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Datasets (11)
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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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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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Ancillary services
Static Firm Frequency Response auction results
This dataset contains the results from daily auction for static FFR and buy orders. For service requirement see this page: Static FFR Requirements
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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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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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Generation
Day Ahead Wind Forecast
The dataset contains national and BMU wind forecast over a day ahead timescale as well as all historic day ahead wind forecasts to assist the industry to make efficient decisions in balancing their…
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Trading
Historic GTMA (Grid Trade Master Agreement) Trades Data
This dataset contains data for historic GTMA (Grid Trade Master Agreement) trades conducted since April 2015. The data includes the trade ID, start and end time and date, the volume in MW, the price…
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Constraint management
Day Ahead Constraint Flows and Limits
A snapshot of the limits and flows at relevant boundaries at day ahead stage. These flow values are true for when the measurement was taken and will not reflect any changes in the flows following the…
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System
System Frequency
This page holds the historic system frequency data for Great Britain at a 1 second resolution. It is the role of the National Grid ESO to keep the system frequency at 50 Hz, with a statutory limit of…
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Ancillary services
Quick Reserve Auction Requirement Forecast
Quick Reserve, separated into Negative Quick Reserve (NQR) and Positive Quick Reserve (PQR), is aimed primarily for reacting to pre-fault disturbances to restore the energy imbalance quickly and…