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 2019 pdf | 8 Mar 2019 |
MBSS Data February 2019 | 27 Mar 2019 |
MBSS February 2019 pdf | 27 Mar 2019 |
Investor_Timeline | 29 Mar 2019 |
MBSS March 2019 pdf | 2 May 2019 |
MBSS Data March 2019 excel | 7 May 2019 |
MBSS April 2019 pdf | 31 May 2019 |
MBSS Data April 2019 Excel | 31 May 2019 |
MBSS April 2019 V2 | 11 Jun 2019 |
MBSS Data April 2019 V2 | 11 Jun 2019 |
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 |
---|---|
2018-02-20 pdf | 23 Feb 2018 |
2018-02-22 pdf | 23 Feb 2018 |
2018-02-21 pdf | 23 Feb 2018 |
2018-02-20 excel | 23 Feb 2018 |
2018-02-22 excel | 23 Feb 2018 |
2018-02-21 excel | 23 Feb 2018 |
2018-02-26 excel | 27 Feb 2018 |
2018-02-23 pdf | 27 Feb 2018 |
2018-02-24 pdf | 27 Feb 2018 |
2018-02-25 pdf | 27 Feb 2018 |
STOR
Fast reserve
Name | Published Sort descending |
---|---|
FR Market Information November20 | 24 Sep 2020 |
FR Market Information December20 | 16 Oct 2020 |
FR Market Information January21 | 16 Nov 2020 |
FR Market Information February21 | 15 Dec 2020 |
FR Market Information March21 | 18 Jan 2021 |
FR Market Information April21 | 12 Feb 2021 |
FR Market Information May21 | 15 Mar 2021 |
FR Market Information June21 | 20 Apr 2021 |
FFR market information reports