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 HERENewsMarket Index Data for Settlement Date 6 June 2018 
JUN 2018
Market Index Data for Settlement Date 6 June 2018
Originally published by Neil Thomas on 07/06/2018 17:26:39
Last modified by Neil Thomas on 07/06/2018 17:37:22

What is happening?

System Prices for Settlement Periods 26 and 27 were reported as £0/MWh on the BMRS yesterday, Settlement Date 6 June 2018. In the two Settlement Periods the System Price calculation required the System Price to default to the Market Index Price. However, Market Index Data could not be processed by BSC Central systems. Consequently, a default Market Index Price of £0/MWh was used in the calculation.

More information on how the Imbalance Price is calculated can be found in our Imbalance Prices guidance document.

Will the Imbalance Price Change?

Yes. Market Index Data has now been processed and the Imbalance Prices will be re-calculated at the II Settlement Run.

The correct Market Index Price that will be used to calculate the Imbalance Prices are:

Settlement Period

Market Index Price






How will I be impacted?

There is no impact on BSC Settlement processes, the System Prices will be calculated using the Market Index Price at the II Settlement Run for Credit Cover Percentage calculations and data flows.

The BMRS prices are for indicative purposes and will not be recalculated. System Prices calculated with the best available data will be published on the ELEXON Portal.

Is there anything else I need to know?

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