Market Information System Grid and Market Conditions

ROS Meeting by Webex Only

April 29, 2021
09:30 AM
Teleconference: 877-668-4493
Meeting number: 182 618 9789
Meeting password: Vc83m#


ROS 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 ROS 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 log ins can be validated


Validation for ROS Standing Representatives

Suzy Clifton

9:15 a.m.


Antitrust Admonition

Chase Smith

9:30 a.m.


Agenda Review

Chase Smith



Approval of ROS Meeting Minutes (Vote)

Chase Smith

9:35 a.m.


April 1, 2021



Technical Advisory Committee (TAC) Update

Chase Smith

9:40 a.m.


Emergency Conditions Issues List



2021 ROS Goals (Possible Vote)

Chase Smith

10:10 a.m.


ERCOT Reports


10:20 a.m.


Operations Report



System Planning Report

Ping Yan


Generic Transmission Constraint (GTC) Update

Yunzhi Cheng


TSAT models update

Mehdi Daryabak



Urgency Vote(s) (Vote)

Chase Smith

10:50 a.m.


PGRR090, Additional Flexibility for Updates to Seasonal Net Max Sustainable Rating



New Protocol Revision Subcommittee (PRS) Referrals (Vote)

Chase Smith

11:10 a.m.


NPRR1070, Planning Criteria for GTC Exit Solutions


SCR813, NMMS Jointly-Rated Equipment Coordination Confirmation



Revision Requests Tabled at PRS, Referred to ROS (Possible Vote)

Chase Smith

11:40 a.m.


NPRR1063, Dynamic Rating Transparency



System Protection Working Group (SPWG)

Vincent Roberts

11:45 a.m.


ROS Revision Requests (Vote)

Chase Smith

11:55 a.m.


Impact Analysis Review


RRGRR028, Transformer Impedance Clarifications


PGRR088, Include Financial Security Amount in the Monthly Generator Interconnection Status Report



Revision Requests Tabled at ROS (Possible Vote)

Chase Smith

12:05 p.m.


PGRR073, Related to NPRR956, Designation of Providers of Transmission Additions



Planning Working Group (PLWG)

Charles DeWitt

12:10 p.m.


PGRR089, Planning Data and Information Updates for Planning Posting (Possible Vote)


NPRR1056, Market Impact Generic Transmission Constraint (GTC) Notification (Possible Vote) (OWG/PLWG)



Operations Working Group (OWG)

Rickey Floyd

12:20 p.m.


NOGRR215, Limit Use of Remedial Action Schemes (Possible Vote)


NOGRR223, Add Phasor Measurement Recording Equipment Requirement to Modified Generating Facilities in Interconnection Process (Possible Vote)



Combo Ballot (Vote)

Chase Smith

12:25 p.m.


Performance Disturbance Compliance Working Group (PDCWG)

Chad Mulholland

12:30 p.m.


Network Data Support Working Group (NDSWG)

J-M Yatar

12:35 p.m.


Steady State Working Group (SSWG)

Chenyan Guo

12:45 p.m.


Voltage Profile Working Group (VPWG)

Scot Williams

12:55 p.m.


Black Start Working Group (BSWG)

Tony Kroskey

1:05 p.m.


Other Business

Chase Smith

1:15 p.m.


Review Open Action Items List


No Report:


Dynamic Working Group (DWG)


Operations Training Working Group (OTWG)


Planning Geomagnetic Disturbance Task Force (PGDTF)


System Protection Working Group (SPWG)



Chase Smith

1:30 p.m.

Scheduled ROS Meetings