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 | Published Sort descending |
---|---|
MBSS_DATA_SEP14 | 20 Jul 2015 |
MBSS_DATA_AUG14 | 20 Jul 2015 |
MBSS JUNE 2014 | 20 Jul 2015 |
MBSS DATA MAY14 | 20 Jul 2015 |
MBSS APRIL 2014 | 20 Jul 2015 |
MBSS_June_2015 | 27 Jul 2015 |
MBSS_DATA_JUN15 | 27 Jul 2015 |
MBSS_July_2015 | 2 Sep 2015 |
MBSS_DATA_JUL15 | 2 Sep 2015 |
MBSS_DATA_AUG15 | 25 Sep 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 | Published Sort descending |
---|---|
2018-01-06 excel | 9 Jan 2018 |
2018-01-03 excel | 9 Jan 2018 |
2017-12-31 pdf | 9 Jan 2018 |
2018-01-06 pdf | 9 Jan 2018 |
2018-01-07 excel | 9 Jan 2018 |
2017-12-31 excel | 9 Jan 2018 |
2018-01-03 pdf | 9 Jan 2018 |
2018-01-07 pdf | 9 Jan 2018 |
2018-01-08 pdf | 10 Jan 2018 |
2018-01-08 excel | 10 Jan 2018 |
STOR
Name | Published Sort descending |
---|---|
STOR Annual Market Report 2014_2015 Data | 10 Jul 2017 |
TR27_MIR_tables_and_charts_updated v_2 | 10 Jul 2017 |
TR27 STOR Runway Appendix updated v_2 | 10 Jul 2017 |
STOR TR26 MIR | 10 Jul 2017 |
STOR Market Information for TR26_Appendix V2 | 10 Jul 2017 |
STOR Carbon Impact Analysis Report | 10 Jul 2017 |
STOR Market Information for TR25_Tables_and_Charts v.2 | 10 Jul 2017 |
STOR_Annual_Market_Report_2013_14_Data | 10 Jul 2017 |
STOR Market Information for TR25 STOR Runway - Appendix | 10 Jul 2017 |
STOR Fuel Type Analysis Summary (By Capacity) - Season 8 3 | 10 Jul 2017 |
Fast reserve
Name | Published Sort descending |
---|---|
Fast Reserve Market Information Data (January 18) v2 | 20 Feb 2018 |
Fast Reserve Market Report - Feb 2018 | 20 Feb 2018 |
Fast Reserve Market Information Data (February 18)v2 | 20 Feb 2018 |
Fast Reserve Market Information Data (April 18) | 26 Feb 2018 |
Fast Reserve Market Information (April-18) | 26 Feb 2018 |
11_Market Report March 2018 | 20 Mar 2018 |
Fast Reserve Market Information (May-18) | 26 Mar 2018 |
Fast Reserve Market Information Data (May 18) | 26 Mar 2018 |
Fast Reserve Market Report April 2018 | 20 Apr 2018 |
Fast Reserve Market Information Data (June 18) | 26 Apr 2018 |
FFR market information reports
Name | Published Sort descending |
---|---|
FFR Market Information (Sept 17) | 26 Jul 2017 |
FFR Market Information (Oct 17) Table | 24 Aug 2017 |
FFR Market Information (Oct 17) | 24 Aug 2017 |
FFR Market Information (Nov 17) Table | 27 Sep 2017 |
FFR Market Information (Nov 17) | 27 Sep 2017 |
FFR Market Information (Dec 17) Table | 25 Oct 2017 |
FFR Market Information (Dec 17) | 25 Oct 2017 |
FFR Market Information (Jan 18) Table | 24 Nov 2017 |
FFR Market Information (Jan 18) | 24 Nov 2017 |
FFR Market Information (Feb 18) Table | 22 Dec 2017 |
FFR pre and post tender
Name | Published Sort descending |
---|---|
Post Assessment Tender Market Report Aug 2016 | 16 Aug 2016 |
Post Assessment Tender Report Sept 2016 | 16 Sep 2016 |
Post Assessment Tender Report Oct 2016 | 18 Oct 2016 |
Post Assessment Tender Report Nov 2016 | 16 Nov 2016 |
Post Tender Report December 2016 | 16 Dec 2016 |
Post Tender Report January 2017 - Amended EXT | 18 Jan 2017 |
Post Tender Report January 2017 | 18 Jan 2017 |
Post Tender Report FEBRUARY 2017 EXT | 16 Feb 2017 |
Post Tender Report MARCH 2017 EXT | 16 Mar 2017 |
FFR Post Tender Report -APRIL 2017 -V3 EXT | 20 Apr 2017 |