On this page, you will find reports that we publish relating to the commercial operation of the electricity transmission system.
The service reports show the requirements for balancing services and the results of tender assessments. A service by service summary of the cost of balancing services is provided in the monthly balancing services summary (MBSS).
Service reports
The service reports show the requirements for balancing services and the results of tender assessments. A service by service summary of the cost of balancing services is provided in the monthly balancing services summary (MBSS).
Monthly balancing services summaries (MBSS)
From 2nd March 2020, MBSS files will be published on our new National Grid ESO Data Portal.
Please see link below for the location:
Name Sort ascending | Published |
---|---|
MBSS_October_2015 | 25 Nov 2015 |
MBSS_OCTOBER_2014 | 20 Jul 2015 |
MBSS_Nov_2017 | 12 Jan 2018 |
MBSS_November_2018 pdf | 24 Dec 2018 |
MBSS_November_2016 V3 | 12 Mar 2018 |
MBSS_November_2016 V2 | 17 Jan 2017 |
MBSS_November_2016 | 11 Jan 2017 |
MBSS_NOVEMBER_2015 | 13 Jan 2016 |
MBSS_NOVEMBER_2014_v2 | 20 Jul 2015 |
MBSS_May_2018 pdf | 11 Jul 2018 |
Past MBSS packs
Past MBSS packs
From 1st March 2020, Daily balancing costs (BSUoS) files will be published on our new National Grid ESO Data Portal.
Please see link below for the daily historic outturn & forecast file:
https://data.nationalgrideso.com/balancing/bsuos-monthly-cost
Please see link below for the daily balancing costs data files:
https://data.nationalgrideso.com/balancing/daily-balancing-costs-balancing-services-use-of-system
Please see link below for the daily balancing costs report files:
Name Sort ascending | Published |
---|---|
2020-02-28 Excel | 2 Mar 2020 |
2020-02-27 PDF | 2 Mar 2020 |
2020-02-27 EXCEL | 2 Mar 2020 |
2020-02-26 pdf | 27 Feb 2020 |
2020-02-26 excel | 27 Feb 2020 |
2020-02-25 pdf | 26 Feb 2020 |
2020-02-25 excel | 26 Feb 2020 |
2020-02-24 pdf | 26 Feb 2020 |
2020-02-24 excel | 26 Feb 2020 |
2020-02-23 pdf | 25 Feb 2020 |
STOR
Name Sort ascending | Published |
---|---|
TR35 Results Appendix | 29 Jun 2018 |
TR34_MIR_tables_and_charts | 23 Mar 2018 |
TR34 Results Appendix v2 | 6 Mar 2018 |
TR34 Results Appendix | 23 Feb 2018 |
TR33_MIR_tables_and_charts | 20 Oct 2017 |
TR33 and Runway Appendix | 15 Sep 2017 |
TR32_MIR_tables_and_charts - v2 | 28 Jul 2017 |
TR32_MIR_tables_and_charts | 28 Jul 2017 |
TR32 and Runway Appendix - v2 EXT | 21 Jul 2017 |
TR32 and Runway Appendix - EXT | 7 Jul 2017 |
Fast reserve
Name Sort ascending | Published |
---|---|
FR Market Information June20 | 30 Apr 2020 |
FR Market Information July20 | 16 Jun 2020 |
FR Market Information January21 | 16 Nov 2020 |
FR Market Information February21 | 15 Dec 2020 |
FR Market Information Feb19 | 30 Apr 2020 |
FR Market Information December20 | 16 Oct 2020 |
FR Market Information Data October 2019 | 23 Aug 2019 |
FR Market Information August20 | 25 Jun 2020 |
FR Market Information April21 | 12 Feb 2021 |
FR Market Information April20 | 8 Apr 2020 |
FFR market information reports
Name Sort ascending | Published |
---|---|
FFR Market Information- Jan 2021- Table | 25 Nov 2020 |
FFR Market Information- Jan 2021 | 25 Nov 2020 |
FFR Market Information- February 2021- table | 21 Dec 2020 |
FFR Market Information Report- Dec 2020 | 27 Oct 2020 |
FFR Market Information Report Oct 2020 Table | 25 Aug 2020 |
FFR Market Information Report Oct 2020 | 25 Aug 2020 |
FFR Market Information Report -Dec 2020- table | 27 Oct 2020 |
FFR Market Information Report - March 2021- table | 27 Jan 2021 |
FFR Market Information Report - March 2019 | 25 Jan 2019 |
FFR Market Information Report (March-19) Table | 25 Jan 2019 |
FFR pre and post tender
Name Sort ascending | Published |
---|---|
Post Tender Report- TR126 June 2020 - EXT | 16 Jun 2020 |
Post Tender Report- TR126 June 2020 - Amended- EXT | 6 Jul 2020 |
Post Tender Report- TR125 May 2020 - EXT | 19 May 2020 |
Post Tender Report- TR124 April 2020- EXT | 20 Apr 2020 |
Post Tender Report- TR121 January 2020- EXT | 16 Jan 2020 |
Post Tender Report- August 17- EXT | 16 Aug 2017 |
Post Tender Report TR135 March 2021 - EXT | 16 Mar 2021 |
Post Tender Report TR134 February 2021- EXT | 16 Feb 2021 |
Post Tender Report TR133 January 2021- EXT | 19 Jan 2021 |
Post Tender Report TR128 August 2020 - EXT | 18 Aug 2020 |