Wholesale Market Subcommittee (WMS) Meeting

    January 09, 2013
    9:30 AM - 3:30 PM
    ERCOT Austin Room 206
    7620 Metro Center Dr.
    Austin, TX 78744
    Teleconference: 1-877-668-4493
    Meeting number: 655 539 330
    Meeting password: WMSm123!!



    Antitrust Admonition 


    9:30 a.m.


    Election of WMS Chair and Vice Chair (Vote)

    • Welcome New Members 


    9:35 a.m.


    Approval of Meeting Minutes (Vote)

    • December 5, 2012 

    WMS Chair

    9:40 a.m.


    ERCOT Technical Advisory Committee (TAC) and Public Utility Commission of Texas (PUCT) Updates 

    WMS Chair

    9:40 a.m.


    TAC Assignments (Possible Vote)

    • Criteria for Load Provided Capacity - RCWG
    • Regular Updates on Future Credit Designs - MCWG
    • Revision to Constraint Competitiveness Tests Methodology - CMWG (See CMWG Update)
    • Method for Distributing Congestion Revenue Rights (CRR) Auction Revenues - CMWG (See CMWG Update)
    • Alternatives to Definition of Wholesale Storage Load Created by NPRR461, Energy Storage Settlements Consistent With PUCT Project 39917
    • Potential Locational Marginal Price Variance From Power Storage Operation
    • Other TAC Assignments 

    WMS Chair

    9:50 a.m.


    ERCOT Operations and Market Items:

    • NPRR429, HASL Offset Provision, Draft Alternative NPRR discussion
    • ERCOT Rolling Auction update (NPRR463) - Review Draft CRR Auction Calendar (Possible Vote)
    • Confidentiality of Reliability Must-Run (RMR) Unit Heat Rate Information (Possible Vote)
    • 2013 Ancillary Services Methodology (Vote)
    • Market Impacts of the Dollar Value of Energy for Generation Resources Committed by the RUC Process Per Protocol Section, Energy Offer Curve for RUC-Committed Resources


    I. Flores

    M. Mereness

    I. González 

    C. Thompson

    R. Surendran

    10:00 a.m.


    NPRR219, Outages for Resource Owned Equipment and Clarification of Changes in Status of Transmission Element Postings (Possible Vote

    WMS Chair

    10:30 a.m.


    NOGRR050, Resolution Reporting Issues Related to NPRR219 (Possible Vote

    WMS Chair

    10:35 a.m.


    NPRR503, Removal of Language Related to NPRR219 (Possible Vote

    WMS Chair

    10:45 a.m.


    Congestion Management Working Group (CMWG)

    • General Update
    • DRAFT NPRR, Over-mitigation in SCED (Possible Vote)
    • Revisions to Methodology for Setting Max Shadow Price Other Binding Document (OBD) (Vote)
    • NPRR484, Revisions to Congestion Revenue Rights Credit Calculations and Payments (Possible Vote)
    • CRR Auction Revenue Distribution (CARD) Expiration 

    M. Wagner

    11:00 a.m.


    Generation Adequacy Task Force (GATF)

    • General Update
    • Review of 2012 Loss of Load Expectation (LOLE) Study Results

    A. Pieniazek

    11:30 a.m.





    11:45 a.m.


    Demand Side Working Group (DSWG)

    • NPRR505, ERS Weather-Sensitive Loads (Possible Vote)


    P. Wattles

    1:00 p.m.


    QSE Managers Working Group (QMWG)

    • General Update
    • NPRR486, Calculation of Generation to be Dispatched (Possible Vote)
    • NPRR491, Updated Distributed Generation and Demand Response Information for ERCOT Referred to WMS by PRS (Possible Vote)
    • NPRR495, Changes to Ancillary Services Capacity Monitor (Possible Vote)
    • 30 min ERS Pilot Review Pilot Results for Recommendations (Possible Vote)
    • Wind Forecast Accuracy Review
    • Wind Generation Resource Energy Deployment Performance (GREDP) Calculation Revision to Incorporate Curtailment Flag Update
    • GREDP and High Dispatch limit (HDL) / Low Dispatch Limit (LDL) Reports
    • Review of draft 2013 Ancillary Service Methodology
    • Discussion of Wind GREDP Revisions 

    S. Looney



    1:30 p.m.


    Resource Cost Working Group (RCWG)

    • General Update
    • NPRR444, Supplemental Reliability Deployments - Recommendations (Possible Vote)
    • Procedure for Determining Actual Fuel Costs for RUC Make-Whole Disputes
    • Long Term Solution on the Value of X (VOX) for short term gas purchase and shaping
    • Draft NPRR Clarifications for RMR Settlement
    • Verifiable Cost Manual Change Control Procedure

    B. Hellinghausen


    2:00 p.m.


    Other Business

    • Emerging Technology Working Group (ETWG) 

    WMS Chair

    2:30 p.m.


    Market Credit Working Group (MCWG) - No Update

    M. Holler



    Metering Working Group (MWG) - No Update

    D. DiSanto





    2:45 p.m.

    Scheduled WMS Meetings