Title QSE Day Ahead Metric
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Next Step
Status Approved on 05/20/2009


Date Gov Body Action Taken Next steps
05/20/2009 BOARD Approved
05/07/2009 TAC Recommended for Approval ERCOT Board consideration
04/23/2009 PRS Recommended for Approval PRS Language Consideration
03/19/2009 PRS Deferred/Tabled PRS Language Consideration
02/19/2009 PRS Deferred/Tabled PRS Language Consideration

Voting Record

Date Gov Body Motion Result
05/20/2009 BOARD To approve PRR800 as recommended by TAC. Passed
05/07/2009 TAC To recommend approval of PRR800 as recommended by PRS. Passed
04/23/2009 PRS To grant Urgency on PRR800 Passed
03/19/2009 PRS To table PRR800 and instruct ERCOT to provide a statement of the benefits associated with this PRR Passed
02/19/2009 PRS To table PRR800 until the March 19th PRS meeting. Passed


Status: Approved
Date Posted: Jan 20, 2009
Sponsor: ERCOT
Urgent: Yes
Sections: 4.10.5
Description: This Protocol Revision Request (PRR) re-defines the Day Ahead metric for both Wind-powered Generation Resource (WGR) Qualified Scheduling Entities (QSEs) and non-WGR QSEs to ensure that both categories of QSEs schedule enough capacity in the Day Ahead market to meet their planned energy schedules plus Ancillary Service (AS) Obligations. This PRR removes the WGR QSEs exemption established in PRR 777, WGR QSE Metric Correction.
Reason: PRR777, WGR QSE Metric Correction, addressed the disconnect between the energy schedules and the requirement to set the planned output in the Resource Plan equal to the ERCOT-provided Wind Power Forecast. This PRR establishes a requirement to schedule enough capacity to cover energy schedules plus AS Obligations in the Resource Plans for all QSEs. The Day Ahead Replacement Reserve Service (RPRS) market does not use energy schedules as input. RPRS uses the Resource Plan capacity, ERCOT Load Forecast and Ancillary Service Requirements as input. Protocol Section 4.1.1, Day Ahead Scheduling Process, states that ERCOT will verify that Resource Plans are sufficient to meet QSEs energy schedules. ERCOT proposes a change that would verify that all QSEs have sufficient capacity in their Resource Plans to meet their energy schedules.

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