NPRR #255 · Revision Request
NPRR255 Resolution of Alignment Item A81 - DRUC Timing and Execution when DAM is Delayed or Aborted
ReasonThis change conforms the Nodal Protocols to the as-built ERCOT Nodal System Administrative Controls. If the DAM is delayed but executes, ERCOT will execute a Day-Ahead Reliability Unit Commitment (DRUC) no sooner than one hour following the completion of the delayed DAM and the sequence of events will be the same as for the normal Reliability Unit Commitment (RUC) timeline. If the DAM is aborted, ERCOT will not have procured Ancillary Services to meet the needs of the ERCOT Ancillary Service Plan posted prior to the aborted DAM. In this case ERCOT will use the Supplemental Ancillary Services Market (SASM) process described in Section 6.4.8.2, Supplemental Ancillary Services Market, to procure the amount of Ancillary Services not provided as self-arranged by the Qualified Scheduling Entities (QSEs) for the next Operating Day.
Created2010-07-22
Approved2010-10-19
Sections Affected
4.1.25.2.15.2.2 (new)5.2.2.1 (new)5.2.2.2 (new)
Summary
This Nodal Protocol Revision Request (NPRR) adds new Section 5.2.2 to describe the process that ERCOT will follow in the event that the Day-Ahead Market (DAM) is delayed or aborted.
Action Log 6 milestones
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Jul 22
PRSReferred→ NATF consideration of NPRR255
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Aug 19
PRSRecommended for Approval→ PRS Impact Analysis review
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Sep 23
PRSDeferred/Tabled→ PRS Impact Analysis review
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Oct 4
PRSRecommended for Approval→ TAC consideration of NPRR255
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Oct 7
TACRecommended for Approval→ ERCOT Board consideration of NPRR255
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Oct 19
BOARDApproved
Amendments
| Date | Body | Motion | Result |
|---|---|---|---|
| Oct 4 '10 | PRS | To endorse and forward the 8/19/10 PRS Report as amended by the 9/30/10 ERCOT comments and Impact Analysis for NPRR255 to TAC. | Passed |
Documents 12
| Name | Type | Posted | Classification |
|---|---|---|---|
| 255NPRR-01 Resolution of Alignment Item A81 - DRUC Timing and Ex | doc | Jul 15 '10 | Revision Request |
| 255NPRR-02 CEO Revision Request Review 071510 | doc | Jul 15 '10 | Revision Request Comments |
| 255NPRR-03 Impact Analysis 071510 | doc | Jul 15 '10 | Staff Report |
| 255NPRR-04 PRS Report 072210 | doc | Jul 26 '10 | Committee Report |
| 255NPRR-05 NATF Comments 081010 | doc | Aug 10 '10 | Revision Request Comments |
| 255NPRR-06 PRS Report 081910 | doc | Aug 23 '10 | Committee Report |
| 255NPRR-07 Luminant Comments 082310 | doc | Aug 23 '10 | Revision Request Comments |
| 255NPRR-08 PRS Report 092310 | doc | Sep 27 '10 | Committee Report |
| 255NPRR-09 ERCOT Comments 093010 | doc | Sep 30 '10 | Revision Request Comments |
| 255NPRR-10 PRS Report 100410 | doc | Oct 5 '10 | Committee Report |
| 255NPRR-11 TAC Report 100710 | doc | Oct 8 '10 | Committee Report |
| 255NPRR-12 Board Report 101910 | doc | Oct 20 '10 | Committee Report |
Meetings That Took It Up 8
| Date | Meeting | Committee | Status |
|---|---|---|---|
| Oct 7 '10 | TAC Meeting | TAC | Concluded |
| Oct 4 '10 | Special WMS Meeting | WMS | Concluded |
| Oct 4 '10 | Special PRS Meeting | PRS | Concluded |
| Sep 23 '10 | PRS Meeting | PRS | Concluded |
| Aug 19 '10 | PRS Meeting | PRS | Concluded |
| Aug 3 '10 | NATF: Special Meeting | NATF | Concluded |
| Jul 29 '10 | NATF Meeting | NATF | Concluded |
| Jul 22 '10 | PRS Meeting | PRS | Concluded |