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 |
---|---|
MBSS_DATA_SEP14 | 20 Jul 2015 |
MBSS_DATA_October_2018 excel | 27 Nov 2018 |
MBSS_DATA_OCT2017 | 1 Dec 2017 |
MBSS_DATA_OCT16 | 28 Nov 2016 |
MBSS_DATA_OCT15 | 25 Nov 2015 |
MBSS_DATA_OCT14 | 20 Jul 2015 |
MBSS_DATA_November_2018 excel | 24 Dec 2018 |
MBSS_DATA_NOV2017 | 12 Jan 2018 |
MBSS_DATA_NOV16 | 11 Jan 2017 |
MBSS_DATA_NOV15 | 11 Jan 2016 |
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 ascending | Published |
---|---|
2020-02-08 excel | 11 Feb 2020 |
2020-02-07 PDF | 11 Feb 2020 |
2020-02-07 EXCEL | 11 Feb 2020 |
2020-02-06 PDF | 7 Feb 2020 |
2020-02-06 EXCEL | 7 Feb 2020 |
2020-02-05 pdf | 6 Feb 2020 |
2020-02-05 excel | 6 Feb 2020 |
2020-02-04 PDF | 6 Feb 2020 |
2020-02-04 EXCEL | 6 Feb 2020 |
2020-02-03 pdf | 5 Feb 2020 |
STOR
Name Sort ascending | Published |
---|---|
STOR TR30 MIR - v3 | 3 Nov 2016 |
STOR TR30 MIR - v2 | 18 Oct 2016 |
STOR TR30 MIR | 31 Oct 2016 |
STOR TR29 MIR v1 | 18 Jul 2016 |
STOR TR28 MIR V_3 | 10 Jul 2017 |
STOR TR28 MIR V_2 | 10 Jul 2017 |
STOR TR28 MIR | 10 Jul 2017 |
STOR TR27 MIR_updated v_2 | 10 Jul 2017 |
STOR TR26 MIR | 10 Jul 2017 |
STOR Market Information TR22 | 10 Jul 2017 |
Fast reserve
Name Sort ascending | Published |
---|---|
Fast Reserve Market Report October 2019 | 17 Oct 2019 |
Fast Reserve Market Report October 2018 | 18 Oct 2018 |
Fast Reserve Market Report November 2019 | 19 Nov 2019 |
Fast Reserve Market Report November 2018 | 16 Nov 2018 |
Fast Reserve Market Report May 2019 | 20 May 2019 |
Fast Reserve Market Report May 18 | 21 May 2018 |
Fast Reserve Market Report June 2019 | 18 Jun 2019 |
Fast Reserve Market Report June 18 | 20 Jun 2018 |
Fast Reserve Market Report July 2019 | 17 Jul 2019 |
Fast Reserve Market Report January 2019 | 17 Jan 2019 |
FFR market information reports
Name Sort ascending | Published |
---|---|
FFR Market Information (Sep 16) Tables | 26 Jul 2016 |
FFR Market Information (Sep 16) | 26 Jul 2016 |
FFR Market Information (Oct-19) Table | 27 Aug 2019 |
FFR Market Information (Oct-19) | 27 Aug 2019 |
FFR Market Information (Oct-18) Table | 24 Aug 2018 |
FFR Market Information (Oct-18) | 24 Aug 2018 |
FFR Market Information (Oct 17) Table | 24 Aug 2017 |
FFR Market Information (Oct 17) | 24 Aug 2017 |
FFR Market Information (Oct 16) Tables | 24 Aug 2016 |
FFR Market Information (Oct 16) | 24 Aug 2016 |
FFR pre and post tender
Name Sort ascending | Published |
---|---|
Post Tender report - February 2018 TR98 - EXT | 16 Feb 2018 |
Post Tender report - TR113 May 2019 - EXT | 16 May 2019 |
Post Tender report - TR112 April 2019 - EXT | 16 Apr 2019 |
Post Assessment Tender Report September 2015 | 15 Sep 2015 |
Post Assessment Tender Report Sept 2016 | 16 Sep 2016 |
Post Assessment Tender Report October 2015 | 16 Oct 2015 |
Post Assessment Tender Report Oct 2016 | 18 Oct 2016 |
Post Assessment Tender Report November 2015 | 17 Nov 2015 |
Post Assessment Tender Report Nov 2016 | 16 Nov 2016 |
Post Assessment Tender Report May 2016 | 18 May 2016 |