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 |
|---|---|---|---|---|
| March 2019 - Historic Frequency Data | CSV | 1 year ago | Download (CSV) | view |
| April 2019 - Historic Frequency Data | CSV | 1 year ago | Download (CSV) | view |
| May 2019 - Historic Frequency Data | CSV | 1 year ago | Download (CSV) | view |
| June 2019 - Historic Frequency Data | CSV | 1 year ago | Download (CSV) | view |
| July 2019 - Historic Frequency Data | CSV | 1 year ago | Download (CSV) | view |
| August 2019 - Historic Frequency Data | CSV | 1 year ago | Download (CSV) | view |
| September 2019 - Historic Frequency Data | CSV | 1 year ago | Download (CSV) | view |
| October 2019 - Historic Frequency Data | CSV | 1 year ago | Download (CSV) | view |
| November 2019 - Historic Frequency Data | CSV | 1 year ago | Download (CSV) | view |
| December 2019 - 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/b4fc11ec-2f9b-465e-8974-37cc289f2aaa/download/f-2019-3.zip
curl -L https://api.neso.energy/dataset/cb1cc925-ecd8-4406-b021-3a3f368196e1/resource/5a511d6f-0cc4-4054-bb45-8ad3b81051ad/download/f-2019-4.zip
curl -L https://api.neso.energy/dataset/cb1cc925-ecd8-4406-b021-3a3f368196e1/resource/84a85749-18e1-4b6b-bb97-73888ccacfe0/download/f-2019-5.zip
curl -L https://api.neso.energy/dataset/cb1cc925-ecd8-4406-b021-3a3f368196e1/resource/f967b00a-36b4-4979-920e-77fdb6be8a9c/download/f-2019-6.zip
curl -L https://api.neso.energy/dataset/cb1cc925-ecd8-4406-b021-3a3f368196e1/resource/da48b1fe-8e54-48fc-87b9-f6b0362422e2/download/f-2019-7.zip
curl -L https://api.neso.energy/dataset/cb1cc925-ecd8-4406-b021-3a3f368196e1/resource/819a0821-cc6d-4909-a1ea-7dba5cab0c33/download/f-2019-8.zip
curl -L https://api.neso.energy/dataset/cb1cc925-ecd8-4406-b021-3a3f368196e1/resource/9ffafdfb-cf42-46b3-802f-a6d9a45794aa/download/f-2019-9.zip
curl -L https://api.neso.energy/dataset/cb1cc925-ecd8-4406-b021-3a3f368196e1/resource/65b4f284-4963-46c5-ae78-cab57fe5372f/download/f-2019-10.zip
curl -L https://api.neso.energy/dataset/cb1cc925-ecd8-4406-b021-3a3f368196e1/resource/3d1a42c0-5637-4702-b9c3-76a7c5d8f062/download/f-2019-11.zip
curl -L https://api.neso.energy/dataset/cb1cc925-ecd8-4406-b021-3a3f368196e1/resource/f0933bdd-1b0e-4dd3-aa7f-5498df1ba5b9/download/f-2019-12.zip