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_NOVEMBER_2014_v2 | 20 Jul 2015 |
MBSS_OCTOBER_2014 | 20 Jul 2015 |
MBSS_SEPTEMBER_2014 | 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_MAY_2015 | 20 Jul 2015 |
MBSS_DATA_APR15 | 20 Jul 2015 |
MBSS_DATA_MAR15 | 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 | Published Sort descending |
---|---|
2017-12-29 pdf | 5 Jan 2018 |
2018-01-01 pdf | 5 Jan 2018 |
2017-12-26 excel | 5 Jan 2018 |
2017-12-29 excel | 5 Jan 2018 |
2018-01-01 excel | 5 Jan 2018 |
2017-12-28 pdf | 5 Jan 2018 |
2018-01-04 pdf | 5 Jan 2018 |
2018-01-04 excel | 5 Jan 2018 |
2018-01-05 pdf | 8 Jan 2018 |
2018-01-05 excel | 8 Jan 2018 |
STOR
Name | Published Sort descending |
---|---|
STOR TR30 MIR - v3 | 3 Nov 2016 |
TR31 and Runway Appendix | 24 Feb 2017 |
TR31_MIR_tables_and_charts | 24 Mar 2017 |
STOR TR31 MIR | 24 Mar 2017 |
STOR TR31 MIR - v2 | 6 Apr 2017 |
TR32 and Runway Appendix - EXT | 7 Jul 2017 |
STOR TR28 MIR V_3 | 10 Jul 2017 |
TR28_MIR_tables_and_charts_V_2 | 10 Jul 2017 |
TR28_MIR_tables_and_charts | 10 Jul 2017 |
TR28 STOR Runway Appendix | 10 Jul 2017 |
Fast reserve
Name | Published Sort descending |
---|---|
FR Market Information (January 18) | 24 Nov 2017 |
Fast Reserve Market Information Data (January 18) | 24 Nov 2017 |
11_Market Report December 2017 | 20 Dec 2017 |
Fast Reserve Market Information Data (February 18) | 22 Dec 2017 |
FR Market Information (February 18) | 22 Dec 2017 |
Market Report January 2018 | 19 Jan 2018 |
January Market Report V2 | 23 Jan 2018 |
Fast Reserve Market Information Data (March 18) | 25 Jan 2018 |
FR Market Information (March 18) | 25 Jan 2018 |
Fast Reserve Market Information Data (March 18) v2 | 20 Feb 2018 |
FFR market information reports
Name | Published Sort descending |
---|---|
FFR Market Information (Dec 16) | 26 Oct 2016 |
FFR Market Information (Jan 17) | 24 Nov 2016 |
FFR Market Information (Jan 17) Tables | 24 Nov 2016 |
FFR Market Information (Feb 17) | 23 Dec 2016 |
FFR Market Information (Feb 17) Tables | 23 Dec 2016 |
FFR Market Information (July 17) Tables | 24 May 2017 |
FFR Market Information (Jul 17) | 24 May 2017 |
FFR Market Information (Aug 17) Tables | 22 Jun 2017 |
FFR Market Information (Aug 17) | 22 Jun 2017 |
FFR Market Information (Sept 17) Table | 26 Jul 2017 |
FFR pre and post tender
Name | Published Sort descending |
---|---|
Post Assessment Tender Report October 2015 | 16 Oct 2015 |
Post Assessment Tender Report November 2015 | 17 Nov 2015 |
Post Assessment Tender Report Dec 2015 | 23 Dec 2015 |
Post Assessment Tender Report Jan 16(1) | 22 Jan 2016 |
Post Assessment Tender Report Feb 2016 | 16 Feb 2016 |
Post Assessment Tender Report March 2016 | 16 Mar 2016 |
Post Assessment Tender Report April 2016 | 18 Apr 2016 |
Post Assessment Tender Report May 2016 | 18 May 2016 |
FFR Post Tender Assessment Report | 16 Jun 2016 |
Post Assessment Tender Report July 2016 | 18 Jul 2016 |