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_AUG17 | 29 Sep 2017 |
MBSS_DATA_AUG16 | 29 Sep 2016 |
MBSS_DATA_AUG15 | 25 Sep 2015 |
MBSS_DATA_AUG14 | 20 Jul 2015 |
MBSS_DATA_April_2018 Excel | 15 Jun 2018 |
MBSS_DATA_APR17 | 1 Jun 2017 |
MBSS_DATA_APR16 | 27 May 2016 |
MBSS_DATA_APR15 | 20 Jul 2015 |
MBSS_Aug_2017 | 29 Sep 2017 |
MBSS_August_2018 pdf | 2 Oct 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 Sort ascending | Published |
---|---|
2020-01-19 EXCEL | 21 Jan 2020 |
2020-01-18 pdf | 20 Jan 2020 |
2020-01-18 excel | 20 Jan 2020 |
2020-01-17 pdf | 21 Jan 2020 |
2020-01-17 Excel | 21 Jan 2020 |
2020-01-16 PDF | 20 Jan 2020 |
2020-01-15 pdf | 17 Jan 2020 |
2020-01-15 excel | 17 Jan 2020 |
2020-01-14 PDF | 16 Jan 2020 |
2020-01-14 EXCEL | 16 Jan 2020 |
STOR
Fast reserve
Name Sort ascending | Published |
---|---|
Fast Reserve Market Information Data August 2019 | 26 Jun 2019 |
Fast Reserve Market Information Data (September-18) | 25 Jul 2018 |
Fast Reserve Market Information Data (October-18) | 24 Aug 2018 |
Fast Reserve Market Information Data (November 2018) | 26 Sep 2018 |
Fast Reserve Market Information Data (May 19) | 26 Mar 2019 |
Fast Reserve Market Information Data (May 18) | 26 Mar 2018 |
Fast Reserve Market Information Data (March 2019) | 25 Jan 2019 |
Fast Reserve Market Information Data (March 18) v2 | 20 Feb 2018 |
Fast Reserve Market Information Data (March 18) | 25 Jan 2018 |
Fast Reserve Market Information Data (June 19) - v2 | 25 Apr 2019 |
FFR market information reports
Name Sort ascending | Published |
---|---|
FFR Market Information (Jan 18) | 24 Nov 2017 |
FFR Market Information (Jan 17) Tables | 24 Nov 2016 |
FFR Market Information (Jan 17) | 24 Nov 2016 |
FFR Market Information (February 19) Table | 20 Dec 2018 |
FFR Market Information (February 19) | 20 Dec 2018 |
FFR Market Information (Feb 18) Table | 22 Dec 2017 |
FFR Market Information (Feb 18) | 22 Dec 2017 |
FFR Market Information (Feb 17) Tables | 23 Dec 2016 |
FFR Market Information (Feb 17) | 23 Dec 2016 |
FFR Market Information (Dec-18) Table | 24 Oct 2018 |