Wholesale Market Subcommittee (WMS) Meeting

March 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: 658 191 376
Meeting password: WMSm123!!



Antitrust Admonition 

S. Cochran

9:30 a.m.


Approval of Meeting Minutes (Vote)

  • February 13, 2013 

S. Cochran

9:35 a.m.


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

  • NPRR511, Correction to Emergency Energy Settlement Language
  • NPRR520, Real-Time Mitigation Rules and Creation of a real-Time Constraint Competitiveness Test
  • Initiate the Resource Adequacy Task Force (RATF)
  • Proposed Revisions to Methodology for Setting Max Shadow Prices

S. Cochran

9:40 a.m.


ERCOT Operations and Market Items:

  • NPRR429, HASL Offset Provision, Draft Alternative NPRR discussion (Possible Vote)
  • Day-Ahead Market (DAM) analysis of Feb 6 Ancillary Service Prices
  • Reactive Capability and Testing Workshop


S. Sharma

M. Mereness

S. Sharma

9:45 a.m.


Availability of Quick Start Generation Resources (QSGRs)

B. Jones 

10:05 a.m.


Metering Working Group (MWG)

  • Confirm Chair and Vice Chair (Vote

D. DiSanto

10:25 a.m.


Generation Adequacy Task Force (GATF)

  • Review of 2012 Loss of Load Probability (LOLP) Study Results
  • WMS Recommendation of Reserve Margin (Vote)
  • Discuss PUCT Workshop and Future GATF Meetings 

A. Pieniazek

10:30 a.m.


Congestion Management Working Group (CMWG)

  • General Update
  • NPRR503, Recommendation for Transmission Outage Report (Vote)
  • Rolling Auction Implementation Transaction Limit Recommendation (Vote)

M. Wagner 



M. Mereness

11:15 a.m.


Demand Side Working Group (DSWG)

  • General Update
  • DSWG 2013 Goals
  • Draft NPRR, Performance Measurement & Verification and Telemetry Requirements for Load Resources Providing Non-Spin (Vote)
  • DSWG Comments to NPRR522, Adjustment of Demand Response Performance for T&D Losses (Possible Vote

T. Carter

12:00 p.m.




12:30 p.m.


Emerging Technologies Working Group

General Update 

M. Bruce

1:30 p.m.


Market Credit Working Group (MCWG)

  • General Update
  • Confirm Chair & Vice Chair (Vote)
  • NPRR519, Exemption of ERS-Only QSEs from Collateral and Capitalization Requirements - (Vote)
  • Letter of Credit Concentration Subgroup - Update 

M. Holler

2:00 p.m.


QSE Managers Working Group (QMWG)

  • General Update
  • Wind Generation Resource Energy Deployment Performance (GREDP) Calculation Revision to Incorporate Curtailment Flag - Update
  • Revision to GREDP - Cost of Ramping
  • SCR770, Revision to Outage Scheduler Entry for Resource Maintenance Outage Level Designation - Project information
  • Reactive Capability and Testing Workshop
  • New Generation Resource Integration Guide
  • NPRR515, Day-Ahead Market Self-Commitment of Generation Resources, (Vote

S. Looney



2:30 p.m.


Resource Cost Working Group (RCWG)

  • General Update
  • Long Term Fuel Cost Solution for Fuel Adder (Vote)
  • Verifiable Cost Manual - Incorporation of NPRR511 (Vote

B. Hellinghausen


3:00 p.m.


Other Business

  • QSTF Sunset (Vote)
  • Draft SCR: DC-Tie eTag Confirmation 

S. Cochran

3:30 p.m.




 3:35 p.m.



Open Action items from Previous Meeting(s)

  • Criteria for Load Provided Capacity - RCWG
  • Regular Updates on Future Credit Designs - MCWG
  • Revision to Constraint Competitiveness Tests Methodology - CMWG
  • Method for Distributing Congestion Revenue Rights (CRR) Auction Revenues - CMWG
  • Alternatives to Definition of Wholesale Storage Load Created by NPRR461, Energy Storage Settlements Consistent With PUCT Project 39917 - ETWG



Scheduled WMS Meetings