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 2018-09-24 | 24 Sep 2018 |
| BSUoS Forecast 2018-09-23 | 23 Sep 2018 |
| BSUoS Forecast 2018-09-22 | 23 Sep 2018 |
| BSUoS Forecast 2018-09-21 | 21 Sep 2018 |
| BSUoS Forecast 2018-09-20 | 20 Sep 2018 |
| BSUoS Forecast 2018-09-19 | 19 Sep 2018 |
| BSUoS Forecast 2018-09-18 | 18 Sep 2018 |
| BSUoS Forecast 2018-09-17 | 17 Sep 2018 |
| BSUoS Forecast 2018-09-17 | 17 Sep 2018 |
| BSUoS Forecast 2018-09-15 | 15 Sep 2018 |
Daily BSUoS Forecast 2017-18
| Name | Published Sort ascending |
|---|---|
| BSUoS Forecast 2018-01-17 | 17 Jan 2018 |
| BSUoS Forecast 2018-01-16 | 16 Jan 2018 |
| BSUoS Forecast 2018-01-15 | 15 Jan 2018 |
| BSUoS Forcast 2018-01-14 | 14 Jan 2018 |
| BSUoS Forcast 2018-01-13 | 13 Jan 2018 |
| BSUoS Forecast 2018-01-12 | 12 Jan 2018 |
| BSUoS Forcast 2018-01-11 | 11 Jan 2018 |
| BSUoS Forecast 2018-01-10 | 10 Jan 2018 |
| BSUoS Forecast 2018-01-09 | 9 Jan 2018 |
| BSUoS Forecast 2018-01-08 | 8 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 Forecast December 2022 | 1 Nov 2022 |
| BSUoS Forecast November 2022 | 1 Oct 2022 |
| BSUos Outturn Chart and Commentary September 2022 | 1 Oct 2022 |
| BSUos Outturn Chart and Commentary August 2022 | 1 Sep 2022 |
| BSUos Forecast October 2022 | 1 Sep 2022 |
| Revised Monthly BSUoS Forecast Summary September 2022 | 1 Aug 2022 |
| BSUoS Forecast September 2022 | 1 Aug 2022 |
| BSUos Outturn Chart and Commentary July 2022 | 1 Aug 2022 |
| BSUoS Forecast August 2022 | 1 Jul 2022 |
| BSUos Outturn Chart and Commentary June 2022 | 1 Jul 2022 |
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 Dec-2017 | 29 Dec 2017 |
| Weekly OPMR 2017 Jul_Dec | 28 Dec 2017 |
| Daily OPMR for Nov-2017 | 30 Nov 2017 |
| Daily OPMR for Oct-2017 | 31 Oct 2017 |
| Daily OPMR for Sep-2017 | 29 Sep 2017 |
| Daily OPMR for Aug-2017 | 31 Aug 2017 |
| Daily OPMR for Jul-2017 | 31 Jul 2017 |
| Daily OPMR for Jun-2017 | 30 Jun 2017 |
| Weekly OPMR 2016 Jul_Dec | 7 Jul 2016 |
| Daily OPMR for Oct-2016 | 10 Mar 2016 |
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