NPRR #207 · Revision Request
NPRR207 Unit Deselection (formerly "Hour Start Unit Deselection and Half Hour Start Unit RUC Clawback")
ReasonRUC processes consider all remaining Operating Hours for a given Operating Day and issue RUC Dispatch Instructions to ensure reliability. To issue a unit commitment decision well in advance of a unit’s capabilities, however, ignores the unit’s unique operational flexibility and may lead to over-commitment of Generation Resources, increasing uplifted RUC costs. This NPRR would provide ERCOT with discretion to "deselect" units from all RUC processes. In addition to creating ERCOT’s discretion to delay RUC instructions, the NPRR allows the QSE to self-commit the Resource, enabling market-based solutions to avoid uplifted RUC costs.
Created2010-02-18
Approved2010-07-20
Sections Affected
2.15.5.25.7.2
Summary
This Nodal Protocol Revision Request (NPRR) would provide that ERCOT may deselect units from Reliability Unit Commitment (RUC) processes. The NPRR also creates the term "RUC Notification" to refer to an ERCOT instruction preceding a Resource’s startup time. The NPRR enables the Qualified Scheduling Entity (QSE) to self-commit, a Resource after receiving a RUC Notification but before the Resource’s startup time.
Action Log 8 milestones
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May 6
TACDeferred/Tabled→ TAC consideration of NPRR207
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Apr 8
TACRemanded→ PRS consideration of NPRR207
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Jul 1
TACRecommended for Approval→ ERCOT Board consideration of NPRR207
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Jun 3
TACDeferred/Tabled→ TAC consideration of NPRR207
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Mar 4
TACDeferred/Tabled→ TAC consideration of NPRR207
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Feb 18
PRSRecommended for Approval→ TAC consideration of NPRR207
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Apr 22
PRSRecommended for Approval→ TAC Consideration
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Jul 20
BOARDApproved
Amendments
| Date | Body | Motion | Result |
|---|---|---|---|
| Jul 1 '10 | TAC | To recommend approval of NPRR207 as amended by the 5/26/10 WMS comments as revised by TAC, to assign a priority of High for the grey-boxed portion, and to recommend that ERCOT incorporate the revisions to the ERCOT RUC desk procedure relating to NPRR207 proposed in the 6/24/10 NATF comments. | Passed |
| Apr 22 '10 | PRS | To recommend approval of NPRR207 as amended by the 4/22/10 WMS comments and as revised by PRS. | Passed |
Documents 34
Meetings That Took It Up 27
| Date | Meeting | Committee | Status |
|---|---|---|---|
| Jun 4 '13 | Qualified Scheduling Entity Managers Working Group (QMWG) Meeting | QMWG | Concluded |
| Oct 10 '12 | Wholesale Market Subcommittee (WMS) Meeting | WMS | Concluded |
| Oct 8 '12 | Qualified Scheduling Entity Managers Working Group (QMWG) Meeting | QMWG | Concluded |
| Sep 12 '12 | Wholesale Market Subcommittee (WMS) Meeting | WMS | Concluded |
| Sep 10 '12 | Qualified Scheduling Entity Managers Working Group (QMWG) Meeting | QMWG | Concluded |
| Aug 15 '12 | Wholesale Market Subcommittee (WMS) Meeting | WMS | Concluded |
| Aug 9 '12 | Joint QMWG and ETWG Meeting | QMWG | Concluded |
| Jul 11 '12 | Wholesale Market Subcommittee (WMS) Meeting | WMS | Concluded |
| Apr 9 '12 | Qualified Scheduling Entity Managers Working Group (QMWG) Meeting | QMWG | Concluded |
| Sep 20 '11 | Board of Directors Meeting | BOARD | Concluded |
| Sep 1 '11 | TAC Meeting | TAC | Concluded |
| Aug 18 '11 | PRS Meeting | PRS | Concluded |
| Jul 21 '11 | PRS Meeting | PRS | Concluded |
| Jun 23 '11 | PRS Meeting | PRS | Concluded |
| Jul 1 '10 | TAC Meeting | TAC | Concluded |
| Jun 23 '10 | NATF Meeting | NATF | Concluded |
| Jun 16 '10 | WMS Meeting | WMS | Concluded |
| Jun 3 '10 | TAC Meeting | TAC | Concluded |
| May 20 '10 | PRS Meeting | PRS | Concluded |
| May 19 '10 | WMS Meeting | WMS | Concluded |
| May 6 '10 | TAC Meeting | TAC | Concluded |
| Apr 22 '10 | PRS Meeting | PRS | Concluded |
| Apr 21 '10 | WMS Meeting | WMS | Concluded |
| Apr 8 '10 | TAC Meeting | TAC | Concluded |
| Mar 4 '10 | TAC Meeting | TAC | Concluded |
| Feb 18 '10 | PRS Meeting | PRS | Concluded |
| Feb 17 '10 | WMS Meeting | WMS | Concluded |