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 2014 - Historic Frequency Data | CSV | 1 year ago | Download (CSV) | view |
| September 2014 - Historic Frequency Data | CSV | 1 year ago | Download (CSV) | view |
| November 2014 - Historic Frequency Data | CSV | 1 year ago | Download (CSV) | view |
| January 2015 - Historic Frequency Data | CSV | 1 year ago | Download (CSV) | view |
| February 2015 - Historic Frequency Data | CSV | 1 year ago | Download (CSV) | view |
| April 2015 - Historic Frequency Data | CSV | 1 year ago | Download (CSV) | view |
| May 2015 - Historic Frequency Data | CSV | 1 year ago | Download (CSV) | view |
| March 2015 - Historic Frequency Data | CSV | 1 year ago | Download (CSV) | view |
| June 2015 - Historic Frequency Data | CSV | 1 year ago | Download (CSV) | view |
| July 2015 - 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/b295bc6b-2f1a-4f05-8925-54e7540b9137/download/f-2014-6.csv
curl -L https://api.neso.energy/dataset/cb1cc925-ecd8-4406-b021-3a3f368196e1/resource/0ecdb5ea-4b26-4273-b1d8-d61dc94b3ceb/download/f-2014-9.csv
curl -L https://api.neso.energy/dataset/cb1cc925-ecd8-4406-b021-3a3f368196e1/resource/0958d0a4-f98c-4617-92ab-a0de1b6ba0c0/download/f-2014-11.csv
curl -L https://api.neso.energy/dataset/cb1cc925-ecd8-4406-b021-3a3f368196e1/resource/67b59ac0-b297-4f90-936e-30039d2cf2df/download/f-2015-1.csv
curl -L https://api.neso.energy/dataset/cb1cc925-ecd8-4406-b021-3a3f368196e1/resource/2c5c2cb9-1fcd-45cc-8b13-e08e4b69e79b/download/f-2015-2.csv
curl -L https://api.neso.energy/dataset/cb1cc925-ecd8-4406-b021-3a3f368196e1/resource/350b3c70-f66a-48ca-8656-7de25401c03f/download/f-2015-4.csv
curl -L https://api.neso.energy/dataset/cb1cc925-ecd8-4406-b021-3a3f368196e1/resource/4248e877-0af0-4f6a-9e7d-ee5f7b13fcf3/download/f-2015-5.csv
curl -L https://api.neso.energy/dataset/cb1cc925-ecd8-4406-b021-3a3f368196e1/resource/0f008751-3f0b-4353-9d4a-72f208221532/download/f-2015-3.csv
curl -L https://api.neso.energy/dataset/cb1cc925-ecd8-4406-b021-3a3f368196e1/resource/b620b4ba-c243-47ea-9a0b-e08be7ad1cf6/download/f-2015-6.csv
curl -L https://api.neso.energy/dataset/cb1cc925-ecd8-4406-b021-3a3f368196e1/resource/2d901bcf-8907-45b4-8c7d-5fc91fb16b8b/download/f-2015-7.csv