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_DATA_SEP17 | 26 Oct 2017 |
MBSS_Sep_2017 | 26 Oct 2017 |
MBSS_Sep_2017 V2 | 27 Oct 2017 |
MBSS_DATA_OCT2017 | 1 Dec 2017 |
MBSS_Oct_2017 | 1 Dec 2017 |
MBSS_DATA_NOV2017 | 12 Jan 2018 |
MBSS_Nov_2017 | 12 Jan 2018 |
MBSS_DATA_DEC17 | 2 Feb 2018 |
MBSS_Dec_2017 | 2 Feb 2018 |
MBSS_Jan_2018 | 2 Mar 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 | Published Sort descending |
---|---|
2018-01-31 excel | 2 Feb 2018 |
2018-02-01 excel | 2 Feb 2018 |
2018-01-31 pdf | 2 Feb 2018 |
2018-01-31 pdf | 2 Feb 2018 |
2018-02-01 pdf | 2 Feb 2018 |
2018-02-02 excel | 5 Feb 2018 |
2018-02-02 pdf | 5 Feb 2018 |
2018-02-03 pdf | 6 Feb 2018 |
2018-02-05 excel | 6 Feb 2018 |
2018-02-04 excel | 6 Feb 2018 |
Fast reserve
Name | Published Sort descending |
---|---|
Fast Reserve Market Report June 2019 | 18 Jun 2019 |
Fast Reserve Market Information Data August 2019 | 26 Jun 2019 |
Fast Reserve Webex June 2019 | 26 Jun 2019 |
Fast Reserve Market Information Report August 2019 | 26 Jun 2019 |
Fast Reserve Market Report July 2019 | 17 Jul 2019 |
Fast Reserve Market Information Report September 2019 | 24 Jul 2019 |
Fast Reserve Market Information Data Sept 2019 | 24 Jul 2019 |
Fast Reserve Webex July 2019 | 24 Jul 2019 |
Fast Reserve Market Report August 2019 | 19 Aug 2019 |
FR Market Information Data October 2019 | 23 Aug 2019 |
FFR market information reports
Name | Published Sort descending |
---|---|
FFR Market Information Jan- 20 | 26 Nov 2019 |
FFR Market Information Feb- 20 | 17 Dec 2019 |
FFR Market Information Feb- 20 Table | 17 Dec 2019 |
FFR Market Information Mar -20 | 24 Jan 2020 |
FFR Market Information Mar -20 Table | 24 Jan 2020 |
FFR Market Information Apr-20 Table | 27 Feb 2020 |
FFR Market Information - Apr 20 | 27 Feb 2020 |
FFR Market Information - May 20 | 25 Mar 2020 |
FFR Market Information - May 20 Table | 25 Mar 2020 |
FFR Market Information - June 2020 | 28 Apr 2020 |
FFR pre and post tender
Name | Published Sort descending |
---|---|
Post Tender Report- TR126 June 2020 - Amended- EXT | 6 Jul 2020 |
Post Tender Report- TR127 July 2020 – EXT | 16 Jul 2020 |
Post Tender Report TR127 July 2020 - Amended | 30 Jul 2020 |
Post Tender Report TR128 August 2020 - EXT | 18 Aug 2020 |
Post Tender Report - TR129 September 2020- EXT | 16 Sep 2020 |
Post Tender Report - TR130 October 2020 - EXt | 16 Oct 2020 |
Post Tender Report - TR131 November 2020- EXT | 17 Nov 2020 |
Post Tender Report- TR132 December 2020- EXT | 16 Dec 2020 |
Post Tender Report TR133 January 2021- EXT | 19 Jan 2021 |
Post Tender Report TR134 February 2021- EXT | 16 Feb 2021 |