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_Jul_2017 | 1 Sep 2017 |
MBSS_July_2018 pdf | 30 Aug 2018 |
MBSS_July_2016 | 23 Aug 2016 |
MBSS_July_2015 | 2 Sep 2015 |
MBSS_Jan_2018 V2 | 8 Mar 2018 |
MBSS_Jan_2018 | 2 Mar 2018 |
MBSS_January_2017 V1 | 10 Mar 2017 |
MBSS_JANUARY_2016 | 3 Mar 2016 |
MBSS_JANUARY_2015 | 20 Jul 2015 |
MBSS_Feb_2018 | 29 Mar 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 |
---|---|
2020-02-18 EXCEL | 20 Feb 2020 |
2020-02-17 PDF | 19 Feb 2020 |
2020-02-17 EXCEL | 19 Feb 2020 |
2020-02-16 PDF | 20 Feb 2020 |
2020-02-16 EXCEL | 20 Feb 2020 |
2020-02-15 PDF | 18 Feb 2020 |
2020-02-15 EXCEL | 18 Feb 2020 |
2020-02-14 PDF | 18 Feb 2020 |
2020-02-14 EXCEL | 18 Feb 2020 |
2020-02-13 PDF | 14 Feb 2020 |
STOR
Name Sort ascending | Published |
---|---|
TR28_MIR_tables_and_charts_V_2 | 10 Jul 2017 |
TR28_MIR_tables_and_charts | 10 Jul 2017 |
TR28 STOR Runway Appendix | 10 Jul 2017 |
TR27_MIR_tables_and_charts_updated v_2 | 10 Jul 2017 |
TR27_Appendix_updated v_2 | 10 Jul 2017 |
TR27 STOR Runway Appendix updated v_2 | 10 Jul 2017 |
TR26_MIR_tables_and_charts | 10 Jul 2017 |
TR 28 Appendix | 10 Jul 2017 |
STOR_Annual_Market_Report_2013_14_Data | 10 Jul 2017 |
STOR_Annual_Market_Report_2013_14 | 10 Jul 2017 |
Fast reserve
Name Sort ascending | Published |
---|---|
Fast Reserve Webex November 2019 | 25 Oct 2019 |
Fast Reserve Webex November 2019 | 22 Nov 2019 |
Fast Reserve Webex May 2019 | 24 May 2019 |
Fast Reserve Webex June 2019 | 26 Jun 2019 |
Fast Reserve Webex July 2019 | 24 Jul 2019 |
Fast Reserve Webex February 2019 | 6 Mar 2019 |
Fast Reserve Webex December 2019 | 20 Dec 2019 |
Fast Reserve Webex August 19 | 23 Aug 2019 |
Fast Reserve Webex April 2019 | 24 Apr 2019 |
Fast Reserve Post Assessment Webex September 18 | 9 Nov 2018 |
FFR market information reports
Name Sort ascending | Published |
---|---|
FFR Market Information -July 2020 | 27 May 2020 |
FFR Market Information - Sept 2020 - Table | 24 Jul 2020 |
FFR Market Information - Sept 2020 | 24 Jul 2020 |
FFR Market Information - Nov 2020- Table | 24 Sep 2020 |
FFR Market Information - May 20 Table | 25 Mar 2020 |
FFR Market Information - May 20 | 25 Mar 2020 |
FFR Market Information - June 2021- Table | 26 Mar 2021 |
FFR Market Information - June 2020 - table | 28 Apr 2020 |
FFR Market Information - June 2020 | 28 Apr 2020 |
FFR Market information - July 2020- table | 27 May 2020 |
FFR pre and post tender
Name Sort ascending | Published |
---|---|
Post Tender Report - TR122 February 2020- EXT | 14 Feb 2020 |
Post Tender Report - TR120 December 2019 - EXT | 13 Dec 2019 |
Post Tender Report - TR119 November 2019 - EXT | 18 Nov 2019 |
Post Tender Report - TR118 October 2019 - EXT | 16 Oct 2019 |
Post Tender Report - TR117 September 2019 - EXT | 17 Sep 2019 |
Post Tender Report - TR116 August 2019 -EXT | 16 Aug 2019 |
Post Tender Report - TR115 July 2019 - EXT | 16 Jul 2019 |
Post Tender Report - TR114 June 2019 - EXT | 18 Jun 2019 |
Post Tender Report - TR111 March 2019 | 15 Mar 2019 |
Post Tender Report - TR110 February 2019 | 14 Feb 2019 |