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 January 2020 | 28 Feb 2020 |
MBSS January 2020 V2 | 9 Mar 2020 |
MBSS July 2019 | 30 Aug 2019 |
MBSS JUNE 2014 | 20 Jul 2015 |
MBSS June 2019 | 31 Jul 2019 |
MBSS March 2018 | 4 May 2018 |
MBSS March 2019 pdf | 2 May 2019 |
MBSS MAY 2014 | 20 Jul 2015 |
MBSS May 2019 | 30 Jun 2019 |
MBSS November 2019 | 31 Dec 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 |
---|---|
2018-01-07 pdf | 9 Jan 2018 |
2018-01-08 excel | 10 Jan 2018 |
2018-01-08 pdf | 10 Jan 2018 |
2018-01-09 excel | 11 Jan 2018 |
2018-01-09 pdf | 11 Jan 2018 |
2018-01-10 excel | 12 Jan 2018 |
2018-01-10 pdf | 12 Jan 2018 |
2018-01-11 excel | 12 Jan 2018 |
2018-01-11 pdf | 12 Jan 2018 |
2018-01-12 excel | 15 Jan 2018 |
STOR
Name Sort descending | Published |
---|---|
STOR TR30 MIR - v2 | 18 Oct 2016 |
STOR TR30 MIR - v3 | 3 Nov 2016 |
STOR TR31 MIR | 24 Mar 2017 |
STOR TR31 MIR - v2 | 6 Apr 2017 |
STOR TR32 MIR | 28 Jul 2017 |
STOR TR33 MIR | 20 Oct 2017 |
STOR TR34 MIR | 23 Mar 2018 |
STOR TR35 MIR | 27 Jul 2018 |
STOR TR36 MIR | 12 Oct 2018 |
STOR TR37 MIR | 22 Mar 2019 |
Fast reserve
Name Sort descending | Published |
---|---|
Fast Reserve Market Information Data (March 18) v2 | 20 Feb 2018 |
Fast Reserve Market Information Data (March 2019) | 25 Jan 2019 |
Fast Reserve Market Information Data (May 18) | 26 Mar 2018 |
Fast Reserve Market Information Data (May 19) | 26 Mar 2019 |
Fast Reserve Market Information Data (November 2018) | 26 Sep 2018 |
Fast Reserve Market Information Data (October-18) | 24 Aug 2018 |
Fast Reserve Market Information Data (September-18) | 25 Jul 2018 |
Fast Reserve Market Information Data August 2019 | 26 Jun 2019 |
Fast Reserve Market Information Data December 2019 | 26 Nov 2019 |
Fast Reserve Market Information Data February 2020 | 20 Dec 2019 |
FFR market information reports
Name Sort descending | Published |
---|---|
FFR Market Information (January 19) Table | 26 Nov 2018 |
FFR Market Information (Jul 16) | 26 May 2016 |
FFR Market Information (Jul 17) | 24 May 2017 |
FFR Market Information (Jul-18) | 25 May 2018 |
FFR Market Information (Jul-18) Table | 25 May 2018 |
FFR Market Information (July 17) Tables | 24 May 2017 |
FFR Market Information (July 19) EXT | 28 May 2019 |
FFR Market Information (July-19) Table | 28 May 2019 |
FFR Market Information (Jun-18) | 26 Apr 2018 |
FFR Market Information (Jun-18) Table | 26 Apr 2018 |
FFR pre and post tender
Name Sort descending | Published |
---|---|
Post assessment Tender Report May 2015 | 19 May 2015 |
Post Assessment Tender Report May 2016 | 18 May 2016 |
Post Assessment Tender Report Nov 2016 | 16 Nov 2016 |
Post Assessment Tender Report November 2015 | 17 Nov 2015 |
Post Assessment Tender Report Oct 2016 | 18 Oct 2016 |
Post Assessment Tender Report October 2015 | 16 Oct 2015 |
Post Assessment Tender Report Sept 2016 | 16 Sep 2016 |
Post Assessment Tender Report September 2015 | 15 Sep 2015 |
Post Tender report - TR112 April 2019 - EXT | 16 Apr 2019 |
Post Tender report - TR113 May 2019 - EXT | 16 May 2019 |