This page holds historic frequency data for Great Britain at a 1 second resolution. N.B. 2019 data was updated on 14/2/2020 to correct for errors.
Data for 2020 onwards will be published on the National Grid ESO Data Portal.
2019
Second-by-second frequency data for the calendar year 2019.
Name Sort descending | Published |
---|---|
October 2019- Historic Frequency Data | 14 Feb 2020 |
September 2019- Historic Frequency Data | 14 Feb 2020 |
2018
Second-by-second frequency data for the calendar year 2018.
Name Sort descending | Published |
---|---|
October 2018 - Historic Frequency Data | 15 Mar 2019 |
September 2018 - Historic Frequency Data | 15 Mar 2019 |
2017
Second-by-second frequency data for the calendar year 2017.
2016
Second-by-second frequency data for the calendar year 2016.
Name Sort descending | Published |
---|---|
October 2016 - Historic frequency data | 30 Jan 2018 |
September 2016 - Historic frequency data | 30 Jan 2018 |
2015
Second-by-second frequency data for the calendar year 2015.
Name Sort descending | Published |
---|---|
October 2015 - Historic Frequency Data | 19 Jun 2018 |
September 2015 - Historic Frequency Data | 19 Jun 2018 |
2014
Second-by-second frequency data for the calendar year 2014.
Name Sort descending | Published |
---|---|
October 2014 - Historic Frequency Data | 19 Jun 2018 |
September 2014 - Historic Frequency Data | 19 Jun 2018 |
2019
Second-by-second frequency data for the calendar year 2019.
Name Sort descending | Published |
---|---|
October 2019- Historic Frequency Data | 14 Feb 2020 |
September 2019- Historic Frequency Data | 14 Feb 2020 |
2018
Second-by-second frequency data for the calendar year 2018.
Name Sort descending | Published |
---|---|
October 2018 - Historic Frequency Data | 15 Mar 2019 |
September 2018 - Historic Frequency Data | 15 Mar 2019 |
2017
Second-by-second frequency data for the calendar year 2017.
2016
Second-by-second frequency data for the calendar year 2016.
Name Sort descending | Published |
---|---|
October 2016 - Historic frequency data | 30 Jan 2018 |
September 2016 - Historic frequency data | 30 Jan 2018 |
2015
Second-by-second frequency data for the calendar year 2015.
Name Sort descending | Published |
---|---|
October 2015 - Historic Frequency Data | 19 Jun 2018 |
September 2015 - Historic Frequency Data | 19 Jun 2018 |
2014
Second-by-second frequency data for the calendar year 2014.
Name Sort descending | Published |
---|---|
October 2014 - Historic Frequency Data | 19 Jun 2018 |
September 2014 - Historic Frequency Data | 19 Jun 2018 |