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 |
|---|---|---|---|---|
| June 2016 - Historic Frequency Data | CSV | 1 year ago | Download (CSV) | view |
| July 2016 - Historic Frequency Data | CSV | 1 year ago | Download (CSV) | view |
| September 2016 - Historic Frequency Data | CSV | 1 year ago | Download (CSV) | view |
| August 2016 - Historic Frequency Data | CSV | 1 year ago | Download (CSV) | view |
| October 2016 - Historic Frequency Data | CSV | 1 year ago | Download (CSV) | view |
| November 2016 - Historic Frequency Data | CSV | 1 year ago | Download (CSV) | view |
| December 2016 - Historic Frequency Data | CSV | 1 year ago | Download (CSV) | view |
| January 2017 - Historic Frequency Data | CSV | 1 year ago | Download (CSV) | view |
| February 2017 - Historic Frequency Data | CSV | 1 year ago | Download (CSV) | view |
| March 2017 - 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/19e18e2c-9104-479b-b741-1ea6befc7c71/download/f-2016-6.csv
curl -L https://api.neso.energy/dataset/cb1cc925-ecd8-4406-b021-3a3f368196e1/resource/22aff02a-7e1a-413f-afa1-4ca3e82ea426/download/f-2016-7.csv
curl -L https://api.neso.energy/dataset/cb1cc925-ecd8-4406-b021-3a3f368196e1/resource/fac03fe6-bc94-40aa-8882-311d5e93082b/download/f-2016-9.csv
curl -L https://api.neso.energy/dataset/cb1cc925-ecd8-4406-b021-3a3f368196e1/resource/8ee38f39-e8b4-42b6-8634-62d847e06d84/download/f-2016-8.csv
curl -L https://api.neso.energy/dataset/cb1cc925-ecd8-4406-b021-3a3f368196e1/resource/74b30661-acd2-4280-a0cc-90315ae1c68b/download/f-2016-10.csv
curl -L https://api.neso.energy/dataset/cb1cc925-ecd8-4406-b021-3a3f368196e1/resource/93cee8bd-0fed-4408-b148-246861c19104/download/f-2016-11.csv
curl -L https://api.neso.energy/dataset/cb1cc925-ecd8-4406-b021-3a3f368196e1/resource/9a0bf4eb-3a7f-48cb-af65-b753dc0e79d0/download/f-2016-12.csv
curl -L https://api.neso.energy/dataset/cb1cc925-ecd8-4406-b021-3a3f368196e1/resource/e7b276d2-0188-4dd9-8c0f-2176340158b1/download/f-2017-1.csv
curl -L https://api.neso.energy/dataset/cb1cc925-ecd8-4406-b021-3a3f368196e1/resource/6ff1c0ee-86cc-44b7-9902-e8fefd23b17c/download/f-2017-2.csv
curl -L https://api.neso.energy/dataset/cb1cc925-ecd8-4406-b021-3a3f368196e1/resource/f2142cc5-19f0-4724-bf8e-f93bd3daba78/download/f-2017-3.csv