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 correct missing or irregular data points. The data is subject to change due to a data cleansing process taking place to provide the most accurate figures.
Batteries (NET discharge) are currently included in the OTHER category. Transmission-connected solar farms are currently included in the OTHER category. Pumped Storage units (NET) are represented in the STORAGE category. All Net-Negative values are curtailed at zero.
Updates will be released later in 2026, to highlight BESS (Battery Energy Storage System) and Transmission Solar values.

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1 Data Files

Last Changed
Format
Name Format Download Explore
Historic GB Generation Mix CSV Download (CSV) view

Additional Information

Field Value
Creator National Energy System Operator
Date Created March 4, 2020 at 1:07 PM (UTC+00:00)
Rights NESO Open Data Licence
Update Frequency Hourly

cURL integration

Copied

# Get a list of dataset's resources

curl -L -s https://api.neso.energy/api/3/action/datapackage_show?id=historic-generation-mix | grep path

# Get resources

curl -L https://api.neso.energy/dataset/88313ae5-94e4-4ddc-a790-593554d8c6b9/resource/f93d1835-75bc-43e5-84ad-12472b180a98/download/df_fuel_ckan.csv

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