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_OCT2017 | 1 Dec 2017 |
MBSS_DATA_October_2018 excel | 27 Nov 2018 |
MBSS_DATA_SEP14 | 20 Jul 2015 |
MBSS_DATA_SEP15 | 30 Oct 2015 |
MBSS_DATA_SEP16 | 28 Oct 2016 |
MBSS_DATA_SEP17 | 26 Oct 2017 |
MBSS_DATA_September_2018 Excel | 30 Oct 2018 |
MBSS_DECEMBER_2015 | 25 Feb 2016 |
MBSS_December_2016 | 21 Feb 2017 |
MBSS_December_2018 | 7 Feb 2019 |
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 |
---|---|
2018-02-08 excel | 9 Feb 2018 |
2018-02-08 pdf | 9 Feb 2018 |
2018-02-09 excel | 13 Feb 2018 |
2018-02-09 pdf | 13 Feb 2018 |
2018-02-10 excel | 12 Feb 2018 |
2018-02-10 pdf | 12 Feb 2018 |
2018-02-11 excel | 1 Mar 2018 |
2018-02-11 pdf | 13 Feb 2018 |
2018-02-12 excel | 16 Feb 2018 |
2018-02-12 pdf | 15 Feb 2018 |
STOR
Fast reserve
Name Sort descending | Published |
---|---|
FR Market Information (February 18) | 22 Dec 2017 |
FR Market Information (January 18) | 24 Nov 2017 |
FR Market Information (July 17) | 24 May 2017 |
FR Market Information (March 18) | 25 Jan 2018 |
FR Market Information (November 17) | 26 Sep 2017 |
FR Market Information (October 17) | 24 Aug 2017 |
FR Market Information (September 17) | 26 Jul 2017 |
FR Market Information Apr19 | 30 Apr 2020 |
FR Market Information April20 | 8 Apr 2020 |
FR Market Information April21 | 12 Feb 2021 |
FFR market information reports
Name Sort descending | Published |
---|---|
FFR Market Information Report - March 2021- table | 27 Jan 2021 |
FFR Market Information Report -Dec 2020- table | 27 Oct 2020 |
FFR Market Information Report Oct 2020 | 25 Aug 2020 |
FFR Market Information Report Oct 2020 Table | 25 Aug 2020 |
FFR Market Information Report- Dec 2020 | 27 Oct 2020 |
FFR Market Information- February 2021- table | 21 Dec 2020 |
FFR Market Information- Jan 2021 | 25 Nov 2020 |
FFR Market Information- Jan 2021- Table | 25 Nov 2020 |
FFR tender update - Energy Response Payments | 27 Sep 2018 |
FFR Tender Update - TR111 update | 14 Feb 2019 |