System balancing reports
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 NESO Data Portal.
Please see link below for the location:
| Name | Published Sort ascending |
|---|---|
| MBSS_DATA_FEB16 | 24 Mar 2016 |
| MBSS_FEBRUARY_2016 | 24 Mar 2016 |
| MBSS_JANUARY_2016 | 3 Mar 2016 |
| MBSS_DECEMBER_2015 | 25 Feb 2016 |
| MBSS_DATA_JAN16 | 25 Feb 2016 |
| MBSS_DATA_DEC15 | 28 Jan 2016 |
| MBSS_NOVEMBER_2015 | 13 Jan 2016 |
| MBSS_DATA_NOV15 | 11 Jan 2016 |
| MBSS_DATA_OCT15 | 25 Nov 2015 |
| MBSS_October_2015 | 25 Nov 2015 |
Past MBSS packs
Past MBSS packs
From 1st March 2020, Daily balancing costs (BSUoS) files will be published on our new NESO Data Portal.
Please see link below for the daily historic outturn & forecast file:
https://data.nationalenergyso.com/balancing/bsuos-monthly-cost
Please see link below for the daily balancing costs data files:
https://data.nationalenergyso.com/balancing/daily-balancing-costs-balancing-services-use-of-system
Please see link below for the daily balancing costs report files:
| Name | Published Sort ascending |
|---|---|
| 2020-01-09 EXCEL | 10 Jan 2020 |
| 2020-01-04 pdf | 10 Jan 2020 |
| 2020-01-08 pdf | 10 Jan 2020 |
| 2020-01-09 PDF | 10 Jan 2020 |
| 2020-01-07 excel | 9 Jan 2020 |
| 2020-01-07 pdf | 9 Jan 2020 |
| 2020-01-06 EXCEL | 8 Jan 2020 |
| 2020-01-05 excel | 8 Jan 2020 |
| 2020-01-05 pdf | 8 Jan 2020 |
| 2020-01-06 PDF | 8 Jan 2020 |
STOR
Fast reserve
| Name | Published Sort ascending |
|---|---|
| FR Market Information (March 18) | 25 Jan 2018 |
| January Market Report V2 | 23 Jan 2018 |
| Market Report January 2018 | 19 Jan 2018 |
| Fast Reserve Market Information Data (February 18) | 22 Dec 2017 |
| FR Market Information (February 18) | 22 Dec 2017 |
| 11_Market Report December 2017 | 20 Dec 2017 |
| FR Market Information (January 18) | 24 Nov 2017 |
| Fast Reserve Market Information Data (January 18) | 24 Nov 2017 |
| 11_Market Report November 2017 | 20 Nov 2017 |
| FR Market Information (December 17) | 25 Oct 2017 |
FFR market information reports
| Name | Published Sort ascending |
|---|---|
| FFR tender update - Energy Response Payments | 27 Sep 2018 |
| FFR Market Information (Nov-18) Table | 26 Sep 2018 |
| FFR Market Information (November 2018) | 26 Sep 2018 |
| FFR Market Information (Oct-18) Table | 24 Aug 2018 |
| FFR Market Information (Oct-18) | 24 Aug 2018 |
| FFR Market Information (Sep-18) Table | 25 Jul 2018 |
| FFR Market Information (Sep-18) | 25 Jul 2018 |
| FFR Market Information (Aug-18) Table | 26 Jun 2018 |
| FFR Market Information (Aug-18) | 26 Jun 2018 |
| FFR Market Information (Jul-18) Table | 25 May 2018 |