Forecast volumes and costs
On this page you can see a historic data related to the operating margin (OPMR).
New forecast volume of reserve, forecast volume of frequency response required, annual weighting factors for STOR contracts, and forecasts of BSUoS charges will be published on the Data Portal on a regularly basis.
Frequency response requirement documents are now on the System balancing reports page.
You can find out more about the balancing services incentive scheme (BSIS) and balancing services use of system (BSUoS) on their respective pages.
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Frequency Response data
See historic documents related to the outturn for energy services we have used.
BSUoS forecast data
See historic daily BSUoS Forecast data.
From 1st March 2020, Daily BSUoS Forecast files will be published on our new National Grid ESO Data Portal.
Please see link below for the location:
https://data.nationalgrideso.com/balancing/balancing-services-use-of-system-bsuos-daily-forecast
| Name | Published Sort ascending |
|---|---|
| BSUoS Forecast 2018-11-05 | 5 Nov 2018 |
| BSUoS Forecast 2018-11-02 | 2 Nov 2018 |
| BSUoS Forecast 2018-11-01 | 1 Nov 2018 |
| BSUoS Forecast 2018-10-31 | 31 Oct 2018 |
| BSUoS Forecast 2018-10-30 | 30 Oct 2018 |
| BSUoS Forecast 2018-10-29 | 29 Oct 2018 |
| BSUoS Forecast 2018-10-28 | 28 Oct 2018 |
| BSUoS Forecast 2018-10-26 | 26 Oct 2018 |
| BSUoS Forecast 2018-10-25 | 25 Oct 2018 |
| BSUoS Forecast 2018-10-24 | 24 Oct 2018 |
Daily BSUoS Forecast 2017-18
| Name | Published Sort ascending |
|---|---|
| BSUoS Forecast 2018-02-28 | 28 Feb 2018 |
| BSUoS Forecast 2018-02-27 | 27 Feb 2018 |
| BSUoS Forecast 2018-02-25 | 25 Feb 2018 |
| BSUoS Forecast 2018-02-23 | 23 Feb 2018 |
| BSUoS Forecast 2018-02-22 | 22 Feb 2018 |
| BSUoS Forecast 2018-02-20 | 20 Feb 2018 |
| BSUoS Forecast 2018-02-19 | 19 Feb 2018 |
| BSUoS Forecast 2018-02-16 | 16 Feb 2018 |
| BSUoS Forecast 2018-02-15 | 15 Feb 2018 |
| BSUoS Forecast 2018-02-14 | 14 Feb 2018 |
Monthly BSUoS Forecast
From 1st March 2020, Monthly BSUoS Forecast files will be published on our new National Grid ESO Data Portal.
Please see link below for the location:
https://data.nationalgrideso.com/balancing/bsuos-monthly-forecast
| Name | Published Sort ascending |
|---|---|
| BSUoS outturn - December 2023 | 15 Jan 2024 |
| BSUoS Forecast Report - Feb 2024 | 15 Jan 2024 |
| BSUoS outturn - November 23 | 15 Dec 2023 |
| BSUoS Forecast Report - Jan 2024 | 15 Dec 2023 |
| BSUoS Forecast Report - Dec 2023 | 16 Nov 2023 |
| BSUoS Outturn Chart and Commentary October 2023 | 16 Nov 2023 |
| BSUoS Outturn Chart and Commentary September 2023 | 13 Oct 2023 |
| BSUoS Forecast Report - Nov 2023 | 13 Oct 2023 |
| BSUoS Outturn Chart and Commentary August 2023 | 15 Sep 2023 |
| BSUoS Forecast October 2023 | 15 Sep 2023 |
From 1st March 2020, Operational Planning Margin Requirement (OPMR) and wind availability files will be published on our new National Grid ESO Data Portal. Please scroll down to OPMR and Wind availability files for daily or weekly.
Please see link below for the location:
| Name | Published Sort ascending |
|---|---|
| Daily OPMR for Oct-2018 | 31 Oct 2018 |
| Wind Availability | 28 Sep 2018 |
| Daily OPMR for September 2018 | 28 Sep 2018 |
| Daily OPMR for August 2018 | 29 Aug 2018 |
| Weekly OPMR 2018 Jul_Dec | 23 Aug 2018 |
| Weekly Wind Availability | 10 Aug 2018 |
| Daily OPMR for July 2018 | 31 Jul 2018 |
| Wind Availability | 19 Jul 2018 |
| Daily OPMR for July 2018 | 19 Jul 2018 |
| Wind Availability | 13 Jul 2018 |
NRAPM forecast
The purpose of the Negative Reserve Active Power Margin (NRAPM) forecasting report is to indicate to the market a risk of NRAPM situation and therefore risk of Emergency Instructions.
From 1st March 2020, NRAPM (Negative Reserve Active Power Margin) forecast files will be published on our new National Grid ESO Data Portal.
Please see link below for the location:
https://data.nationalgrideso.com/generation/negative-reserve-active-power-margin-nrapm-forecast