Cookies on the ELEXON Portal

This website stores cookies on your computer, both as an essential part of the user experience and also to collect information to help us understand your use of the service and improve it. Use the links to the right to either view/change your cookie preferences, or simply dismiss this message and accept our default cookie settings. Note: A cookie will be stored on your computer to record these preferences.
> Cookie Preferences
> Dismiss Message PortalBM ReportsTAAMT
site search 
 YOU ARE HERENewsMissing Balancing Services Adjustment Data (BSAD) Values in System Prices on BMRS 
JUN 2018
Missing Balancing Services Adjustment Data (BSAD) Values in System Prices on BMRS
Originally published by Nathalie Palazzo on 04/06/2018 12:32:04

Missing Balancing Services Adjustment Data (BSAD) Values in System Prices on BMRS

What is happening?
We have been notified by National Grid that, between 05:30 (BST) and 08:30 (BST) today, they experienced issues with generating Balancing Services Adjustment Data (BSAD) files to the Balancing Mechanism Reporting Service (BMRS). The BSAD values were not loaded in the Settlement Calculations on BMRS, which can result in displaying potentially less accurate System Prices data on BMRS. National Grid has confirmed the files are being generated and we are investigating if there are any issues with BMRS receiving subsequent files.

How will I be impacted?
For the Settlement Periods with missing BSAD data, default data has been used and the indicative System Prices on BMRS may deviate from final System Prices more than usual.

Is there anything else I need to know?
Unless there is a significant variation in the System Prices, Settlement Calculations will not be re-run for the affected Settlement Periods and we will provide an update in due course. For more information, please contact

Please login to get more out of the Portal. Personalisation, operational data and more! Login now.
Remember Me    more information
Your login session will normally be timed out after two hours of inactivity. Choosing "Remember Me" will extend this to 28 days of inactivity, so as long as you visit the site at least once every 28 days, you will remain logged in. Only use this option if you are on a private computer that others do not have access to.
Forgot Password?
Not yet a member?
Register now