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 2018-08-20 | 20 Aug 2018 |
| BSUoS Forecast 2018-08-19 | 19 Aug 2018 |
| BSUoS Forecast 2018-08-18 | 18 Aug 2018 |
| BSUoS Forecast 2018-08-17 | 17 Aug 2018 |
| BSUoS Forecast 2018-08-16 | 16 Aug 2018 |
| BSUoS Forecast 2018-08-15 | 15 Aug 2018 |
| BSUoS Forecast 2018-08-14 | 14 Aug 2018 |
| BSUoS Forecast 2018-08-13 | 13 Aug 2018 |
| BSUoS Forecast 2018-08-12 | 12 Aug 2018 |
| BSUoS Forecast 2018-08-11 | 11 Aug 2018 |
Daily BSUoS Forecast 2017-18
| Name | Published Sort ascending |
|---|---|
| BSUoS Forecast 2017-12-18 | 18 Dec 2017 |
| BSUoS Forecast 2017-12-15 | 15 Dec 2017 |
| BSUoS Forecast 2017-12-14 | 14 Dec 2017 |
| BSUoS Forecast 2017-12-13 | 13 Dec 2017 |
| BSUoS Forecast 2017-12-11 | 11 Dec 2017 |
| BSUoS Forecast 2017-12-08 | 8 Dec 2017 |
| BSUoS Forecast 2017-12-07 | 7 Dec 2017 |
| BSUoS Forecast 2017-12-05 | 5 Dec 2017 |
| BSUoS Forecast 2017-04-12 | 4 Dec 2017 |
| BSUoS Forecast 2017-12-04 | 4 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 January 2022 | 1 Feb 2022 |
| BSUoS Outturn Chart and Commentary December 2021 | 1 Jan 2022 |
| BSUoS Report December 2021 | 1 Jan 2022 |
| BSUoS Forecast February 2022 | 1 Jan 2022 |
| BSUoS Forecasting Update January 2022 – Communications Pack | 1 Dec 2021 |
| BSUoS Report November 2021 | 1 Dec 2021 |
| BSUoS Report October 2021 | 1 Nov 2021 |
| BSUoS Forecast Explainer December 2021 | 1 Nov 2021 |
| BSUoS Forecast Explainer November 2021 | 20 Oct 2021 |
| BSUoS Report September 2021 | 1 Oct 2021 |
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:
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