PRR687

Title:	Replacement Reserve Under-Scheduled Capacity Delineation
Next Group:
Next Step:
Status:	Approved on 09/19/2006

Date	Gov Body		Next Steps
09/19/2006	Board of Directors	Approved
09/07/2006	TAC	Recommended for Approval
08/31/2006	PRS	Recommended for Approval	TAC consideration

Date	Gov Body	Motion	Result
09/19/2006	Board of Directors	Approve PRR687 as recommended by TAC.	Passed
09/07/2006	TAC	Recommend approval as revised by TAC.	Passed
08/31/2006	PRS	Recommend approval as revised at PRS.	Passed

Status:	Approved
Date Posted:	08/24/2006
Sponsor:	ERCOT
Urgent:	Yes
Sections:	6.9.2.1
Description:	This PRR corrects discrepancies in the Replacement Reserve Under-Scheduled Capacity charge equation.
Reason:	PRR 666, Modification of RPRS Under-Scheduled Capacity Charge Calculation (approved by the Board on July 18, 2006), was finalized after many iterations and discussions regarding modification of the Replacement Under-Schedule Capacity charge calculation. Some of these modifications contributed to discrepancies in the description of the Net Load position and mismatch components of the equation.