Historic frequency data
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 NESO Data Portal.
2019
Second-by-second frequency data for the calendar year 2019.
| Name | Published Sort ascending |
|---|---|
| September 2019- Historic Frequency Data | 14 Feb 2020 |
| December 2019- Historic frequency Data | 14 Feb 2020 |
2018
Second-by-second frequency data for the calendar year 2018.
2017
Second-by-second frequency data for the calendar year 2017.
2016
Second-by-second frequency data for the calendar year 2016.
| Name | Published Sort ascending |
|---|---|
| October 2016 - Historic frequency data | 30 Jan 2018 |
| December 2016 - Historic frequency data | 30 Jan 2018 |
2015
Second-by-second frequency data for the calendar year 2015.
| Name | Published Sort ascending |
|---|---|
| October 2015 - Historic Frequency Data | 19 Jun 2018 |
| December 2015 - Historic Frequency Data | 19 Jun 2018 |
2014
Second-by-second frequency data for the calendar year 2014.
| Name | Published Sort ascending |
|---|---|
| October 2014 - Historic Frequency Data | 19 Jun 2018 |
| December 2014 - Historic Frequency Data | 19 Jun 2018 |
2019
Second-by-second frequency data for the calendar year 2019.
| Name | Published Sort ascending |
|---|---|
| September 2019- Historic Frequency Data | 14 Feb 2020 |
| December 2019- Historic frequency Data | 14 Feb 2020 |
2018
Second-by-second frequency data for the calendar year 2018.
2017
Second-by-second frequency data for the calendar year 2017.
2016
Second-by-second frequency data for the calendar year 2016.
| Name | Published Sort ascending |
|---|---|
| October 2016 - Historic frequency data | 30 Jan 2018 |
| December 2016 - Historic frequency data | 30 Jan 2018 |
2015
Second-by-second frequency data for the calendar year 2015.
| Name | Published Sort ascending |
|---|---|
| June 2015 - Historic Frequency Data | 19 Jun 2018 |
| August 2015 - Historic Frequency Data | 19 Jun 2018 |
2014
Second-by-second frequency data for the calendar year 2014.
| Name | Published Sort ascending |
|---|---|
| October 2014 - Historic Frequency Data | 19 Jun 2018 |
| December 2014 - Historic Frequency Data | 19 Jun 2018 |