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PRR764

Summary

Title Zonal Congestion and CSCs/CREs
Next Group
Next Step
Status Approved on 06/06/2008

Action

Date Gov Body Action Taken Next steps
06/06/2008 BOARD Approved
06/05/2008 TAC Recommended for Approval Board of Directors review of PRR764
06/03/2008 PRS Recommended for Approval

Voting Record

Date Gov Body Motion Result
06/06/2008 BOARD Approved PRR764 as recommended by TAC and requested ERCOT Staff to make best efforts to implement PRR764 by 8:00AM CDT, June 9, 2008. Passed
06/05/2008 TAC Recommend approval of PRR764 as amended by LCRA comments and as revised by TAC; deem as the approved list of contingencies for managing CSC and CRE related congestion is the current approved CSC/CRE list; and direct WMS through the congestion management working group (CMWG) to begin work on a process to determine CREs and the approved list of contingencies for managing CSC and CRE related congestion. Passed
06/03/2008 PRS To recommend approval of PRR764 as amended by ERCOT and Luminant comments and as revised by PRS with a recommendation to TAC to initiate a study/review of existing CREs. Passed

Background

Status: Approved
Date Posted: May 29, 2008
Sponsor: Potomac Economics
Urgent: Yes
Sections: 7.3.2, 7.5.2
Description: This Protocol Revision Request (PRR) provides that zonal constraints are only those constraints for which a Commercially Significant Constraint (CSC) or Closely Related Elements (CRE) is the base case or post-contingency limiting element.
Reason: Recent experience has revealed that the attempt to use zonal Balancing Energy to manage zonal constraints for which the post-contingency limiting element is neither a CSC nor a CRE has been very ineffective and inefficient.

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