TAC Meeting by Webex Only

September 23, 2020
09:30 AM


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

B. Helton

9:30 a.m.


Approval of TAC Meeting Minutes (Vote)

B. Helton

9:35 a.m.

August 26, 2020


TAC/TAC Subcommittee Structural and Procedural Review (Vote)

B. Helton

9:40 a.m.

Alignment of TAC Goals and Approved Revision Requests

Subcommittee/Working Group/Task Force Assessment

Open Action Items


PRS Report (Vote)

M. Henson

10:00 a.m.

NPRR999, DC Tie Ramp Limitations

NPRR1025, Remove Real-Time On-Line Reliability Deployment Price from Ancillary Service Imbalance Calculation – URGENT

NPRR1033, Clarification of Financial Security Interest Payment and Withholding Processes Upon Termination of Market Participant Standard Form Agreement

NPRR1035, DC Tie Schedules Protected Information Expiry and Posting

NPRR1036, Late Payment Enforcement Provisions

NPRR1037, Correction to the Settlement of Switchable Generation Resources (SWGRs) Instructed to Switch to ERCOT

NPRR1038, BESTF-8 Limited Exemption from Reactive Power Requirements for Certain Energy Storage Resources - URGENT

SCR811, Addition of Intra-Hour PhotoVoltaic Power Forecast to GTBD Calculation – URGENT

Notice of Withdrawal - NPRR966, Changes to Support Reactive Power Coordination Tool


Revision Requests Tabled at TAC (Possible Vote)

B. Helton

10:20 a.m.

OBDRR020, RTC – Methodology for Setting Maximum Shadow Prices for Network and Power Balance Constraints


ROS Report (Vote)

K. Bunch

10:25 a.m.

NOGRR214, GMD Measurement Data Reporting

NOGRR218, Removal of Annual Disturbance Monitoring Equipment Database Submission Requirement – URGENT

PGRR077, DC Tie Planning Assumptions

Major Transmission Elements (MTE) List


WMS Report

D. Kee

10:45 a.m.


RMS Report

E. Blakey

11:05 a.m.


Real-Time Cooptimization Task Force (RTCTF) Report

M. Mereness

11:25 a.m.


Battery Energy Storage Task Force (BESTF) Report

K. Ragsdale

11:35 a.m.


Discussion of 2% Rule

K. Ogelman

11:50 p.m.


ERCOT Reports

12:10 p.m.

NPRR902 Implementation Update

J. Levine

Under-Frequency Load Shedding (UFLS) Survey Results

D. Sanchez

Day-Ahead and Real-Time Market Price Correction for Incorrect Transformer Ratings

D. Maggio

Day-Ahead Market Price Correction for Incorrect RAS Modeling


Other Business

12:50 p.m.


1:00 p.m.

Scheduled TAC Meetings

Key Documents

Nov 9, 2020 - doc - 230.5 KB
Sep 22, 2020 - doc - 116 KB
Sep 23, 2020 - xls - 131 KB
Sep 23, 2020 - xls - 136.5 KB
Sep 23, 2020 - xls - 128.5 KB
Sep 21, 2020 - doc - 225 KB
Sep 16, 2020 - zip - 968.3 KB
Sep 16, 2020 - zip - 572.1 KB
Sep 23, 2020 - pptx - 319.6 KB
Feb 25, 2021 - xlsx - 53.5 KB
Sep 21, 2020 - pdf - 436.6 KB
Sep 16, 2020 - pptx - 106.1 KB
Sep 22, 2020 - pptx - 183.4 KB
Sep 16, 2020 - pptx - 141.4 KB
Sep 22, 2020 - zip - 10.4 MB
Sep 22, 2020 - docx - 14.5 KB

All information is posted as Public in accordance with the ERCOT Websites Content Management Corporate Standard.

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