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Forecast volumes and costs

On this page we provide a breakdown of operating margin (OPMR), based on forecast volume of reserve, forecast volume of frequency response required, annual weighting factors for STOR contracts, and forecasts of BSUoS charges.

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.

BSUoS

Daily BSUoS Forecast 2018-19Daily BSUoS Forecast 2017-18Monthly BSUoS Forecast

Daily BSUoS Forecast 2018-19

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

Published Sort ascending Name
28 Feb 2020Daily BSUoS Forecast 2019-20
3 Apr 2019Daily BSUoS Forecast 2018-19
29 Nov 2018BSUoS Forecast 2018-11-29
28 Nov 2018BSUoS Forecast 2018-11-28
27 Nov 2018BSUoS Forecast 2018-11-27
26 Nov 2018BSUoS Forecast 2018-11-26
23 Nov 2018BSUoS Forecast 2018-11-23
22 Nov 2018BSUoS Forecast 2018-11-22
21 Nov 2018BSUoS Forecast 2018-11-21
20 Nov 2018BSUoS Forecast 2018-11-20
19 Nov 2018BSUoS Forecast 2018-11-19
16 Nov 2018BSUoS Forecast 2018-11-16
15 Nov 2018BSUoS Forecast 2018-11-15
14 Nov 2018BSUoS Forecast 2018-11-14
13 Nov 2018BSUoS Forecast 2018-11-13
12 Nov 2018BSUoS Forecast 2018-11-12
9 Nov 2018BSUoS Forecast 2018-11-09
8 Nov 2018BSUoS Forecast 2018-11-08
7 Nov 2018BSUoS Forecast 2018-11-07
6 Nov 2018BSUoS Forecast 2018-11-06

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Daily BSUoS Forecast 2017-18

Published Sort ascending Name
29 Mar 2018BSUoS Forecast 2018-03-29
28 Mar 2018BSUoS Forecast 2018-03-28
27 Mar 2018BSUoS Forecast 2018-03-27
26 Mar 2018BSUoS Forecast 2018-03-26
25 Mar 2018BSUoS Forecast 2018-03-25
24 Mar 2018BSUoS Forecast 2018-03-24
23 Mar 2018BSUoS Forecast 2018-03-23
22 Mar 2018BSUoS Forecast 2018-03-22
21 Mar 2018BSUoS Forecast 2018-03-21
19 Mar 2018BSUoS Forcast 2018-03-19
16 Mar 2018BSUoS Forecast 2018-03-16
15 Mar 2018BSUoS Forecast 2018-03-15
14 Mar 2018BSUoS Forecast 2018-03-14
13 Mar 2018BSUoS Forecast 2018-03-13
12 Mar 2018BSUoS Forecast 2018-03-12
9 Mar 2018BSUoS Forecast 2018-03-09
6 Mar 2018BSUoS Forecast 2018-03-06
5 Mar 2018BSUoS Forecast 2018-03-05
2 Mar 2018BSUoS Forecast 2018-03-02
1 Mar 2018BSUoS Forecast 2018-03-01

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152

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

Published Sort ascending Name
28 Jul 2020BSUoS Report May 2018
14 Feb 2020BSUoS Report Feb 2020
14 Feb 2020BSUoS Report Feb 2020 Data
15 Jan 2020BSUoS Report Jan 2020 Data
15 Jan 2020BSUoS Report Jan 2020
13 Dec 2019BSUoS Report Dec 2019
13 Dec 2019BSUoS Report Dec 2019 Data
14 Nov 2019BSUoS Report Nov 2019
14 Nov 2019BSUoS Report Nov 2019 Data
14 Oct 2019BSUoS Report Oct 2019
14 Oct 2019BSUoS Report Oct 2019 Data
18 Sep 2019BSUoS Report Sep 2019 Data
18 Sep 2019BSUoS Report Sep 2019
15 Aug 2019BSUoS Report Aug 2019
15 Aug 2019BSUoS Report Aug 2019 Data
15 Jul 2019BSUoS Report Jul 2019
11 Jul 2019BSUoS Report Jul 2019 Data
19 Jun 2019BSUoS Report Jun 2019 Data
13 Jun 2019BSUoS Report Jun 2019
14 May 2019BSUoS Report May 2019

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Margin requirements

Reserve requirement (OPMR)NRAPM forecastSTOR weighting factors

Reserve requirement (OPMR)

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:

https://data.nationalgrideso.com/data-groups/generation

Published Sort ascending Name
28 Feb 2020Daily OPMR for Feb-2020
28 Feb 2020Wind Availability
27 Feb 2020Weekly OPMR - January-June 2020
27 Feb 2020Weekly Wind Availability
31 Jan 2020Daily OPMR for Jan-2020
29 Nov 2019Daily OPMR for Nov-2019
1 Nov 2019Daily OPMR for Oct-2019
30 Sep 2019Daily OPMR for Sep-2019
30 Aug 2019Daily OPMR for Aug-2019
31 Jul 2019Daily OPMR for Jul-2019
28 Jun 2019Daily OPMR for Jun-2019
27 Jun 2019Weekly OPMR - Jan-Jun 2019
31 May 2019Daily OPMR for May-2019
30 Apr 2019Daily OPMR for Apr-2019
29 Mar 2019Daily OPMR for Mar-2019
28 Feb 2019Daily OPMR for Feb-2019
1 Feb 2019Daily OPMR for Jan-2019
31 Dec 2018Daily OPMR for Dec-2018
27 Dec 2018Weekly OPMR - July-December 2018
30 Nov 2018Daily OPMR for Nov-2018

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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

Published Sort ascending Name
28 Feb 2020NRAPM Risk Forecast
19 Jul 2018NRAPM Risk Forecast
21 May 2018NRAPM Risk Forecast
18 May 2018NRAPM Risk Forecast
11 May 2018NRAPM Risk Forecast
10 May 2018NRAPM Risk Forecast
19 Apr 2018NRAPM Risk Forecast
23 Mar 2018NRAPM Risk Forecast
15 Feb 2018NRAPM Risk Forecast
23 Jan 2018NRAPM Risk Forecast
21 Jul 2015NRAPM Forecasting Note
11

STOR weighting factors

Name
STOR Weighting Factors updated on 25 Sept 2013
1
National Grid ESO
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