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 October 2019 | 29 Nov 2019 |
MBSS November 2019 V3 | 22 Jan 2020 |
MBSS November 2019 V2 | 8 Jan 2020 |
MBSS November 2019 | 31 Dec 2019 |
MBSS May 2019 | 30 Jun 2019 |
MBSS MAY 2014 | 20 Jul 2015 |
MBSS March 2019 pdf | 2 May 2019 |
MBSS March 2018 | 4 May 2018 |
MBSS June 2019 | 31 Jul 2019 |
MBSS JUNE 2014 | 20 Jul 2015 |
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 |
---|---|
2020-01-08 pdf | 10 Jan 2020 |
2020-01-08 Excel | 10 Jan 2020 |
2020-01-07 pdf | 9 Jan 2020 |
2020-01-07 excel | 9 Jan 2020 |
2020-01-06 PDF | 8 Jan 2020 |
2020-01-06 EXCEL | 8 Jan 2020 |
2020-01-05 pdf | 8 Jan 2020 |
2020-01-05 excel | 8 Jan 2020 |
2020-01-04 pdf | 10 Jan 2020 |
2020-01-04 Excel | 10 Jan 2020 |
STOR
Fast reserve
Name Sort ascending | Published |
---|---|
Fast Reserve Market Information (October-18) | 24 Aug 2018 |
Fast Reserve Market Information (May-18) | 26 Mar 2018 |
Fast Reserve Market Information (June-18) | 26 Apr 2018 |
Fast Reserve Market Information (July-18) | 25 May 2018 |
Fast Reserve Market Information (January 2019) | 19 Nov 2018 |
Fast Reserve Market Information (February 2019) | 12 Feb 2019 |
Fast Reserve Market Information (August-18) | 22 Jun 2018 |
Fast Reserve Market Information (April-18) | 26 Feb 2018 |
Fast Reserve Market Information (April 2019) | 22 Feb 2019 |
Fast Reserve 2 week tender requirement | 22 Jun 2018 |
FFR market information reports
Name Sort ascending | Published |
---|---|
FFR Market Information (Aug 17) | 22 Jun 2017 |
FFR Market Information (Aug 16) Tables | 24 Jun 2016 |
FFR Market Information (Aug 16) | 24 Jun 2016 |
FFR Market Information (Apr-19) Table | 26 Feb 2019 |
FFR Market Information (Apr-18) | 26 Feb 2018 |
FFR Market Information (Apr 19) | 26 Feb 2019 |
FFR Market Information (Apr 18) Table | 26 Feb 2018 |
Anonymised EBR consultation responses - Firm Frequency Response | 20 Jan 2023 |