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 0.5 Hz above or below this value. Time values are all given in Greenwich Mean Time (GMT) starting January 2020.

NOTE: Due to the size and format of these files, to view the data, please download the CSV file and open it with Notepad++ for complete document loading.

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126 Data Files

Last Changed
Format
Name Format Last Changed Sort ascending Download Explore
August 2017 - Historic Frequency Data CSV 1 year ago Download (CSV) view
September 2017 - Historic Frequency Data CSV 1 year ago Download (CSV) view
October 2017 - Historic Frequency Data CSV 1 year ago Download (CSV) view
November 2017 - Historic Frequency Data CSV 1 year ago Download (CSV) view
December 2017 - Historic Frequency Data CSV 1 year ago Download (CSV) view
December 2018 - Historic Frequency Data CSV 1 year ago Download (CSV) view
November 2018 - Historic Frequency Data CSV 1 year ago Download (CSV) view
October 2018 - Historic Frequency Data CSV 1 year ago Download (CSV) view
September 2018 - Historic Frequency Data CSV 1 year ago Download (CSV) view
August 2018 - Historic Frequency Data CSV 1 year ago Download (CSV) view

Additional Information

Field Value
Creator National Grid Electricity System Operator
Date Created November 5, 2019 at 11:50 AM (UTC+00:00)
Source National Grid Electricity System Operator
Rights National Grid ESO Open Data Licence
Update Frequency Monthly

cURL integration

Copied

# Get a list of dataset's resources

curl -L -s https://api.nationalgrideso.com/api/3/action/datapackage_show?id=system-frequency-data | grep path

# Get resources

curl -L https://api.nationalgrideso.com/dataset/cb1cc925-ecd8-4406-b021-3a3f368196e1/resource/5f60b563-ad37-4aca-9aa1-557bdd283987/download/f-2017-8.csv

curl -L https://api.nationalgrideso.com/dataset/cb1cc925-ecd8-4406-b021-3a3f368196e1/resource/b0d623f6-381e-4c79-a1dd-a013f8eaaf98/download/f-2017-9.csv

curl -L https://api.nationalgrideso.com/dataset/cb1cc925-ecd8-4406-b021-3a3f368196e1/resource/b8ce3808-8f72-46f0-98d8-2ed8befa91f5/download/f-2017-10.csv

curl -L https://api.nationalgrideso.com/dataset/cb1cc925-ecd8-4406-b021-3a3f368196e1/resource/56fcb63c-4cb4-4de1-8a1d-d8fde291dfaa/download/f-2017-11.csv

curl -L https://api.nationalgrideso.com/dataset/cb1cc925-ecd8-4406-b021-3a3f368196e1/resource/e9987ee0-38d2-4b22-9a2f-ec935d5574a7/download/f-2017-12.csv

curl -L https://api.nationalgrideso.com/dataset/cb1cc925-ecd8-4406-b021-3a3f368196e1/resource/67f7a127-e352-4c09-b403-d44f2740e510/download/f-2018-12.csv

curl -L https://api.nationalgrideso.com/dataset/cb1cc925-ecd8-4406-b021-3a3f368196e1/resource/b3a66b62-f791-4cb3-ba99-ba7bc9b05333/download/f-2018-11.csv

curl -L https://api.nationalgrideso.com/dataset/cb1cc925-ecd8-4406-b021-3a3f368196e1/resource/cec33870-6c5e-4594-a62c-d824625cf404/download/f-2018-10.csv

curl -L https://api.nationalgrideso.com/dataset/cb1cc925-ecd8-4406-b021-3a3f368196e1/resource/9fe022eb-976f-4a17-beab-539ab00c61ea/download/f-2018-9.csv

curl -L https://api.nationalgrideso.com/dataset/cb1cc925-ecd8-4406-b021-3a3f368196e1/resource/c51be017-fa87-42c6-b818-1a192699d3eb/download/f-2018-8.csv

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