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 |
|---|---|---|---|---|
| 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 |
| July 2018 - Historic Frequency Data | CSV | 1 year ago | Download (CSV) | view |
| June 2018 - Historic Frequency Data | CSV | 1 year ago | Download (CSV) | view |
| May 2018 - Historic Frequency Data | CSV | 1 year ago | Download (CSV) | view |
| April 2018 - Historic Frequency Data | CSV | 1 year ago | Download (CSV) | view |
| March 2018 - Historic Frequency Data | CSV | 1 year ago | Download (CSV) | view |
| February 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 | 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/b3a66b62-f791-4cb3-ba99-ba7bc9b05333/download/f-2018-11.csv
curl -L https://api.neso.energy/dataset/cb1cc925-ecd8-4406-b021-3a3f368196e1/resource/cec33870-6c5e-4594-a62c-d824625cf404/download/f-2018-10.csv
curl -L https://api.neso.energy/dataset/cb1cc925-ecd8-4406-b021-3a3f368196e1/resource/9fe022eb-976f-4a17-beab-539ab00c61ea/download/f-2018-9.csv
curl -L https://api.neso.energy/dataset/cb1cc925-ecd8-4406-b021-3a3f368196e1/resource/c51be017-fa87-42c6-b818-1a192699d3eb/download/f-2018-8.csv
curl -L https://api.neso.energy/dataset/cb1cc925-ecd8-4406-b021-3a3f368196e1/resource/bf45c11d-c787-4f84-8896-b14381f534c7/download/f-2018-7.csv
curl -L https://api.neso.energy/dataset/cb1cc925-ecd8-4406-b021-3a3f368196e1/resource/2779f782-5938-4857-86d8-25350c2d4162/download/f-2018-6.csv
curl -L https://api.neso.energy/dataset/cb1cc925-ecd8-4406-b021-3a3f368196e1/resource/215f0a52-d0dd-40ee-a103-6d14a5361e41/download/f-2018-5.csv
curl -L https://api.neso.energy/dataset/cb1cc925-ecd8-4406-b021-3a3f368196e1/resource/4ebc55c9-7ad6-41e9-9154-b5769dbc17b8/download/f-2018-4.csv
curl -L https://api.neso.energy/dataset/cb1cc925-ecd8-4406-b021-3a3f368196e1/resource/8e84b78f-8078-4188-965f-41685fd316bc/download/f-2018-3.csv
curl -L https://api.neso.energy/dataset/cb1cc925-ecd8-4406-b021-3a3f368196e1/resource/ac669df9-1928-4a8c-9109-2494678f6c87/download/f-2018-2.csv