Wholesale Market Subcommittee (WMS) Meeting

    February 13, 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: 651 759 039
    Meeting password: WMSm123!!



    Antitrust Admonition 

    S. Cochran

    9:30 a.m.


    Approval of Meeting Minutes (Vote)

    • January 9, 2013 

    S. Cochran

    9:40 a.m.


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

    S. Cochran

    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 (See ETWG Update)
    • Potential Locational Marginal Price (LMP) Variance From Power Storage Operation (See CMWG Update)
    • Other TAC Assignments 

    S. Cochran

    9:50 a.m.


    ERCOT Operations and Market Items:

    • NPRR429, HASL Offset Provision, Draft Alternative NPRR discussion (Possible Vote)
    • Draft NPRR, Reliability Must Run (RMR) Service Revisions (Possible Vote)
    • Day-Ahead Market analysis of Feb 6 Ancillary Service prices 


    I. Flores

    I. González

    D. Jones

    M. Mereness

    10:00 a.m.


    Generation Adequacy Task Force (GATF)

    • Review of 2012 Loss of Load Study Results
    • GATF Consensus Item Concerning Study Results
    • WMS Recommendation of Reserve Margin (Vote)
    • Discuss Upcoming PUCT Workshop and Future GATF Meetings 

    A. Pieniazek

    10:25 a.m.


    Congestion Management Working Group (CMWG)

    • Confirm Chair and Vice Chair (Vote)
    • General Update
    • Rolling Auction Implementation Bid Limit Recommendation (Possible Vote)
    • Congestion Revenue Rights (CRR) Auction Revenue Distribution (CARD) Expiration
    • Over-mitigation in Security Constrained Economic Dispatch (SCED)
    • Issue:  First Long Term Auction Sequence (Possible Vote

    M. Wagner

    11:15 a.m.


    Emerging Technologies Working Group

    • Confirm Chair and Vice Chair (Vote)
    • Recommendation Regarding NPRR461, Energy Storage Settlements Consistent With PUCT Project 39917, and Definition of Wholesale Storage Load (WSL) (Possible Vote)
    • Caps and Floors for Compressed Air Energy Storage (CAES) 

    M. Bruce

    11:40 a.m.





    12:00 p.m.


    Demand Side Working Group (DSWG)

    • Confirm Chair and Vice Chair
    • General Update
    • Draft NPRR, T&D loss Adjustments for DR Resources (Possible Vote)
    • DSWG 2013 Goals 

    T. Carter

    1:00 p.m.


    QSE Managers Working Group (QMWG)

    • Confirm Chair and Vice Chair (Vote)
    • 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)
    • Wind Forecast Accuracy Review
    • Wind Generation Resource Energy Deployment Performance (GREDP) Calculation Revision to Incorporate Curtailment Flag Update
    • Revision to GREDP Cost of Ramping
    • 2013 Ancillary Services Methodology (Vote)
    • NPRR219, Outages for Resource Owned Equipment and Clarification of Changes in Status of Transmission Element Postings (Possible Vote)
    • NOGRR050, Resolution Reporting Issues Related to NPRR219 (Possible Vote)
    • NPRR503, Removal of Language Related to NPRR219 (Possible Vote)
    • SCR770, Revision to Outage Scheduler Entry for Resource Maintenance Outage Level Designation Project information 

    S. Looney



    1:30 p.m.


    Resource Cost Working Group (RCWG)

    • General Update
    • Confirm Chair and Vice Chair (Vote)
    • Long Term Fuel Cost Solution for Fuel Adder (Possible Vote)
    • Verifiable Cost Manual Change Control Procedure (Possible Vote)
      • NPRR516, Change to Verifiable Cost Manual Revision Process
      • QSGR Manual Override hours removed from the calculation of mitigated offer cap
      • Procedure for Determining Actual Fuel Costs for RUC Make-Whole Disputes
      • Nodal surcharge language removal
      • Other minor corrections

    B. Hellinghausen


    2:45 p.m.


    Market Credit Working Group (MCWG)

    • General Update
    • Letter of Credit Concentration Subgroup  - Update 

    M. Holler

    3:15 p.m.


    Other Business

    • Draft SCR: DC-Tie eTag Confirmation 

    S. Cochran

    3:30 p.m.


    Metering Working Group (MWG) - No Update

    D. DiSanto







    3:45 p.m.

    Scheduled WMS Meetings