NPRR #573 · Revision Request
NPRR573 Alignment of PRC Calculation
ReasonThis NPRR is aligns the Protocol language with the current PRC calculation in the EMS, and modifies the PRC calculation to represent appropriate frequency-responsive WGRs. The original Nodal Market design documents required any capacity from WGRs and nuclear Generation Resources above their current output level to be excluded from the calculation of PRC in the EMS. NPRR076, Synchronization of Emergency Electric Curtailment Plan (EECP) Event Realignment, modified Section 6.5.7.5 to add an equation for the calculation of PRC. The equation that was added to the Protocols as a result of NPRR076 did not exclude unloaded WGR and nuclear Generation Resource capacity. However, no change was made to the EMS design calculation of PRC as a result of NPRR076. Therefore, this NPRR excludes WGRs and nuclear Generation Resources from the PRC calculation, with the exception of Primary Frequency Response-capable WGRs.
Created2013-11-21
Approved2014-02-11
Sections Affected
6.5.7.5
Summary
This Nodal Protocol Revision Request (NPRR) aligns the Protocols with the current calculation used in the Energy Management System (EMS) to calculate Physical Responsive Capability (PRC), and adds capacity from Primary Frequency Response-capable Wind-powered Generation Resources (WGRs) to PRC.
Action Log 4 milestones
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Nov 21
PRSRecommended for Approval→ PRS Impact Analysis review
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Dec 19
PRSRecommended for Approval→ TAC consideration of NPRR573
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Jan 28
TACRecommended for Approval→ ERCOT Board consideration of NPRR573
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Feb 11
BOARDApproved
Amendments
| Date | Body | Motion | Result |
|---|---|---|---|
| Nov 21 '13 | PRS | To recommend approval of NPRR573 as amended by the 11/5/13 PDCWG comments. | Passed |
Documents 8
| Name | Type | Posted | Classification |
|---|---|---|---|
| 573NPRR-01 Alignment of PRC Calculation 102113 | doc | Oct 21 '13 | Revision Request |
| 573NPRR-02 Impact Analysis 102113 | doc | Oct 21 '13 | Staff Report |
| 573NPRR-03 PDCWG Comments 110513 | doc | Nov 5 '13 | Revision Request Comments |
| 573NPRR-04 PRS Report 112113 | doc | Nov 25 '13 | Committee Report |
| 573NPRR-05 Revised Impact Analysis 121813 | doc | Dec 18 '13 | Staff Report |
| 573NPRR-06 PRS Report 121913 | doc | Dec 20 '13 | Committee Report |
| 573NPRR-07 TAC Report 012814 | doc | Jan 29 '14 | Committee Report |
| 573NPRR-08 Board Report 021114 | doc | Feb 14 '14 | Committee Report |
Meetings That Took It Up 4
| Date | Meeting | Committee | Status |
|---|---|---|---|
| Feb 11 '14 | Board of Directors Meeting | BOARD | Concluded |
| Jan 28 '14 | TAC Meeting | TAC | Concluded |
| Dec 19 '13 | Protocol Revision Subcommittee (PRS) Meeting | PRS | Concluded |
| Nov 21 '13 | Protocol Revision Subcommittee (PRS) Meeting | PRS | Concluded |