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_November_2016 | 11 Jan 2017 |
MBSS_November_2016 V2 | 17 Jan 2017 |
MBSS_DATA_DEC16 | 21 Feb 2017 |
MBSS_December_2016 | 21 Feb 2017 |
MBSS_January_2017 V1 | 10 Mar 2017 |
MBSS_DATA_JAN17 | 14 Mar 2017 |
MBSS_DATA_FEB17 | 7 Apr 2017 |
MBSS_February_2017 | 7 Apr 2017 |
MBSS_DATA_MAR17 | 4 May 2017 |
MBSS_March_2017 | 4 May 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 |
---|---|
2018-01-20 excel | 23 Jan 2018 |
2018-01-21_Daily_Balancing_Costs | 23 Jan 2018 |
2018-01-23 pdf | 25 Jan 2018 |
2018-01-23 excel | 25 Jan 2018 |
2018-01-23 pdf | 30 Jan 2018 |
2018-01-24 Excel | 30 Jan 2018 |
2018-01-24 pdf | 30 Jan 2018 |
2018-01-29 excel | 31 Jan 2018 |
2018-01-28 excel | 31 Jan 2018 |
2018-01-30 excel | 31 Jan 2018 |
STOR
Name | Published Sort descending |
---|---|
TR34 Results Appendix v2 | 6 Mar 2018 |
STOR TR34 MIR | 23 Mar 2018 |
TR34_MIR_tables_and_charts | 23 Mar 2018 |
TR35 Results Appendix | 29 Jun 2018 |
STOR TR35 MIR | 27 Jul 2018 |
TR35_MIR_tables_and_charts | 27 Jul 2018 |
TR36 Results Appendix - EXT | 21 Sep 2018 |
TR36_MIR_tables_and_charts | 12 Oct 2018 |
STOR TR36 MIR | 12 Oct 2018 |
STOR - Update for Market Participants | 6 Nov 2018 |
Fast reserve
Name | Published Sort descending |
---|---|
Fast Reserve Market Report December 2018 | 17 Dec 2018 |
Fast Reserve Market Information Report (Feb - 19) | 18 Dec 2018 |
Fast Reserve Market Report January 2019 | 17 Jan 2019 |
Fast Reserve Market Information Data (March 2019) | 25 Jan 2019 |
Fast Reserve Market Information Report (March 2019) | 25 Jan 2019 |
Fast Reserve Post Assessment Webex January 2019 | 7 Feb 2019 |
Fast Reserve Market Information (February 2019) | 12 Feb 2019 |
Fast Reserve Market Information (April 2019) | 22 Feb 2019 |
Fast Reserve Market Report (March 2019) | 6 Mar 2019 |
Fast Reserve Webex February 2019 | 6 Mar 2019 |
FFR market information reports
Name | Published Sort descending |
---|---|
FFR Tender Update - TR111 update | 14 Feb 2019 |
FFR Market Information (Apr-19) Table | 26 Feb 2019 |
FFR Market Information (Apr 19) | 26 Feb 2019 |
FFR Market Information (May-19) Table | 26 Mar 2019 |
FFR Market Information (May 19) | 26 Mar 2019 |
FFR Market Information (June 19) Table | 26 Apr 2019 |
FFR Market Information (June 19) | 26 Apr 2019 |
FFR Market Information (July-19) Table | 28 May 2019 |
FFR Market Information (July 19) EXT | 28 May 2019 |
FFR Market Information (Aug 19) | 26 Jun 2019 |
FFR pre and post tender
Name | Published Sort descending |
---|---|
Post Tender Report - TR109 January 2019 | 17 Jan 2019 |
Post Tender Report - TR108 December 2018 EXT - Amended 29.01.2019 | 29 Jan 2019 |
Post Tender Report - TR110 February 2019 | 14 Feb 2019 |
FFR Tender Update - TR111 update | 14 Feb 2019 |
Post Tender Report - TR111 March 2019 | 15 Mar 2019 |
Post Tender report - TR112 April 2019 - EXT | 16 Apr 2019 |
Post Tender report - TR113 May 2019 - EXT | 16 May 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 |