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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130 Data Files
| Name | Format | Last Changed Sort ascending | Download | Explore |
|---|---|---|---|---|
| August 2015 - Historic Frequency Data | CSV | 1 year ago | Download (CSV) | view |
| September 2015 - Historic Frequency Data | CSV | 1 year ago | Download (CSV) | view |
| November 2015 - Historic Frequency Data | CSV | 1 year ago | Download (CSV) | view |
| December 2015 - Historic Frequency Data | CSV | 1 year ago | Download (CSV) | view |
| October 2015 - Historic Frequency Data | CSV | 1 year ago | Download (CSV) | view |
| January 2016 - Historic Frequency Data | CSV | 1 year ago | Download (CSV) | view |
| February 2016 - Historic Frequency Data | CSV | 1 year ago | Download (CSV) | view |
| March 2016 - Historic Frequency Data | CSV | 1 year ago | Download (CSV) | view |
| April 2016 - Historic Frequency Data | CSV | 1 year ago | Download (CSV) | view |
| May 2016 - 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 | NESO Open Data Licence |
| Update Frequency | Monthly |
cURL integration
# Get a list of dataset's resources
curl -L -s https://api.neso.energy/api/3/action/datapackage_show?id=system-frequency-data | grep path
# Get resources
curl -L https://api.neso.energy/dataset/cb1cc925-ecd8-4406-b021-3a3f368196e1/resource/6f7c57ba-8c46-4b75-950b-3edaa5d6b1b5/download/f-2015-8.csv
curl -L https://api.neso.energy/dataset/cb1cc925-ecd8-4406-b021-3a3f368196e1/resource/3ac1a58b-3c1e-456d-a515-04a8c154b374/download/f-2015-9.csv
curl -L https://api.neso.energy/dataset/cb1cc925-ecd8-4406-b021-3a3f368196e1/resource/160fb47a-da74-4026-a22a-a51e792d22f6/download/f-2015-11.csv
curl -L https://api.neso.energy/dataset/cb1cc925-ecd8-4406-b021-3a3f368196e1/resource/da6bc05c-4bca-4f72-8485-71aa10d17ef4/download/f-2015-12.csv
curl -L https://api.neso.energy/dataset/cb1cc925-ecd8-4406-b021-3a3f368196e1/resource/0bf8a3cf-d3b2-40bb-a203-58bcf0391b09/download/f-2015-10.csv
curl -L https://api.neso.energy/dataset/cb1cc925-ecd8-4406-b021-3a3f368196e1/resource/8a7a0ec6-a304-4f6e-b722-2f595cfde45b/download/f-2016-1.csv
curl -L https://api.neso.energy/dataset/cb1cc925-ecd8-4406-b021-3a3f368196e1/resource/0925f06c-1fab-4af9-827b-8fe0bc9812ea/download/f-2016-2.csv
curl -L https://api.neso.energy/dataset/cb1cc925-ecd8-4406-b021-3a3f368196e1/resource/c8e26834-7b2b-4ad5-b365-b7cae23ddbc7/download/f-2016-3.csv
curl -L https://api.neso.energy/dataset/cb1cc925-ecd8-4406-b021-3a3f368196e1/resource/4e1e37f9-9ee8-4fcd-a9ac-a74fca270cbd/download/f-2016-4.csv
curl -L https://api.neso.energy/dataset/cb1cc925-ecd8-4406-b021-3a3f368196e1/resource/9ce83f3a-0d10-4f92-a8b4-5b6de71f66ef/download/f-2016-5.csv