NPRR #598 · Revision Request
NPRR598 Clarify Inputs to PRC and ORDC
ReasonMarket efficiencies or enhancements
Created2014-02-13
Approved2014-04-08
Sections Affected
6.5.7.36.5.7.56.7.4
Summary
This Nodal Protocol Revision Request (NPRR) aligns the inputs to Physical Responsive Capability (PRC) and ORDC; stipulates the treatment of Off-Line capacity during scarcity conditions; and also proposes the following changes: · Removes STARTUP and SHUTDOWN status from PRC and ORDC calculations; · Sets Real-Time Off-Line available reserves used in the ORDC calculation to zero when SCED snapshot of the PRC becomes less than or equal to 2,300 MW which is the PRC MW at which Energy Emergency Alert (EEA) Level 1 is initiated; and · Changes the Load Resource Responsive Reserve (RRS) schedule used in ORDC to Max { min{Telemetered MW, RRS schedule, max[MPC - LPC - (Regulation responsibility + Non-Spin responsibility + Down Regulation responsibility), 0]}, 0}
Action Log 3 milestones
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Feb 13
PRSRecommended for Approval→ TAC for consideration
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Feb 27
TACRecommended for Approval→ ERCOT Board for consideration
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Apr 8
BOARDApproved
Amendments
| Date | Body | Motion | Result |
|---|---|---|---|
| Feb 27 '14 | TAC | To recommend approval of NPRR598 as recommended by PRS in the 2/13/14 PRS Report and as amended by the 2/25/14 ERCOT comments; to recommend approval of the "Methodology for Implementing Operating Reserve Demand Curve (ORDC) to Calculate Real-Time Reserve Price Adder" as amended by the 2/25/14 ERCOT comments - Attachment 1; and to add the methodology to the Other Binding Document List. | Passed |
| Apr 8 '14 | BOARD | To approved NPRR598 as amended by the 3/28/14 TAC comments. | Passed |
Ballots
| Date | Body | Result | Yes | No | Abstain | |
|---|---|---|---|---|---|---|
| Mar 27 '14 | TAC | Motion Fails | 9 | 18 | 1 | xls |
| Mar 27 '14 | TAC | — | 8 | 17 | 4 | xls |
Documents 18
Meetings That Took It Up 5
| Date | Meeting | Committee | Status |
|---|---|---|---|
| May 7 '14 | WMS Meeting | WMS | Concluded |
| Apr 8 '14 | Board of Directors Meeting | BOARD | Concluded |
| Mar 27 '14 | TAC Meeting | TAC | Concluded |
| Feb 27 '14 | TAC Meeting | TAC | Concluded |
| Feb 20 '14 | Joint CWG/MCWG Meeting | CREDITWG | Concluded |