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_DATA_AUG15 | 25 Sep 2015 |
MBSS_DATA_AUG16 | 29 Sep 2016 |
MBSS_DATA_AUG17 | 29 Sep 2017 |
MBSS_DATA_August_2018 Excel | 2 Oct 2018 |
MBSS_DATA_DEC15 | 28 Jan 2016 |
MBSS_DATA_DEC16 | 21 Feb 2017 |
MBSS_DATA_DEC17 | 2 Feb 2018 |
MBSS_DATA_December_2018 | 7 Feb 2019 |
MBSS_DATA_FEB16 | 24 Mar 2016 |
MBSS_DATA_FEB17 | 7 Apr 2017 |
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 |
---|---|
2018-01-20 pdf | 23 Jan 2018 |
2018-01-21_Daily_Balancing_Costs | 23 Jan 2018 |
2018-01-21_Daily_Balancing_Costs | 23 Jan 2018 |
2018-01-22 excel | 23 Jan 2018 |
2018-01-22 pdf | 23 Jan 2018 |
2018-01-23 excel | 25 Jan 2018 |
2018-01-23 pdf | 25 Jan 2018 |
2018-01-23 pdf | 30 Jan 2018 |
2018-01-24 Excel | 30 Jan 2018 |
2018-01-24 pdf | 30 Jan 2018 |
STOR
Name Sort descending | Published |
---|---|
TR31 and Runway Appendix | 24 Feb 2017 |
TR31_MIR_tables_and_charts | 24 Mar 2017 |
TR32 and Runway Appendix - EXT | 7 Jul 2017 |
TR32 and Runway Appendix - v2 EXT | 21 Jul 2017 |
TR32_MIR_tables_and_charts | 28 Jul 2017 |
TR32_MIR_tables_and_charts - v2 | 28 Jul 2017 |
TR33 and Runway Appendix | 15 Sep 2017 |
TR33_MIR_tables_and_charts | 20 Oct 2017 |
TR34 Results Appendix | 23 Feb 2018 |
TR34 Results Appendix v2 | 6 Mar 2018 |
Fast reserve
Name Sort descending | Published |
---|---|
Fast Reserve Market Report (March 2019) | 6 Mar 2019 |
Fast Reserve Market Report - Feb 2018 | 20 Feb 2018 |
Fast Reserve Market Report April 2018 | 20 Apr 2018 |
Fast Reserve Market Report August 18 | 20 Aug 2018 |
Fast Reserve Market Report August 2019 | 19 Aug 2019 |
Fast Reserve Market Report Data (January 2019) | 19 Nov 2018 |
Fast Reserve Market Report December 2018 | 17 Dec 2018 |
Fast Reserve Market Report December 2019 | 17 Dec 2019 |
Fast Reserve Market Report January 2019 | 17 Jan 2019 |
Fast Reserve Market Report July 2019 | 17 Jul 2019 |
FFR market information reports
Name Sort descending | Published |
---|---|
FFR Market Information (Oct 17) | 24 Aug 2017 |
FFR Market Information (Oct 17) Table | 24 Aug 2017 |
FFR Market Information (Oct-18) | 24 Aug 2018 |
FFR Market Information (Oct-18) Table | 24 Aug 2018 |
FFR Market Information (Oct-19) | 27 Aug 2019 |
FFR Market Information (Oct-19) Table | 27 Aug 2019 |
FFR Market Information (Sep 16) | 26 Jul 2016 |
FFR Market Information (Sep 16) Tables | 26 Jul 2016 |
FFR Market Information (Sep 19) | 23 Jul 2019 |
FFR Market Information (Sep-18) | 25 Jul 2018 |
FFR pre and post tender
Name Sort descending | Published |
---|---|
Post Tender Report - TR122 February 2020- EXT | 14 Feb 2020 |
Post Tender Report - TR123 March 2020- EXT | 17 Mar 2020 |
Post Tender Report - TR129 September 2020- EXT | 16 Sep 2020 |
Post Tender Report - TR130 October 2020 - EXt | 16 Oct 2020 |
Post Tender Report - TR131 November 2020- EXT | 17 Nov 2020 |
Post Tender Report December 2016 | 16 Dec 2016 |
Post Tender Report FEBRUARY 2017 EXT | 16 Feb 2017 |
Post Tender Report January 2017 | 18 Jan 2017 |
Post Tender Report January 2017 - Amended EXT | 18 Jan 2017 |
Post Tender Report MARCH 2017 EXT | 16 Mar 2017 |