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 | Published Sort descending |
---|---|
MBSS_June_2016 | 27 Jul 2016 |
MBSS_DATA_JUL16 | 23 Aug 2016 |
MBSS_July_2016 | 23 Aug 2016 |
MBSS_DATA_AUG16 | 29 Sep 2016 |
MBSS_AUGUST_2016(1) | 4 Oct 2016 |
MBSS_DATA_SEP16 | 28 Oct 2016 |
MBSS_September_2016 | 28 Oct 2016 |
MBSS_DATA_OCT16 | 28 Nov 2016 |
MBSS_October_2016 | 28 Nov 2016 |
MBSS_DATA_NOV16 | 11 Jan 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 | Published Sort descending |
---|---|
2018-01-17 excel | 22 Jan 2018 |
2018-01-19 pdf | 22 Jan 2018 |
2018-01-17 pdf | 22 Jan 2018 |
2018-01-19 excel | 22 Jan 2018 |
2018-01-22 pdf | 23 Jan 2018 |
2018-01-20 excel | 23 Jan 2018 |
2018-01-20 pdf | 23 Jan 2018 |
2018-01-21_Daily_Balancing_Costs | 23 Jan 2018 |
2018-01-20 pdf | 23 Jan 2018 |
2018-01-22 excel | 23 Jan 2018 |
STOR
Name | Published Sort descending |
---|---|
TR32 and Runway Appendix - v2 EXT | 21 Jul 2017 |
TR32_MIR_tables_and_charts | 28 Jul 2017 |
STOR TR32 MIR | 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 |
STOR TR33 MIR | 20 Oct 2017 |
STOR Annual Market Report 2016-2017 Data | 20 Dec 2017 |
STOR Annual Report 2016-2017 | 20 Dec 2017 |
TR34 Results Appendix | 23 Feb 2018 |
Fast reserve
Name | Published Sort descending |
---|---|
Fast Reserve Market Information Data (November 2018) | 26 Sep 2018 |
Fast Reserve Market Report September 18 v2 | 28 Sep 2018 |
Fast Reserve Market Report October 2018 | 18 Oct 2018 |
Fast Reserve Market Information Data (December 2018) | 22 Oct 2018 |
Fast Reserve Market Information Report (December 2018) | 22 Oct 2018 |
Fast Reserve Post Assessment Webex September 18 | 9 Nov 2018 |
Fast Reserve Market Report November 2018 | 16 Nov 2018 |
Fast Reserve Market Report Data (January 2019) | 19 Nov 2018 |
Fast Reserve Market Information (January 2019) | 19 Nov 2018 |
Fast Reserve Post Assessment Webex November 18 | 21 Nov 2018 |
FFR market information reports
Name | Published Sort descending |
---|---|
FFR Market Information (November 2018) | 26 Sep 2018 |
FFR tender update - Energy Response Payments | 27 Sep 2018 |
FFR Market Information (Dec 18) | 24 Oct 2018 |
FFR Market Information (Dec-18) Table | 24 Oct 2018 |
FFR Market Information (January 19) | 26 Nov 2018 |
FFR Market Information (January 19) Table | 26 Nov 2018 |
FFR Market Information (February 19) | 20 Dec 2018 |
FFR Market Information (February 19) Table | 20 Dec 2018 |
FFR Market Information Report - March 2019 | 25 Jan 2019 |
FFR Market Information Report (March-19) Table | 25 Jan 2019 |
FFR pre and post tender
Name | Published Sort descending |
---|---|
FFR Post Tender Report - May 2018 TR101- EXT | 17 May 2018 |
FFR Post Tender Report TR102 - June - EXT | 18 Jun 2018 |
FFR Post Tender Report TR103 - July - EXT | 17 Jul 2018 |
FFR Post Tender Report TR104 - August 18 - Ext | 16 Aug 2018 |
FFR Post Tender Report TR105 -September 2018 EXT | 18 Sep 2018 |
FFR Post Tender Report - TR106 October 2018 EXT | 16 Oct 2018 |
FRR tender update - Revised Post Tender Report TR107 - EXT | 6 Nov 2018 |
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 |