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_JANUARY_2016 | 3 Mar 2016 |
MBSS_DATA_FEB16 | 24 Mar 2016 |
MBSS_FEBRUARY_2016 | 24 Mar 2016 |
MBSS_DATA_MAR16 | 26 Apr 2016 |
MBSS_MARCH_2016(1) | 11 May 2016 |
MBSS_DATA_APR16 | 27 May 2016 |
MBSS_APRIL_2016 | 27 May 2016 |
MBSS_DATA_MAY16 | 27 Jun 2016 |
MBSS_May_2016 | 27 Jun 2016 |
MBSS_DATA_JUN16 | 27 Jul 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 |
---|---|
2018-01-14 pdf | 16 Jan 2018 |
2018-01-14 excel | 16 Jan 2018 |
2018-01-15 excel | 17 Jan 2018 |
2018-01-15 pdf | 17 Jan 2018 |
2018-01-16 pdf | 18 Jan 2018 |
2018-01-16 excel | 18 Jan 2018 |
2018-01-17 excel | 19 Jan 2018 |
2018-01-18 pdf | 19 Jan 2018 |
2018-01-17 pdf | 19 Jan 2018 |
2018-01-18 excel | 19 Jan 2018 |
STOR
Name | Published Sort descending |
---|---|
STOR Market Information for TR26 STOR Runway_Appendix | 10 Jul 2017 |
STOR Market Information report for TR25 v.2 | 10 Jul 2017 |
STOR_Annual_Market_Report_2013_14 | 10 Jul 2017 |
STOR Market Information for TR25 - Appendix | 10 Jul 2017 |
STOR Fuel Type Analysis Summary (By Capacity) - Season 8_5 | 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 |
Fast reserve
Name | Published Sort descending |
---|---|
Fast Reserve Market Report July | 19 Jul 2018 |
Fast Reserve Post Assessment WebEx July-18 | 23 Jul 2018 |
Fast Reserve Market Information (September-18) | 25 Jul 2018 |
Fast Reserve Market Information Data (September-18) | 25 Jul 2018 |
Fast Reserve Market Report August 18 | 20 Aug 2018 |
Fast Reserve Market Information Data (October-18) | 24 Aug 2018 |
Fast Reserve Market Information (October-18) | 24 Aug 2018 |
Fast Reserve Market Report September 18 | 20 Sep 2018 |
Fast Reserve Post Assessment Webex August 18 | 24 Sep 2018 |
Fast Reserve Market Information Report (November 2018) | 26 Sep 2018 |
FFR market information reports
Name | Published Sort descending |
---|---|
FFR Market Information (Jun-18) | 26 Apr 2018 |
FFR Market Information (Jul-18) Table | 25 May 2018 |
FFR Market Information (Jul-18) | 25 May 2018 |
FFR Market Information (Aug-18) Table | 26 Jun 2018 |
FFR Market Information (Aug-18) | 26 Jun 2018 |
FFR Market Information (Sep-18) Table | 25 Jul 2018 |
FFR Market Information (Sep-18) | 25 Jul 2018 |
FFR Market Information (Oct-18) Table | 24 Aug 2018 |
FFR Market Information (Oct-18) | 24 Aug 2018 |
FFR Market Information (Nov-18) Table | 26 Sep 2018 |
FFR pre and post tender
Name | Published Sort descending |
---|---|
Post Tender Report-September 2017 - EXT amended 29_09_2017 | 29 Sep 2017 |
Industry Clarification Letter | 29 Sep 2017 |
Post Tender Report-October 2017 - EXT | 17 Oct 2017 |
Post Tender Report-October 2017 - EXT amended | 17 Oct 2017 |
Post Tender Report-November 2017 - EXT | 16 Nov 2017 |
Post Tender Report-December 2017 - EXT | 18 Dec 2017 |
Post Tender Report-January 2018 - TR97 EXT | 17 Jan 2018 |
Post Tender report - February 2018 TR98 - EXT | 16 Feb 2018 |
FFR -Post Tender Report - March 2018 TR99 - EXT | 16 Mar 2018 |
FFR Post Tender Report - April 2018 TR100 - EXT | 18 Apr 2018 |