Protocol Revision Subcommittee

Protocol Revision Protocol Revision SubcommitteeSubcommittee

Presentation to the Presentation to the

ERCOT Technical Advisory CommitteeERCOT Technical Advisory Committee

May 6, 2010May 6, 2010

PRS SummaryPRS Summary

0 PRRs for Approval0 PRRs for Approval

4 NPRRs for Approval4 NPRRs for Approval

0 NPRRs for Parking Deck 0 NPRRs for Parking Deck ConsiderationConsideration

1 Rejection1 Rejection

1 Withdrawal1 Withdrawal

Current DiscussionsCurrent Discussions

Items for a VoteItems for a VoteUnanimous RecommendationsUnanimous RecommendationsNoneNoneNon-Unanimous RecommendationsNon-Unanimous RecommendationsNPRR207, Unit Deselection (formerly “Hour Start NPRR207, Unit Deselection (formerly “Hour Start Unit Deselection and Half Hour Start Unit RUC Unit Deselection and Half Hour Start Unit RUC Clawback”)Clawback”)NPRR209, Data Posting Changes to Comply with NPRR209, Data Posting Changes to Comply with P.U.C. SUBST. R. 25.505 P.U.C. SUBST. R. 25.505 NPRR211, Clarify Capacity Obligations of NPRR211, Clarify Capacity Obligations of Energy Trades (formerly “Modify RUC Capacity Energy Trades (formerly “Modify RUC Capacity Short Charge to Use Final Energy Trades”)Short Charge to Use Final Energy Trades”)NPRR214, Wind-powered Generation Resource NPRR214, Wind-powered Generation Resource (WGR) High Sustained Limit (HSL) Update (WGR) High Sustained Limit (HSL) Update Process Process

NPRR207, Unit Deselection NPRR207, Unit Deselection (formerly “Hour Start Unit (formerly “Hour Start Unit

Deselection and Half Hour Start Unit Deselection and Half Hour Start Unit RUC Clawback”) RUC Clawback”)

PurposePurpose

(WMS)(WMS)

This 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.

Market ImpactMarket Impact N/AN/A

System ChangeSystem Change YesYes N/AN/A

PRS VotePRS Vote PRS voted to recommend approval of NPRR207 as amended by the 4/22/10 WMS comments and as revised by PRS. There was one abstention from the Consumer Market Segment.

CEO CEO DeterminationDetermination

Not needed for go-live

Effective DateEffective Date Needs parking deck designation

NPRR207, Unit Deselection NPRR207, Unit Deselection (formerly “Hour Start Unit (formerly “Hour Start Unit

Deselection and Half Hour Start Deselection and Half Hour Start Unit RUC Clawback”) Unit RUC Clawback”)

Item ReviewedItem Reviewed DescriptionDescriptionNoNoImpactImpact

Credit Credit Monitoring/Monitoring/LiabilityLiability

BudgetBudget

StaffingStaffing

Computer SystemsComputer Systems

Business FunctionsBusiness Functions

Grid OperationsGrid Operations

ImpactImpact

NPRR209, Data Posting Changes to NPRR209, Data Posting Changes to Comply with P.U.C. SUBST. R. Comply with P.U.C. SUBST. R.

25.50525.505PurposePurpose

(NRG and (NRG and Calpine)Calpine)

This NPRR removes a requirement to post certain State Estimator information that can be used to determine Resource status, which is confidential information as per Public Utility Commission of Texas (PUCT) rules.


System ChangeSystem Change NoNo N/AN/A

PRS VotePRS Vote PRS voted to recommend approval of NPRR209 as submitted via roll call vote.


No opinion on necessity prior to go-live

Effective DateEffective Date Upon Texas Nodal Market Implementation

NPRR209, Data Posting Changes to NPRR209, Data Posting Changes to Comply with P.U.C. SUBST. R. Comply with P.U.C. SUBST. R.

25.50525.505



BudgetBudget

StaffingStaffing




ImpactImpact

NPRR211, Clarify Capacity NPRR211, Clarify Capacity Obligations of Energy Trades Obligations of Energy Trades

(formerly “Modify RUC Capacity (formerly “Modify RUC Capacity Short Charge to Use Final Energy Short Charge to Use Final Energy

Trades”) Trades”) PurposePurpose

(J Aron)(J Aron)

This NPRR specifies that Energy Trades representing firm physical products that are entered and confirmed through ERCOT must be submitted by 1430 in the Day-Ahead for the Operating Day, and that Energy Trades representing firm physical products that are executed during the adjustment period and confirmed through ERCOT must be submitted prior to the next Hourly Reliability Unit Commitment (HRUC) execution.


System ChangeSystem Change NoNo N/AN/A

PRS VotePRS Vote On 3/25/10, PRS unanimously voted to recommended approval of NPRR211 as amended by the 3/25/10 WMS comments. On 4/22/10, PRS voted to endorse and forward the 3/25/10 PRS Report as revised by PRS and Impact Analysis for NPRR211 to TAC. There was one abstention from the Independent Generator Market Segment.




NPRR211, Clarify Capacity NPRR211, Clarify Capacity Obligations of Energy Trades Obligations of Energy Trades

(formerly “Modify RUC Capacity (formerly “Modify RUC Capacity Short Charge to Use Final Energy Short Charge to Use Final Energy

Trades”) Trades”) Item ReviewedItem Reviewed DescriptionDescriptionNoNo

ImpactImpact


BudgetBudget

StaffingStaffing




ImpactImpact

NPRR214, Wind-powered Generation NPRR214, Wind-powered Generation Resource (WGR) High Sustained Resource (WGR) High Sustained

Limit (HSL) Update Process Limit (HSL) Update Process

PurposePurpose

(Wind (Wind Coalition)Coalition)

This NPRR establishes the specific timing of the WGR’s HSL update to ERCOT and specifies that, when not curtailed, the WGR’s HSL should equal the WGR’s current meter reading.

Market ImpactMarket Impact None.None.

System ChangeSystem Change None.None. N/AN/A

PRS VotePRS Vote PRS voted to recommend approval of NPRR214 as amended by the 3/16/10 Luminant comments. There was one abstention from the Consumer Market Segment.




NPRR214, Wind-powered NPRR214, Wind-powered Generation Resource (WGR) High Generation Resource (WGR) High

Sustained Limit (HSL) Update Sustained Limit (HSL) Update Process Process



BudgetBudget

StaffingStaffing




ImpactImpact

Withdrawals and Withdrawals and RejectionsRejections

NPRR215, Resolution of Alignment NPRR215, Resolution of Alignment Item A151 - Removal of Posting Item A151 - Removal of Posting Requirement for RMR Services - Requirement for RMR Services - Withdrawn Withdrawn

PRR848, Allow ERCOT Option to PRR848, Allow ERCOT Option to Cancel RPRS Capacity Commitments - Cancel RPRS Capacity Commitments - RejectedRejected

Parking Deck PriorityParking Deck PriorityNone this monthNone this month

PRR/NPRR SummaryPRR/NPRR SummaryRevision Requests Unanimously Recommended for Approval Revision Requests Unanimously Recommended for Approval with No Impactswith No ImpactsNoneNone

Revision Requests Not Unanimously Recommended for Revision Requests Not Unanimously Recommended for Approval with No ImpactsApproval with No ImpactsNPRR209, Data Posting Changes to Comply with P.U.C. SUBST. R. NPRR209, Data Posting Changes to Comply with P.U.C. SUBST. R. 25.50525.505NPRR211, Clarify Capacity Obligations of Energy Trades (formerly NPRR211, Clarify Capacity Obligations of Energy Trades (formerly “Modify RUC Capacity Short Charge to Use Final Energy Trades”) “Modify RUC Capacity Short Charge to Use Final Energy Trades”) NPRR214, Wind-powered Generation Resource (WGR) High NPRR214, Wind-powered Generation Resource (WGR) High Sustained Limit (HSL) Update Process Sustained Limit (HSL) Update Process

Revision Requests Unanimously Recommended for Approval Revision Requests Unanimously Recommended for Approval with Impactswith ImpactsNoneNone

Revision Requests Not Unanimously Recommended for Revision Requests Not Unanimously Recommended for Approval with ImpactsApproval with ImpactsNPRR207, Unit Deselection (formerly “Hour Start Unit NPRR207, Unit Deselection (formerly “Hour Start Unit Deselection and Half Hour Start Unit RUC Clawback”) Deselection and Half Hour Start Unit RUC Clawback”)

2010 PRR Approval Cycle 2010 PRR Approval Cycle – Normal Timeline– Normal Timeline

PRR Posting

Deadline

PRSConsideration

PRSCBA/IAReview

TACConsideration

BoardConsideration

EffectiveDate

23-Dec 21-Jan 18-Feb 4-Mar 23-Mar 4/1/10

22-Jan 18-Feb 25-Mar 8-Apr 18-May 6/1/10

26-Feb 25-Mar 22-Apr 6-May 15-Jun 7/1/10

26-Mar 22-Apr 20-May 3-Jun 20-Jul 8/1/10

23-Apr 20-May 17-Jun 1-Jul 20-Jul 8/1/10

21-May 17-Jun 22-Jul 5-Aug 21-Sep 10/1/10

25-Jun 22-Jul 19-Aug 2-Sep 21-Sep 10/1/10

23-Jul 19-Aug 23-Sep 7-Oct 16-Nov 12/1/10

Nodal Parking Deck - Approved by ERCOT

BoardSource Source DocumDocum

ententTitleTitle PrioritPriorit

yyCurrent StatusCurrent Status

NPRR131 Ancillary Service Trades with ERCOT HighBoard Approved

1/19/10

NPRR181 FIP Definition Revision HighBoard Approved

1/19/10

NPRR153Generation Resource Fixed Quantity Block Offer

MediumBoard Approved

1/19/10

NPRR164Resubmitting Ancillary Service offers in SASM

MediumBoard Approved

1/19/10

SCR755 ERCOT.com Website Enhancements MediumBoard approved

2/16/10

Nodal Parking Deck – Pending Approval

Source Source DocumentDocument TitleTitle Suggested Suggested

PriorityPriority Current StatusCurrent Status

NPRR146ICCP Telemetry Information Submittals

TBDTabled at TACPRS approved

2/19/09

NPRR207Unit Deselection (formerly “Hour Start Unit Deselection and Half Hour Start Unit RUC Clawback”).

TBDPending at TACPRS approved

4/22/10

NPRR222Half-Hour Start Unit RUC Clawback (Companion to NPRR207).

TBDPending at PRSPRS approved

4/22/10

SCR756Enhancements to the MarkeTrack Application

TBD Tabled at RMS

Protocol Revision Subcommittee

Documents

Transcript of Protocol Revision Subcommittee