparency of our operational decision making in the Balancing Mechanism (BM). It includes the publication of…
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Demand
7 Day Ahead Demand Forecast
This dataset contains national electricity demand forecast for 7 days ahead as well as all historic 7 day ahead demand forecasts. The forecast assists the industry to make efficient decisions in…
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Demand
2 Day Ahead Demand Forecast
This dataset contains national electricity demand forecast for 2 days ahead as well as all historic 2 day ahead demand forecasts. The forecast assists the industry to make efficient decisions in…
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  • XLSX
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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Ancillary services
Obligatory Reactive Power Service (ORPS)
The obligatory reactive power service (ORPS) is the provision of varying reactive power output. At any given output generators may be requested to produce or absorb reactive power to help manage…,…
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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…