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 2018-10-23 | 23 Oct 2018 |
| BSUoS Forecast 2018-10-19 | 19 Oct 2018 |
| BSUoS Forecast 2018-10-18 | 18 Oct 2018 |
| BSUoS Forecast 2018-10-17 | 17 Oct 2018 |
| BSUoS Forecast 2018-10-15 | 15 Oct 2018 |
| BSUoS Forecast 2018-10-13 | 13 Oct 2018 |
| BSUoS Forecast 2018-10-12 | 12 Oct 2018 |
| BSUoS Forecast 2018-10-10 | 10 Oct 2018 |
| BSUoS Forecast 2018-10-09 | 9 Oct 2018 |
| BSUoS Forecast 2018-10-08 | 8 Oct 2018 |
Daily BSUoS Forecast 2017-18
| Name | Published Sort ascending |
|---|---|
| BSUoS Forecast 2018-02-13 | 13 Feb 2018 |
| BSUoS Forecast 2018-02-12 | 12 Feb 2018 |
| BSUoS Forecast 2018-02-09 | 9 Feb 2018 |
| BSUoS Forecast 2018-02-08 | 8 Feb 2018 |
| BSUoS Forecast 2018-02-07 | 7 Feb 2018 |
| BSUoS Forecast 2018-02-06 | 6 Feb 2018 |
| BSUoS Forecast 2018-02-05 | 5 Feb 2018 |
| BSUoS Forecast 2018-02-02 | 2 Feb 2018 |
| BSUoS Forecast 2018-02-01 | 1 Feb 2018 |
| BSUoS Forecast 2018-01-31 | 31 Jan 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 Chart and Commentary July 2023-Revised | 29 Aug 2023 |
| BSUoS Forecast September 2023 | 15 Aug 2023 |
| BSUoS Outturn Chart and Commentary July 2023 | 15 Aug 2023 |
| BSUoS Outturn Chart and Commentary June 2023 | 1 Jul 2023 |
| BSUoS Forecast August 2023 | 1 Jul 2023 |
| BSUoS Outturn Chart and Commentary May 2023 | 1 Jun 2023 |
| BSUoS Forecast - Jul 2023 | 1 Jun 2023 |
| BSUoS Forecast June 23 | 1 May 2023 |
| BSUoS Outturn Chart and Commentary April 2023 | 1 May 2023 |
| BSUoS Outturn Chart and Commentary March 2023 | 1 Apr 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 July 2018 | 13 Jul 2018 |
| Daily OPMR for June 2018 | 29 Jun 2018 |
| Weekly OPMR 2018 Jan_Jun | 28 Jun 2018 |
| Daily OPMR for May 2018 | 31 May 2018 |
| Wind Availability | 25 May 2018 |
| Wind Availability | 21 May 2018 |
| Wind Availability | 18 May 2018 |
| Wind Availability | 11 May 2018 |
| Wind Availability | 10 May 2018 |
| Wind Availability | 4 May 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