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NPRR207

Summary

Title: Unit Deselection (formerly "Hour Start Unit Deselection and Half Hour Start Unit RUC Clawback")
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Status: Approved on 07/20/2010
Effective Dates:
12/01/2010

All sections except for Sections 2.1, 4.4.9.2.1, 4.4.9.3 and 5.5.2

Action

Date Gov Body Action Taken Next Steps
07/20/2010 BOARD Approved
04/22/2010 PRS Recommended for Approval TAC Consideration
02/18/2010 PRS Recommended for Approval TAC consideration of NPRR207
03/04/2010 TAC Deferred/Tabled TAC consideration of NPRR207
06/03/2010 TAC Deferred/Tabled TAC consideration of NPRR207
07/01/2010 TAC Recommended for Approval ERCOT Board consideration of NPRR207
04/08/2010 TAC Remanded PRS consideration of NPRR207
05/06/2010 TAC Deferred/Tabled TAC consideration of NPRR207

Voting Record

Date Gov Body Motion Result
07/20/2010 BOARD To approve NPRR207 as recommended by TAC in the 7/1/10 TAC Report. Passed
04/22/2010 PRS To recommend approval of NPRR207 as amended by the 4/22/10 WMS comments and as revised by PRS. Passed
02/18/2010 PRS To recommend approval of NPRR207 as submitted, to forward NPRR207 to TAC, and to recommend a priority of High. Passed
03/04/2010 TAC To table NPRR207 for one month. Passed
06/03/2010 TAC To table NPRR207 and to request that WMS review ERCOT’s draft deselection procedures. Passed
07/01/2010 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
04/08/2010 TAC To remand NPRR207 to PRS. Passed
05/06/2010 TAC To table NPRR207. Passed

Vote tallies here reflect individual votes, not the weight of the votes by market segment. Affirmative votes are not recorded in these vote tallies. For additional details on the voting record, please consult the Recommendation or Action Report, or the official vote tally if available, as posted in the key documents.

Background

Status: Approved
Date Posted: Jan 22, 2010
Sponsor: Seth Cochran and Tom Jackson, co-chairs, for the Quick Start Task Force (QSTF) on behalf of the Wholesale Market Subcommittee (WMS)
Urgent: No
Sections: 2.1, 5.5.2, 5.7.2
Description: 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.
Reason: RUC 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.

Key Documents

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