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 2018-09-14 | 14 Sep 2018 |
| BSUoS Forecast 2018-09-13 | 13 Sep 2018 |
| BSUoS Forecast 2018-09-10 | 10 Sep 2018 |
| BSUoS Forecast 2018-09-06 | 6 Sep 2018 |
| BSUoS Forecast 2018-08-31 | 31 Aug 2018 |
| BSUoS Forecast 2018-08-28 | 28 Aug 2018 |
| BSUoS Forecast 2018-08-24 | 24 Aug 2018 |
| BSUoS Forecast 2018-08-23 | 23 Aug 2018 |
| BSUoS Forecast 2018-08-22 | 22 Aug 2018 |
| BSUoS Forecast 2018-08-21 | 21 Aug 2018 |
Daily BSUoS Forecast 2017-18
| Name | Published Sort ascending |
|---|---|
| BSUoS Forecast 2018-01-05 | 5 Jan 2018 |
| BSUoS Forecast 2018-01-04 | 4 Jan 2018 |
| BSUoS Forecast 2018-01-03 | 3 Jan 2018 |
| BSUoS Forecast 2018-01-02 | 2 Jan 2018 |
| BSUoS Forecast 2017-12-29 | 29 Dec 2017 |
| BSUoS Forecast 2017-12-28 | 28 Dec 2017 |
| BSUoS Forecast 2017-12-22 | 22 Dec 2017 |
| BSUoS Forecast 2017-12-21 | 21 Dec 2017 |
| BSUoS Forecast 2017-12-20 | 20 Dec 2017 |
| BSUoS Forecast 2017-12-19 | 19 Dec 2017 |
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 May 2022 | 1 Jun 2022 |
| BSUoS Forecast July 2022 | 1 Jun 2022 |
| BSUos Outturn Chart and Commentary April 2022 | 1 May 2022 |
| BSUoS Forecast June 2022 | 1 May 2022 |
| BSUos Outturn Chart and Commentary March 2022 | 1 Apr 2022 |
| BSUoS Forecast May 2022 | 1 Apr 2022 |
| BSUos Outturn Chart and Commentary February 2022 | 1 Mar 2022 |
| BSUos Outturn Chart and Commentary February 2022 - revised | 1 Mar 2022 |
| BSUoS Forecast April 2022 | 1 Mar 2022 |
| BSUoS Forecast March 2022 | 1 Feb 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 May-2016 | 5 Mar 2016 |
| Daily OPMR for Dec-2016 | 12 Jan 2016 |
| Daily OPMR for Nov-2016 | 11 Jan 2016 |
| Daily OPMR for Sep-2016 | 9 Jan 2016 |
| Daily OPMR for Aug-2016 | 8 Jan 2016 |
| Daily OPMR for Jul-2016 | 7 Jan 2016 |
| Daily OPMR for Jun-2016 | 6 Jan 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