ROS Meeting

September 05, 2019
09:30 AM
ERCOT Austin
8000 Metropolis (Building E), Suite 100
Austin, TX 78744
Room 206
Teleconference: 877-668-4493
Meeting number: 621 903 951
Meeting password: ROS



Antitrust Admonition

K. Bunch

9:30 a.m.


Agenda Review

K. Bunch



Approval of ROS Meeting Minutes (Vote)

K. Bunch

9:35 a.m.


August 8, 2019



Technical Advisory Committee (TAC) Update

K. Bunch

 9:40 a.m.


ERCOT Reports


9:45 a.m.


Operations Report



System Planning Report

F. Huang


August 13 and August 15, 2019 Energy Emergency Alert (EEA) Update

D. Woodfin


UFLS Survey Results

D. Sanchez


Inverter-Based Resources Workshop follow up Update

F. Huang


Dynamic Model Improvement Update

F. Huang


NPRR966, Changes to Support Reactive Power Coordination Tool and Workshop

S. Solis



New Protocol Revision Subcommittee (PRS) Referrals (Vote)

K. Bunch

11:05 a.m.


NPRR963, Creation of Generation and Controllable Load Resource Group (GCLR Group)


NPRR964, Improvement of RMR Process and Removal of Synchronous Condenser Unit and Agreement



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

K. Bunch

11:35 a.m.


NPRR950, Switchable Generation Resources Providing Black Start Service


NPRR953, Addition of Relay Loadability Rating Definition (SPWG) (SSWG)




12:05 p.m.


ROS Revision Requests (Vote)

K. Bunch

1:15 p.m.


Language Review


NOGRR195, Generator Voltage Control Tolerance Band


Impact Analysis Review


PGRR072, Treatment of Generation Resource Retirement and Mothball in Regional Transmission Plan and Geomagnetic Disturbance Vulnerability Assessment


NOGRR194, Relocate Black Start Training Attendance Requirements to Nodal Operating Guides



Revision Requests Tabled at ROS (Possible Vote)

K. Bunch

 1:35 p.m.


PGRR071, Update Interconnection Process Timetables to Align with NPRR926 (PLWG)


PGRR073, Related to NPRR956, Designation of Providers of Transmission Additions (Possible Vote)



Performance Disturbance Compliance Working Group (PDCWG)

C. Mulholland

1:45 p.m.


NPRR919, Exemption from Governor Primary Frequency Response Control for Certain Resources in Private Use Networks (PDCWG) (Possible Vote)


NOGRR184, Related to NPRR919, Exemption from Governor Primary Frequency Response Control for Certain Resources in Private Use Networks (PDCWG) (Possible Vote)


SCR800, Addition of DC Tie Ramp to GTBD Calculation (PDCWG) (Possible Vote)


Methodology to Calculate RRS Limits (Vote)



Operations Working Group (OWG)

R. Floyd

2:05 p.m.


NOGRR183, Remedial Action Scheme (RAS) Submittal and Review Requirements (PLWG/OWG) (Possible Vote)


NPRR937, Distribution Voltage Level Block Load Transfer (BLT) Deployment (OWG) (Possible Vote)


NOGRR190, Related to NPRR937, Distribution Voltage Level Block Load Transfer (BLT) Deployment (OWG) (Possible Vote)


NPRR955, Define Limited Impact Remedial Action Scheme (RAS) (Possible Vote)


High Impact Transmission Elements (HITE) List (Possible Vote)



Steady State Working Group (SSWG)

B. Hithersay

2:25 p.m.


SSWG Procedural Manual (Vote)



Planning Geomagnetic Disturbance Task Force (PGDTF)

A. Amahatsion

 2:35 p.m.


Voltage Profile Working Group (VPWG)

M. Lewis

 2:45 p.m.


Other Business

K. Bunch

2:55 p.m.


Energy Storage Update

W. Lasher


Annual TAC Subcommittee Structural Review


2020 Meeting Schedule


Review Open Action Items


No Report:


Black Start Working Group (BSWG)


Dynamics Working Group (DWG)


Network Data Support Working Group (NDSWG)


Planning Working Group (PLWG)


Operations Training Working Group (OTWG)


System Protection Working Group (SPWG)



K. Bunch

3:25 p.m.

Scheduled ROS Meetings

Key Documents

Oct 16, 2019 - doc - 199 KB
Aug 29, 2019 - docx - 37.5 KB
Sep 4, 2019 - pptx - 7.8 MB
Aug 29, 2019 - pptx - 86.2 KB
Sep 3, 2019 - pdf - 308 KB
Aug 30, 2019 - pptx - 338.3 KB
Aug 29, 2019 - pptx - 1.4 MB
Sep 3, 2019 - pptx - 45.7 KB
Aug 30, 2019 - ppt - 592.5 KB
Aug 21, 2019 - docx - 369.2 KB
Aug 9, 2019 - docx - 538.2 KB
Sep 4, 2019 - zip - 6.5 MB
Aug 29, 2019 - zip - 1.4 MB

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