PRR673

Title:	Adjust SCE Performance Charge Scale Factor
Next Group:
Next Step:
Status:	Approved on 11/14/2006
Related Issue:	Approval of PRR661 was with agreement that stakeholders would address the scaling factor for performance.

Date	Gov Body		Next Steps
11/14/2006	Board of Directors	Approved
10/06/2006	TAC	Recommended for Approval	Board consideration
08/17/2006	PRS	Recommended for Approval
07/19/2006	PRS		Language review

Date	Gov Body	Motion	Result	Against	Abstentions
11/14/2006	Board of Directors	Approve as recommended by TAC.	Passed	0	0
10/06/2006	TAC	Recommend approval of PRR673 as recommended by PRS.	Passed	0	0
08/17/2006	PRS	Recommend approval as revised by TXU and ERCOT comments, and as revised by PRS consistent with the August 10, 2006 ROS discussion.	Passed		3 1 MOU and 2 IREPs
07/19/2006	PRS	To grant urgent status via email vote.	Failed	1 IOU

Status:	Approved
Date Posted:	07/14/2006
Sponsor:	Frequency Control Task Force
Urgent:	No
Sections:	6.10.12.1 SCE Performance Charge
Description:	The Scale Factor value in the SCE Performance Charge calculation is currently fixed at 1. This PRR would modify the Scale Factor monthly based on ERCOT�??s CPS_1 score. This PRR also sets maximum and minimum values for the Scale Factor.
Reason:	The Scale Factor is a mechanism placed in the SCE Performance Charge calculation to allow for simple revision of the formula if the performance charge created by PRR 661 is later deemed to be too severe or too lenient. When recommending approval of PRR 661 to the Board, TAC directed WMS to develop a PRR proposing a method to automatically adjust the Scale Factor, other than through repetitive Protocol Revision Requests.