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 November 2019 V2 | 8 Jan 2020 |
MBSS November 2019 V3 | 22 Jan 2020 |
MBSS October 2019 | 29 Nov 2019 |
MBSS September 2019 | 31 Oct 2019 |
MBSS _DATA_July_2018 Excel | 30 Aug 2018 |
MBSS_APRIL_2015 | 20 Jul 2015 |
MBSS_APRIL_2016 | 27 May 2016 |
MBSS_APRIL_2016 V2 | 12 Mar 2018 |
MBSS_April_2017 | 1 Jun 2017 |
MBSS_April_2018 pdf | 15 Jun 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 descending | Published |
---|---|
2018-01-12 pdf | 15 Jan 2018 |
2018-01-13 excel | 15 Jan 2018 |
2018-01-13 pdf | 15 Jan 2018 |
2018-01-14 excel | 16 Jan 2018 |
2018-01-14 pdf | 16 Jan 2018 |
2018-01-15 excel | 17 Jan 2018 |
2018-01-15 pdf | 17 Jan 2018 |
2018-01-16 excel | 18 Jan 2018 |
2018-01-16 pdf | 18 Jan 2018 |
2018-01-17 excel | 19 Jan 2018 |
STOR
Name Sort descending | Published |
---|---|
STOR TR38 MIR | 26 Jul 2019 |
STOR TR39 MIR | 11 Oct 2019 |
STOR_Annual_Market_Report_2013_14 | 10 Jul 2017 |
STOR_Annual_Market_Report_2013_14_Data | 10 Jul 2017 |
TR 28 Appendix | 10 Jul 2017 |
TR26_MIR_tables_and_charts | 10 Jul 2017 |
TR27 STOR Runway Appendix updated v_2 | 10 Jul 2017 |
TR27_Appendix_updated v_2 | 10 Jul 2017 |
TR27_MIR_tables_and_charts_updated v_2 | 10 Jul 2017 |
TR28 STOR Runway Appendix | 10 Jul 2017 |
Fast reserve
Name Sort descending | Published |
---|---|
Fast Reserve Market Information Data July 2019 | 24 May 2019 |
Fast Reserve Market Information Data November 2019 | 25 Sep 2019 |
Fast Reserve Market Information Data Oct 2019 | 24 Oct 2019 |
Fast Reserve Market Information Data Sept 2019 | 24 Jul 2019 |
Fast Reserve Market Information Report (December 2018) | 22 Oct 2018 |
Fast Reserve Market Information Report (Feb - 19) | 18 Dec 2018 |
Fast Reserve Market Information Report (June 19) | 25 Apr 2019 |
Fast Reserve Market Information Report (March 2019) | 25 Jan 2019 |
Fast Reserve Market Information Report (May 19) | 26 Mar 2019 |
Fast Reserve Market Information Report (November 2018) | 26 Sep 2018 |
FFR market information reports
Name Sort descending | Published |
---|---|
FFR Market Information (June 19) | 26 Apr 2019 |
FFR Market Information (June 19) Table | 26 Apr 2019 |
FFR Market Information (Mar 18) Table | 25 Jan 2018 |
FFR Market Information (Mar 18) Table - Update | 30 Jan 2018 |
FFR Market Information (Mar-18) | 25 Jan 2018 |
FFR Market Information (Mar-18) - Update | 30 Jan 2018 |
FFR Market Information (May 18) Table | 26 Mar 2018 |
FFR Market Information (May 19) | 26 Mar 2019 |
FFR Market Information (May-18) | 26 Mar 2018 |
FFR Market Information (May-19) Table | 26 Mar 2019 |
FFR pre and post tender
Name Sort descending | Published |
---|---|
Post Tender report - February 2018 TR98 - EXT | 16 Feb 2018 |
Post tender Report - July 2017- EXT | 18 Jul 2017 |
Post tender Report - July 2017- EXT amended 25.07.17 | 25 Jul 2017 |
Post Tender Report - June 2017 - EXT | 16 Jun 2017 |
Post Tender Report - June 2017 - EXT Amended 13.07.17 | 18 Jul 2017 |
Post Tender Report - June 2017 - EXT Amended 21.07.17 | 25 Jul 2017 |
Post Tender Report - TR106 October 2018 EXT revised 06.11.18 | 6 Nov 2018 |
Post Tender Report - TR107 November 2018 EXT | 16 Nov 2018 |
Post Tender Report - TR108 December 2018 | 18 Dec 2018 |
Post Tender Report - TR108 December 2018 EXT - Amended 29.01.2019 | 29 Jan 2019 |