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_August_2015 | 25 Sep 2015 |
MBSS_DATA_SEP15 | 30 Oct 2015 |
MBSS_September_2015 | 30 Oct 2015 |
MBSS_DATA_OCT15 | 25 Nov 2015 |
MBSS_October_2015 | 25 Nov 2015 |
MBSS_DATA_NOV15 | 11 Jan 2016 |
MBSS_NOVEMBER_2015 | 13 Jan 2016 |
MBSS_DATA_DEC15 | 28 Jan 2016 |
MBSS_DECEMBER_2015 | 25 Feb 2016 |
MBSS_DATA_JAN16 | 25 Feb 2016 |
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 |
---|---|
2018-01-09 pdf | 11 Jan 2018 |
2018-01-09 excel | 11 Jan 2018 |
2018-01-10 pdf | 12 Jan 2018 |
2018-01-10 excel | 12 Jan 2018 |
2018-01-11 pdf | 12 Jan 2018 |
2018-01-11 excel | 12 Jan 2018 |
2018-01-12 excel | 15 Jan 2018 |
2018-01-13 excel | 15 Jan 2018 |
2018-01-12 pdf | 15 Jan 2018 |
2018-01-13 pdf | 15 Jan 2018 |
STOR
Name | Published Sort descending |
---|---|
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 |
STOR Markert Information for TR24_Amended | 10 Jul 2017 |
STOR Market Information for TR23 - Appendix(1) | 10 Jul 2017 |
STOR Market Information for TR23 - Appendix | 10 Jul 2017 |
STOR End of Year Report 2012_13 | 10 Jul 2017 |
TR28_MIR_tables_and_charts_V_3 | 10 Jul 2017 |
STOR TR28 MIR V_2 | 10 Jul 2017 |
STOR TR28 MIR | 10 Jul 2017 |
Fast reserve
Name | Published Sort descending |
---|---|
Fast Reserve Market Information (June-18) | 26 Apr 2018 |
Fast Reserve Market Report May 18 | 21 May 2018 |
Fast Reserve Market Information (July-18) | 25 May 2018 |
Fast Reserve Market Information Data (July 18) | 25 May 2018 |
Fast Reserve Post Assessment WebEx May-18 | 7 Jun 2018 |
Fast Reserve Market Report June 18 | 20 Jun 2018 |
Fast Reserve 2 week tender requirement | 22 Jun 2018 |
Fast Reserve Market Information Data (August-18) | 22 Jun 2018 |
Fast Reserve Market Information (August-18) | 22 Jun 2018 |
Fast Reserve Post Assessment WebEx June-18 | 19 Jul 2018 |
FFR market information reports
Name | Published Sort descending |
---|---|
FFR Market Information (Feb 18) | 22 Dec 2017 |
FFR Market Information (Mar 18) Table | 25 Jan 2018 |
FFR Market Information (Mar-18) | 25 Jan 2018 |
FFR Market Information (Mar 18) Table - Update | 30 Jan 2018 |
FFR Market Information (Mar-18) - Update | 30 Jan 2018 |
FFR Market Information (Apr 18) Table | 26 Feb 2018 |
FFR Market Information (Apr-18) | 26 Feb 2018 |
FFR Market Information (May 18) Table | 26 Mar 2018 |
FFR Market Information (May-18) | 26 Mar 2018 |
FFR Market Information (Jun-18) Table | 26 Apr 2018 |
FFR pre and post tender
Name | Published Sort descending |
---|---|
FFR Post Tender Report -APRIL 2017 -V2 EXT | 20 Apr 2017 |
FFR Post Tender Report -MAY 2017 -EXT | 17 May 2017 |
Post Tender Report - June 2017 - EXT | 16 Jun 2017 |
Post tender Report - July 2017- EXT | 18 Jul 2017 |
Post Tender Report - June 2017 - EXT Amended 13.07.17 | 18 Jul 2017 |
Post tender Report - July 2017- EXT amended 25.07.17 | 25 Jul 2017 |
Post Tender Report - June 2017 - EXT Amended 21.07.17 | 25 Jul 2017 |
Post Tender Report- August 17- EXT | 16 Aug 2017 |
Post Tender Report-September 2017 - EXT | 19 Sep 2017 |
Post Tender Report-September 2017 - EXT amended 19.09.2017 | 19 Sep 2017 |