Market Information System Grid and Market Conditions

TAC Meeting by Webex Only

March 24, 2021
09:30 AM


Webex Conference

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.


January 27, 2021


March 5, 2021



March 12th Board Update

Clif Lange

9:40 a.m.


Winter Storm Issues Review

Clif Lange

9:45 a.m.

  •  Natural Gas Critical Load

Liz Jones



TAC Open Action Items Review

Clif Lange

10:15 a.m.


2021 TAC Goals and Strategic Initiatives (Vote)

Clif Lange

10:30 a.m.


Passport Update/Discussion (Possible Vote)


10:50 a.m.


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

Matt Mereness


Creation of Passport Implementation Task Force


Sunsetting of Battery Energy Storage Task Force (BESTF)

Kenneth Ragsdale



PRS Report (Vote)

Martha Henson

11:10 a.m.


NPRR1023, Change to CRR Repossession Process


NPRR1045, Transmission Operator Definition and Designation


NPRR1057, Modification to Real-Time Hub Price Formulas for Fully De-Energized Hubs


NPRR1059, Ability for MOUs and ECs to Send Non-BUSIDRRQ Interval Data


NPRR1060, Improvements to ERS Testing Requirements and Other ERS Items


NPRR1065, Implementation Adjustment for NPRR917


NPRR1066, Interconnection of Existing Generation Owned by a Municipally Owned Utility (MOU) or Electric Cooperative (EC) Transferring Load into the ERCOT System


NPRR1069, Align Ancillary Service Responsibility for ESRs with NPRR987 - URGENT


Other Binding Document List


PRS Goals



Revision Requests Tabled at TAC (Vote)

Clif Lange

11:30 a.m.


NOGRR210, Related to NPRR1005, Clarify Definition of Point of Interconnection (POI) and Add Definition Point of Interconnection Bus (POIB)


RRGRR025, Related to NPRR1005, Clarify Definition of Point of Interconnection (POI) and Add Definition Point of Interconnection Bus (POIB)


OBDRR025, Clarification for the RRS Limit on Individual Non-Thermal Generation Resources – Notice of Withdrawal



Other Binding Document Revision Requests (Vote)


11:35 a.m.


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

Carrie Bivens


OBDRR027, Clarify Implementation Timeline for OBDRR023


OBDRR028, Related to NPRR1069, Align Ancillary Service Responsibility for ESRs with NPRR987

Mark Patterson



WMS Report

Resmi Surendran

11:55 a.m.


ROS Report (Vote)

Chase Smith

12:15 p.m.


NOGRR219, Related to NPRR1045, Transmission Operator Definition and Designation



RMS Report (Vote)

Jim Lee

12:35 p.m.


RMGRR164, Related to NPRR1062, Modify IDR Meter Requirement and Eliminate IDR Meter Requirement Report



ERCOT Reports


12:55 p.m.

  • Potential Price Correction – Software Error Impacting Real-Time Market Prices
David Maggio  


Other Business


1:20 p.m.


NPRR902 Implementation Update

Jon Levine



Combo Ballot (Vote)

Clif Lange

1:25 p.m.




1:30 p.m.

Scheduled TAC Meetings