October 31, 2014



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Energy Imbalance Market Ready to be Fully Deployed and Activated




The California ISO is pleased to announce the deployment of Energy Imbalance Market (EIM) full binding production systems.  The EIM will be active for trading date November 1, 2014.



Main Text

The ISO is commencing the deployment activities associated with the Energy Imbalance Market full binding production systems.  The Energy Imbalance Market will be effective for trading date November 1, 2014.


EIM has been tested in a simulation environment for the past several months.  During October the ISO and PacifiCorp executed in parallel production mode, which provided both organizations a more accurate view of actual market and operating conditions.  Binding dispatches and related financial settlements will begin for trading date November 1.


More Energy Imbalance Market information is available on the ISO website at under the Fall 2014 release heading.


To provide assistance to market participants during this deployment period, the ISO will have a Customer Support Center with an open bridge that will be available 24 hours a day until no longer needed.


Market Participant Support Bridge

Date: October 31, 2014

Start time: 12:00 p.m. (Pacific Time)


Dial in: USA Toll-Free: 866-528-2256

USA Caller Paid: 216-706-7052

International Call-in Access:  


Web URL:

Meeting Number: 866-528-2256 or 216-706-7052

Access Code: 3512252



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