NOTICE DATE:  August 1, 2008

NOTICE TYPE:  W-A080108-01 Operations

CLASSIFICATION: Public

SHORT DESCRIPTION: Modifications to the posting of Real-Time CSC/CRE data

INTENDED AUDIENCE:  QSE Operations Personnel

DAY AFFECTED:  July 31, 2008

LONG DESCRIPTION:  ERCOT has modified the posting of the Real-Time Commercially Significant Constraint (CSC) data to include the limiting Contingency and Overloading Element data.   (http://mospublic.ercot.com/ercot/jsp/csc_cre.jsp). 

ADDITIONAL INFORMATION:  On May 28, 2008, the CSC Limit Calculator was automated to allow ERCOT to update the limits on each CSC in a more timely manner and to maximize the flow across zones.  Although the resulting limits are posted in response to the adoption of PRR764, Market Participants have expressed a desire to see the contingency and overloaded element used to determine each CSC limit.

CONTACT:  If you have any questions, please contact your ERCOT Account Manager. You may also call the general ERCOT Client Services phone number at (512) 248-3900 or contact ERCOT Client Services via e-mail at [log in to unmask].

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