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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124 Data Files
| Name | Format | Last Changed Sort ascending | Download | Explore |
|---|---|---|---|---|
| August 2022 – Historic Frequency Data | CSV | 1 year ago | Download (CSV) | view |
| July 2022 – Historic Frequency Data | CSV | 1 year ago | Download (CSV) | view |
| June 2022 – Historic Frequency Data | CSV | 1 year ago | Download (CSV) | view |
| May 2022 - Historic Frequency Data | CSV | 1 year ago | Download (CSV) | view |
| April 2022 - Historic Frequency Data | CSV | 1 year ago | Download (CSV) | view |
| March 2022 - Historic Frequency Data | CSV | 1 year ago | Download (CSV) | view |
| February 2022 - Historic Frequency Data | CSV | 1 year ago | Download (CSV) | view |
| January 2022 - Historic Frequency Data | CSV | 1 year ago | Download (CSV) | view |
| December 2021 - Historic Frequency Data | CSV | 1 year ago | Download (CSV) | view |
| November 2021 - 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
# 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/232121b1-d3ab-4d5a-9e57-4cfc23d62eba/download/fnew-2022-8.csv
curl -L https://api.nationalgrideso.com/dataset/cb1cc925-ecd8-4406-b021-3a3f368196e1/resource/3c62eb13-0531-4b20-b1a3-b9ff5095e5ef/download/fnew-2022-7.csv
curl -L https://api.nationalgrideso.com/dataset/cb1cc925-ecd8-4406-b021-3a3f368196e1/resource/15c16754-6ed4-491e-949f-a42c6145ff24/download/fnew-2022-6.csv
curl -L https://api.nationalgrideso.com/dataset/cb1cc925-ecd8-4406-b021-3a3f368196e1/resource/0a32dbfc-89e2-447d-a867-b10d5dbf3192/download/fnew-2022-5.csv
curl -L https://api.nationalgrideso.com/dataset/cb1cc925-ecd8-4406-b021-3a3f368196e1/resource/b3bbd2e7-50b1-49cb-8326-bc8f09003cde/download/fnew-2022-4.csv
curl -L https://api.nationalgrideso.com/dataset/cb1cc925-ecd8-4406-b021-3a3f368196e1/resource/182081de-9773-4b5b-9c87-17adbd1576e6/download/fnew-2022-3.zip
curl -L https://api.nationalgrideso.com/dataset/cb1cc925-ecd8-4406-b021-3a3f368196e1/resource/181e8958-bf78-4bd6-b6ca-b8376da8e1aa/download/fnew-2022-2.zip
curl -L https://api.nationalgrideso.com/dataset/cb1cc925-ecd8-4406-b021-3a3f368196e1/resource/43000c20-1208-4ca7-a419-712c7a1d375c/download/fnew-2022-1.zip
curl -L https://api.nationalgrideso.com/dataset/cb1cc925-ecd8-4406-b021-3a3f368196e1/resource/afe9895c-5937-4e78-8949-f0f026643666/download/fnew-2021-12.zip
curl -L https://api.nationalgrideso.com/dataset/cb1cc925-ecd8-4406-b021-3a3f368196e1/resource/9bc4746e-3152-4c6f-886e-58377ab88e0e/download/fnew-2021-11.zip
For any queries or feedback please contact [email protected]