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Wholesale Market Subcommittee (WMS) Meeting

December 05, 2012
9:30 AM - 4:00 PM
ERCOT Austin Room 206
7620 Metro Center Dr.
Austin, TX 78744
Teleconference: 1-877-668-4493
Meeting number: 655 732 655
Meeting password: WMSm123!!



Antitrust Admonition 

J. Bevill

9:30 a.m.


Approval of Meeting Minutes (Vote)

  • November 7, 2012 

J. Bevill

9:35 a.m.


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

J. Bevill

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)
  • PGRR018, Clarify the Prerequisites for Adding a New Generation Resource to the Planning Models and Capacity Demand and Reserves Report
  • NPRR489, Planning Reserve Margin
  • Other TAC Assignments 

J. Bevill

9:50 a.m.


ERCOT Operations and Market Items:

  • ERCOT update on Market Enhancement Task Force (METF) (Possible Vote)
  • NPRR429, HASL Offset Provision, Draft Alternative NPRR discussion
  • Review minimum Point-to-Point (PTP) Option Bid Price (Possible Vote)
  • Reminder of CRR Auction Revenue Distribution (CARD) expiration in late 2013
  • Procedure for Determining Actual Fuel Costs for RUC Make-Whole Disputes


K. Ragsdale

I. Flores 

I. Flores 

M. Mereness

I. Gonzalez

10:00 a.m.


NPRR491, Updated Distributed Generation and Demand Response Information for ERCOT, Deferred to WMS by PRS (Possible Vote

J. Bevill

10:45 a.m.


Generation Adequacy Task Force (GATF)

  • Update on 12/3/2012 Meeting
  • ERCOT’s Review of the Most Recent Long-Term Load Forecast
  • Status of 2012 Loss of Load Expectation (LOLE) Study
  • Status of December 2012 CDR and possible modifications to May 2014 CDR

A. Pieniazek

11:00 a.m.


Demand Side Working Group (DSWG)

  • Emergency Response Service (ERS) Update
  • Price Responsive Load Subgroup Update
  • Aggregated Load Resource (ALR) Subgroup Update
  • Draft NPRR, Weather Sensitive Load (Possible Vote

T. Carter

11:30 a.m.





12:00 p.m.


Congestion Management Working Group (CMWG)

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

M. Wagner

1:00 p.m.


QSE Managers Working Group (QMWG)

  • General Update
  • NPRR486, Calculation of Generation to be Dispatched (Possible Vote)
  • Seven-Day Load Forecast and Non-Spinning Reserve (Non-Spin) bias - Recommendation (Possible Vote)
  • Wind Forecast Accuracy Review
  • New Generation Resource Commissioning Process
  • Wind Generation Resource Energy Deployment Performance (GREDP) Calculation Revision to Incorporate Curtailment Flag - Update
  • Reactive Testing Reporting Process
  • GREDP and High Dispatch limit (HDL) / Low Dispatch Limit (LDL) Reports 

S. Looney



1:30 p.m.


Resource Cost Working Group (RCWG)

  • General Update
  • NPRR444, Supplemental Reliability Deployments - Recommendations (Possible Vote)
  • Verifiable Cost Manual - Alignment with NPRR485 (Vote)
  • White Paper - Long Term Fuel Cost Solution - Fuel Adder Issue  

B. Hellinghausen


2:00 p.m.


Other Business

J. Bevill 

2:30 p.m.


  • Emerging Technology Working Group (ETWG) - Sunset (Vote

J. Bevill



Market Credit Working Group (MCWG) - No Update

M. Holler



Metering Working Group (MWG) - No Update 

D. DiSanto




Future WMS Meetings

  • January 9, 2012


2:45 p.m.