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 ascending | Published |
---|---|
MBSS_DATA_JAN16 | 25 Feb 2016 |
MBSS_DATA_JAN15 | 20 Jul 2015 |
MBSS_DATA_FEB18 | 29 Mar 2018 |
MBSS_DATA_FEB17 | 7 Apr 2017 |
MBSS_DATA_FEB16 | 24 Mar 2016 |
MBSS_DATA_December_2018 | 7 Feb 2019 |
MBSS_DATA_DEC17 | 2 Feb 2018 |
MBSS_DATA_DEC16 | 21 Feb 2017 |
MBSS_DATA_DEC15 | 28 Jan 2016 |
MBSS_DATA_August_2018 Excel | 2 Oct 2018 |
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 ascending | Published |
---|---|
2020-01-24 EXCEL | 27 Jan 2020 |
2020-01-23 PDF | 24 Jan 2020 |
2020-01-23 EXCEL | 24 Jan 2020 |
2020-01-22 PDF | 23 Jan 2020 |
2020-01-22 EXCEL | 23 Jan 2020 |
2020-01-21 PDF | 23 Jan 2020 |
2020-01-21 EXCEL | 23 Jan 2020 |
2020-01-20 PDF | 22 Jan 2020 |
2020-01-20 EXCEL | 22 Jan 2020 |
2020-01-19 PDF | 21 Jan 2020 |
STOR
Fast reserve
Name Sort ascending | Published |
---|---|
Fast Reserve Market Information Report (March 2019) | 25 Jan 2019 |
Fast Reserve Market Information Report (June 19) | 25 Apr 2019 |
Fast Reserve Market Information Report (Feb - 19) | 18 Dec 2018 |
Fast Reserve Market Information Report (December 2018) | 22 Oct 2018 |
Fast Reserve Market Information Data Sept 2019 | 24 Jul 2019 |
Fast Reserve Market Information Data Oct 2019 | 24 Oct 2019 |
Fast Reserve Market Information Data November 2019 | 25 Sep 2019 |
Fast Reserve Market Information Data July 2019 | 24 May 2019 |
Fast Reserve Market Information Data February 2020 | 20 Dec 2019 |
Fast Reserve Market Information Data December 2019 | 26 Nov 2019 |
FFR market information reports
Name Sort ascending | Published |
---|---|
FFR Market Information (July-19) Table | 28 May 2019 |
FFR Market Information (July 19) EXT | 28 May 2019 |
FFR Market Information (July 17) Tables | 24 May 2017 |
FFR Market Information (Jul-18) Table | 25 May 2018 |
FFR Market Information (Jul-18) | 25 May 2018 |
FFR Market Information (Jul 17) | 24 May 2017 |
FFR Market Information (Jul 16) | 26 May 2016 |
FFR Market Information (January 19) Table | 26 Nov 2018 |
FFR Market Information (January 19) | 26 Nov 2018 |
FFR Market Information (Jan 18) Table | 24 Nov 2017 |
FFR pre and post tender
Name Sort ascending | Published |
---|---|
FFR Post Tender Report TR104 - August 18 - Ext | 16 Aug 2018 |
FFR Post Tender Report TR103 - July - EXT | 17 Jul 2018 |
FFR Post Tender Report TR102 - June - EXT | 18 Jun 2018 |
FFR Post Tender Report -MAY 2017 -EXT | 17 May 2017 |
FFR Post Tender Report -APRIL 2017 -V3 EXT | 20 Apr 2017 |
FFR Post Tender Report -APRIL 2017 -V2 EXT | 20 Apr 2017 |
FFR Post Tender Report - TR106 October 2018 EXT | 16 Oct 2018 |
FFR Post Tender Report - May 2018 TR101- EXT | 17 May 2018 |
FFR Post Tender Report - April 2018 TR100 - EXT | 18 Apr 2018 |
FFR Post Tender Assessment Report | 16 Jun 2016 |