Market Information System Grid and Market Conditions

TAC Meeting by Webex Only

August 27, 2021
09:30 AM
Teleconference: 877-668-4493
Meeting number: 182 669 0941
Meeting password: YmC2F#


TAC Standing Representatives intending to vote should join through Webex and have access to their company email.

  • Submit Alternate Representative or Proxy designations by 3PM no later than one day prior to the meeting
  • An email with a unique validation code will be sent to all TAC Standing Representatives and their designated Alternative Representative
    • To allow validation of your login and ensure your ability to vote in the meeting as a representative of your company, please copy and paste your login given in the email when logging into the WebEx
  • If you are using a phone for audio, please associate your phone to your name by using the "Call me" option (easiest) or the "Call in" option and enter your assigned Attendee ID when prompted
  • All votes will be conducted via roll call
  • Use the Chat function to queue for comments/motions (not Raise Hand or commenting from the phone) – reply to Everyone
  • Log in to Webex 15 minutes prior to the meeting start so that quorum can be established and logins can be validated



Antitrust Admonition

Clif Lange

9:30 a.m.


Approval of TAC Meeting Minutes (Vote)

Clif Lange

9:35 a.m.


July 28, 2021



August Board Update

Clif Lange

9:40 a.m.


Emergency Conditions Issues List Review (Possible Vote)

Clif Lange

10:05 a.m.


Passport Update/Discussion

Matt Mereness

10:25 a.m.


Sunsetting of Real-Time Co-Optimization Task Force (RTCTF) (Vote)



TAC Procedures (Possible Vote)

Ann Boren

10:35 a.m.


PRS Report (Vote)

Martha Henson

10:50 a.m.


SCR813, NMMS Jointly-Rated Equipment Coordination Confirmation


SCR814, Point-to-Point (PTP) Obligation Bid Interval Limit



Revision Requests Tabled at TAC (Vote)

Clif Lange

11:10 a.m.


OBDRR026, Change Shadow Price Caps to Curves and Remove Shift Factor Threshold



RMS Report (Vote)

Jim Lee

11:15 a.m.


RMGRR167, Switch Hold Removal Documentation Clarification



ROS Report (Vote)

Chase Smith

11:35 a.m.


RRGRR030, Allow New Voltage Levels in Resource Registration Information


RRGRR031, Related to NPRR995, RTF-6 Create Definition and Terms for Settlement Only Energy Storage


NOGRR227, Add Phasor Measurement Recording Equipment Location for Main Power Transformer for Intermittent Renewable Resource (IRR)



WMS Report

Resmi Surendran

11:55 a.m.


NRG Application for Permanent Site-Specific Exemption from Compliance with ERCOT Nodal Metering Protocols, Section (Vote)

Bill Barnes

12:15 p.m.


ERCOT Reports


12:30 p.m.


Ancillary Services Changes Update

Jeff Billo


Cost Impacts

David Maggio  


Other Business


1:00 p.m.


TAC/TAC Subcommittee Structural and Procedural Review

Clif Lange


Revision Request Timeline Updates


Update on Resumption of In-Person Stakeholder Meetings

Ann Boren



Combo Ballot (Vote)

Clif Lange

1:15 p.m.




1:30 p.m.

Scheduled TAC Meetings