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 descending | Published |
---|---|
MBSS_AUGUST_2014 | 20 Jul 2015 |
MBSS_August_2015 | 25 Sep 2015 |
MBSS_AUGUST_2016(1) | 4 Oct 2016 |
MBSS_August_2018 pdf | 2 Oct 2018 |
MBSS_Aug_2017 | 29 Sep 2017 |
MBSS_DATA_APR15 | 20 Jul 2015 |
MBSS_DATA_APR16 | 27 May 2016 |
MBSS_DATA_APR17 | 1 Jun 2017 |
MBSS_DATA_April_2018 Excel | 15 Jun 2018 |
MBSS_DATA_AUG14 | 20 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 descending | Published |
---|---|
2018-01-17 excel | 22 Jan 2018 |
2018-01-17 pdf | 19 Jan 2018 |
2018-01-17 pdf | 22 Jan 2018 |
2018-01-18 excel | 19 Jan 2018 |
2018-01-18 pdf | 19 Jan 2018 |
2018-01-19 excel | 22 Jan 2018 |
2018-01-19 pdf | 22 Jan 2018 |
2018-01-20 excel | 23 Jan 2018 |
2018-01-20 excel | 23 Jan 2018 |
2018-01-20 pdf | 23 Jan 2018 |
STOR
Name Sort descending | Published |
---|---|
TR28_MIR_tables_and_charts | 10 Jul 2017 |
TR28_MIR_tables_and_charts_V_2 | 10 Jul 2017 |
TR28_MIR_tables_and_charts_V_3 | 10 Jul 2017 |
TR29_Appendix | 1 Jul 2016 |
TR29_MIR_tables_and_charts | 18 Jul 2016 |
TR29_MIR_tables_and_charts v2 | 15 Aug 2016 |
TR30 Appendix | 30 Sep 2016 |
TR30 STOR Runway Appendix | 30 Sep 2016 |
TR30_MIR_tables_and_charts | 30 Oct 2016 |
TR30_MIR_tables_and_charts - v2 | 3 Nov 2016 |
Fast reserve
FFR market information reports
Name Sort descending | Published |
---|---|
FFR Market Information (Nov 16) | 23 Sep 2016 |
FFR Market Information (Nov 16) Tables | 23 Sep 2016 |
FFR Market Information (Nov 17) | 27 Sep 2017 |
FFR Market Information (Nov 17) Table | 27 Sep 2017 |
FFR Market Information (Nov-18) Table | 26 Sep 2018 |
FFR Market Information (Nov-19) | 25 Sep 2019 |
FFR Market Information (Nov-19) Table | 25 Sep 2019 |
FFR Market Information (November 2018) | 26 Sep 2018 |
FFR Market Information (Oct 16) | 24 Aug 2016 |
FFR Market Information (Oct 16) Tables | 24 Aug 2016 |
FFR pre and post tender
Name Sort descending | Published |
---|---|
Post Tender Report - TR109 January 2019 | 17 Jan 2019 |
Post Tender Report - TR110 February 2019 | 14 Feb 2019 |
Post Tender Report - TR111 March 2019 | 15 Mar 2019 |
Post Tender Report - TR114 June 2019 - EXT | 18 Jun 2019 |
Post Tender Report - TR115 July 2019 - EXT | 16 Jul 2019 |
Post Tender Report - TR116 August 2019 -EXT | 16 Aug 2019 |
Post Tender Report - TR117 September 2019 - EXT | 17 Sep 2019 |
Post Tender Report - TR118 October 2019 - EXT | 16 Oct 2019 |
Post Tender Report - TR119 November 2019 - EXT | 18 Nov 2019 |
Post Tender Report - TR120 December 2019 - EXT | 13 Dec 2019 |