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_DATA_MAY17 | 28 Jun 2017 |
MBSS_DATA_May_2018 Excel | 11 Jul 2018 |
MBSS_DATA_NOV14 | 20 Jul 2015 |
MBSS_DATA_NOV15 | 11 Jan 2016 |
MBSS_DATA_NOV16 | 11 Jan 2017 |
MBSS_DATA_NOV2017 | 12 Jan 2018 |
MBSS_DATA_November_2018 excel | 24 Dec 2018 |
MBSS_DATA_OCT14 | 20 Jul 2015 |
MBSS_DATA_OCT15 | 25 Nov 2015 |
MBSS_DATA_OCT16 | 28 Nov 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 descending | Published |
---|---|
2018-02-03 excel | 6 Feb 2018 |
2018-02-03 pdf | 6 Feb 2018 |
2018-02-04 excel | 6 Feb 2018 |
2018-02-04 pdf | 6 Feb 2018 |
2018-02-05 excel | 6 Feb 2018 |
2018-02-05 pdf | 6 Feb 2018 |
2018-02-06 excel | 1 Mar 2018 |
2018-02-06 pdf | 12 Feb 2018 |
2018-02-07 excel | 8 Feb 2018 |
2018-02-07 pdf | 8 Feb 2018 |
STOR
Fast reserve
Name Sort descending | Published |
---|---|
Fast Reserve Webex August 19 | 23 Aug 2019 |
Fast Reserve Webex December 2019 | 20 Dec 2019 |
Fast Reserve Webex February 2019 | 6 Mar 2019 |
Fast Reserve Webex July 2019 | 24 Jul 2019 |
Fast Reserve Webex June 2019 | 26 Jun 2019 |
Fast Reserve Webex May 2019 | 24 May 2019 |
Fast Reserve Webex November 2019 | 25 Oct 2019 |
Fast Reserve Webex November 2019 | 22 Nov 2019 |
Fast Reserve Webex Sept 2019 | 25 Sep 2019 |
FR Market Information (December 17) | 25 Oct 2017 |
FFR market information reports
Name Sort descending | Published |
---|---|
FFR Market Information Dec-19 table | 24 Oct 2019 |
FFR Market Information Feb- 20 | 17 Dec 2019 |
FFR Market Information Feb- 20 Table | 17 Dec 2019 |
FFR Market Information Information - Nov 2020 | 24 Sep 2020 |
FFR Market Information Jan- 20 | 26 Nov 2019 |
FFR Market Information Jan- 20 Table | 26 Nov 2019 |
FFR Market Information Mar -20 | 24 Jan 2020 |
FFR Market Information Mar -20 Table | 24 Jan 2020 |
FFR Market Information Report (March-19) Table | 25 Jan 2019 |
FFR Market Information Report - March 2019 | 25 Jan 2019 |