Title Timing of Calculation of RPRS Under Scheduled Charges
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Next Step
Status Approved on 07/18/2006
Effective Dates


Date Gov Body Action Taken Next steps
07/18/2006 BOARD Approved
07/06/2006 TAC Recommended for Approval Board consideration.
06/08/2006 PRS Recommended for Approval TAC Consideration
05/26/2006 PRS Rejected

Voting Record

Date Gov Body Motion Result
07/18/2006 BOARD Approve as recommended by TAC Passed
07/06/2006 TAC Approve as submitted by PRS. Passed
06/08/2006 PRS Passed
05/26/2006 PRS Motion to grant urgent status Failed


Status: Approved
Date Posted: May 24, 2006
Sponsor: Fulcrum Power
Urgent: Yes
Sections: 4.4.17,
Description: This PRR revises the timing of schedules that ERCOT uses for determining the quantity of under scheduled energy from 1300 to 1600 in the day ahead period. The PRR also revises the timing of the load forecast that ERCOT uses from 1100 to 1600.
Reason: Currently, ERCOT will procure RPRS during the lock-out period from 1600 to 1800 in the day-ahead period. However, ERCOT uses QSEs™ schedules submitted at 1300 for determination of RPRS Under scheduling charges. This timing mismatch unnecessarily penalizes QS€™s that have schedule mismatches or insufficient supply at 1300 but who have corrected those problems by 1600. Additionally, this timing mismatch presents an opportunity for gaming, as a QSE can have a generating unit scheduled to be online at 1300 in the day-ahead period and then adjust the schedule between 1300 and 1600 to show the unit offline, thereby not only avoiding under scheduling charges for having insufficient supply at 1300 but also being able to then bid that unit into RPRS. In Section 4, ERCOT is instructed to procure RPRS at 1800 based on a load forecast generated at 1300. It seems more appropriate that the RPRS procurement be based on the most recent load forecast available.

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