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 |
---|---|
Procurement guidelines report 2017-18 | 30 Apr 2018 |
MBSS_Sep_2017 V2 | 27 Oct 2017 |
MBSS_Sep_2017 | 26 Oct 2017 |
MBSS_September_2018 pdf | 30 Oct 2018 |
MBSS_September_2016 | 28 Oct 2016 |
MBSS_September_2015 | 30 Oct 2015 |
MBSS_SEPTEMBER_2014 | 20 Jul 2015 |
MBSS_Oct_2017 | 1 Dec 2017 |
MBSS_October_2018 pdf | 27 Nov 2018 |
MBSS_October_2016 | 28 Nov 2016 |
Past MBSS packs
Name Sort ascending | Published |
---|---|
2014_15 - MBSS Pack | 17 Nov 2015 |
2013_14 - MBSS Pack | 17 Nov 2015 |
2006_07 - MBSS Pack | 17 Nov 2015 |
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 |
---|---|
Daily Balancing Costs 1920 Excel | 27 Feb 2020 |
Daily Balancing Costs 1819 excel | 5 Dec 2019 |
2020-03-05 pdf | 9 Mar 2020 |
2020-03-02 pdf | 4 Mar 2020 |
2020-03-02 excel | 4 Mar 2020 |
2020-03-01 pdf | 3 Mar 2020 |
2020-03-01 Excel | 3 Mar 2020 |
2020-02-29 PDF | 3 Mar 2020 |
2020-02-29 EXCEL | 3 Mar 2020 |
2020-02-28 pdf | 2 Mar 2020 |
STOR
Name Sort ascending | Published |
---|---|
TR39_MIR_tables_and_charts | 11 Oct 2019 |
TR39 Results Appendix - EXT | 20 Sep 2019 |
TR38_MIR_tables_and_charts | 26 Jul 2019 |
TR38 Results Appendix - EXT | 28 Jun 2019 |
TR37_MIR_tables_and_charts | 22 Mar 2019 |
TR37 Results Appendix - EXT | 22 Feb 2019 |
TR37 Results Appendix (Corrected STOR ID) - EXT | 26 Feb 2019 |
TR36_MIR_tables_and_charts | 12 Oct 2018 |
TR36 Results Appendix - EXT | 21 Sep 2018 |
TR35_MIR_tables_and_charts | 27 Jul 2018 |
Fast reserve
Name Sort ascending | Published |
---|---|
Market Report January 2018 | 19 Jan 2018 |
January Market Report V2 | 23 Jan 2018 |
FR Market Information September20 | 4 Aug 2020 |
FR Market Information October20 | 26 Aug 2020 |
FR Market Information November20 | 24 Sep 2020 |
FR Market Information May21 | 15 Mar 2021 |
FR Market Information May20 | 8 Apr 2020 |
FR Market Information March21 | 18 Jan 2021 |
FR Market Information March20 | 8 Apr 2020 |
FR Market Information June21 | 20 Apr 2021 |
FFR market information reports
FFR pre and post tender
Name Sort ascending | Published |
---|---|
Post Tender Report-September 2017 - EXT amended 29_09_2017 | 29 Sep 2017 |
Post Tender Report-September 2017 - EXT amended 19.09.2017 | 19 Sep 2017 |
Post Tender Report-September 2017 - EXT | 19 Sep 2017 |
Post Tender Report-October 2017 - EXT amended | 17 Oct 2017 |
Post Tender Report-October 2017 - EXT | 17 Oct 2017 |
Post Tender Report-November 2017 - EXT | 16 Nov 2017 |
Post Tender Report-January 2018 - TR97 EXT | 17 Jan 2018 |
Post Tender Report-December 2017 - EXT | 18 Dec 2017 |
Post Tender Report- TR132 December 2020- EXT | 16 Dec 2020 |
Post Tender Report- TR127 July 2020 – EXT | 16 Jul 2020 |