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_May_2017 | 28 Jun 2017 |
MBSS_May_2016 | 27 Jun 2016 |
MBSS_MAY_2015 | 20 Jul 2015 |
MBSS_March_2017 | 4 May 2017 |
MBSS_MARCH_2016(1) | 11 May 2016 |
MBSS_MARCH_2015 | 20 Jul 2015 |
MBSS_Jun_2017 | 7 Aug 2017 |
MBSS_June_2018 pdf | 1 Aug 2018 |
MBSS_June_2016 | 27 Jul 2016 |
MBSS_June_2015 | 27 Jul 2015 |
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 |
---|---|
2020-02-23 Excel | 25 Feb 2020 |
2020-02-22 PDF | 25 Feb 2020 |
2020-02-22 EXCEL | 25 Feb 2020 |
2020-02-21 PDF | 25 Feb 2020 |
2020-02-21 EXCEL | 25 Feb 2020 |
2020-02-20 PDF | 24 Feb 2020 |
2020-02-20 EXCEL | 24 Feb 2020 |
2020-02-19 PDF | 20 Feb 2020 |
2020-02-19 EXCEL | 20 Feb 2020 |
2020-02-18 PDF | 20 Feb 2020 |
STOR
Name Sort ascending | Published |
---|---|
TR31_MIR_tables_and_charts | 24 Mar 2017 |
TR31 and Runway Appendix | 24 Feb 2017 |
TR30_MIR_tables_and_charts - v2 | 3 Nov 2016 |
TR30_MIR_tables_and_charts | 30 Oct 2016 |
TR30 STOR Runway Appendix | 30 Sep 2016 |
TR30 Appendix | 30 Sep 2016 |
TR29_MIR_tables_and_charts v2 | 15 Aug 2016 |
TR29_MIR_tables_and_charts | 18 Jul 2016 |
TR29_Appendix | 1 Jul 2016 |
TR28_MIR_tables_and_charts_V_3 | 10 Jul 2017 |
Fast reserve
Name Sort ascending | Published |
---|---|
FR Market Information Apr19 | 30 Apr 2020 |
FR Market Information (September 17) | 26 Jul 2017 |
FR Market Information (October 17) | 24 Aug 2017 |
FR Market Information (November 17) | 26 Sep 2017 |
FR Market Information (March 18) | 25 Jan 2018 |
FR Market Information (July 17) | 24 May 2017 |
FR Market Information (January 18) | 24 Nov 2017 |
FR Market Information (February 18) | 22 Dec 2017 |
FR Market Information (December 17) | 25 Oct 2017 |
Fast Reserve Webex Sept 2019 | 25 Sep 2019 |
FFR market information reports
Name Sort ascending | Published |
---|---|
FFR Market Information Mar -20 Table | 24 Jan 2020 |
FFR Market Information Mar -20 | 24 Jan 2020 |
FFR Market Information Jan- 20 Table | 26 Nov 2019 |
FFR Market Information Jan- 20 | 26 Nov 2019 |
FFR Market Information Information - Nov 2020 | 24 Sep 2020 |
FFR Market Information Feb- 20 Table | 17 Dec 2019 |
FFR Market Information Feb- 20 | 17 Dec 2019 |
FFR Market Information Dec-19 table | 24 Oct 2019 |
FFR Market information Dec - 19 | 24 Oct 2019 |
FFR Market Information Apr-20 Table | 27 Feb 2020 |
FFR pre and post tender
Name Sort ascending | Published |
---|---|
Post Tender Report TR127 July 2020 - Amended | 30 Jul 2020 |
Post Tender Report MARCH 2017 EXT | 16 Mar 2017 |
Post Tender Report January 2017 - Amended EXT | 18 Jan 2017 |
Post Tender Report January 2017 | 18 Jan 2017 |
Post Tender Report FEBRUARY 2017 EXT | 16 Feb 2017 |
Post Tender Report December 2016 | 16 Dec 2016 |
Post Tender Report - TR131 November 2020- EXT | 17 Nov 2020 |
Post Tender Report - TR130 October 2020 - EXt | 16 Oct 2020 |
Post Tender Report - TR129 September 2020- EXT | 16 Sep 2020 |
Post Tender Report - TR123 March 2020- EXT | 17 Mar 2020 |