PGRR #119 · Revision Request

PGRR119 Stability Constraint Modeling Assumptions in the Regional Transmission Plan

Approved sponsor ERCOT posted 2024-09-09 ercot.com

ReasonGeneral system and/or process improvement(s)

Created2024-10-03

Approved2025-05-15

Sections Affected

3.1.4.1.1

Summary

This Planning Guide Revision Request (PGRR) revises the Planning Guide to codify that a reliability margin will be utilized when limits associated with a stability constraint are modeled in the Regional Transmission Plan reliability and economic base cases.

Timeline

Sep 9 '24
ROSFiled by ERCOT
- 119PGRR-01 Stability Constraint Modeling Assumptions in the Regional Transmission Plan 090924 Sep 9 '24 · Revision Request
- 119PGRR-02 Impact Analysis 090924 Sep 9 '24 · Staff Report
Oct 3 '24
ROS ROS Meeting - Webex Only
ROSDeferred/Tabled Tabled Referred → PLWG
“to table PGRR119 and refer the issue to the Planning Working Group (PLWG)” — Passed

→ Language Consideration

Motion Carries 7.5–0 roll call
Oct 16 '24
PLWG PLWG Meeting
- 119PGRR-03 ROS Ballot 100324 Oct 8 '24 · Revision Request Ballot
- 119PGRR-04 ROS Report 100324 Oct 8 '24 · Committee Report
Nov 7 '24
Listed without action at 1 meeting
- ROS Meeting Nov 7 '24
Nov 12 '24
PLWG PLWG Meeting
- 119PGRR-05 OPUC Comments 110624 Nov 11 '24 · Revision Request Comments
Dec 5 '24
ROS ROS Meeting - Webex Only
- 119PGRR-06 Joint Commenters Comments 120224 Dec 2 '24 · Revision Request Comments
Dec 18 '24
Listed without action at 2 meetings (Dec 18 '24 – Jan 9 '25)
- PLWG Meeting - Webex Only Dec 18 '24
- ROS Meeting - Webex Only Jan 9 '25
Jan 29 '25
PLWG PLWG Meeting
- 119PGRR-07 Joint Commenters Comments 012225 Jan 23 '25 · Revision Request Comments
Feb 6 '25
ROS ROS Meeting - Webex Only
ROSRecommended for Approval Recommended for approval Amended by the Jan 22 '25 Joint Commenters comments
“to recommend approval of PGRR119 as amended by the 1/22/25 Joint Commenters comments.” — Passed

→ Impact Analysis Consideration

Motion Carries 7.5–0 roll call
Mar 6 '25
ROS ROS Meeting
ROSRecommended for Approval Recommended for approval Forwarded → TAC
“to endorse and forward to TAC the 2/6/25 ROS Report and 9/9/24 Impact Analysis for PGRR119” — Passed

→ Revision Request Consideration

Motion Carries 7.5–0 roll call
- 119PGRR-08 ROS Ballot 020625 Feb 11 '25 · Revision Request Ballot
- 119PGRR-09 ROS Report 020625 Feb 11 '25 · Committee Report
Mar 26 '25
TAC TAC Meeting
TACRecommended for Approval Recommended for approval
“to recommend approval of PGRR119 as recommended by ROS in the 3/6/25 ROS Report” — Passed

→ Revision Request Consideration

Motion Passes 29–0 roll call
- 119PGRR-10 ROS Ballot 030625 Mar 11 '25 · Revision Request Ballot
- 119PGRR-11 ROS Report 030625 Mar 11 '25 · Committee Report
Apr 7 '25
BOARD Board of Directors Meeting
- 119PGRR-12 TAC Ballot 032625 Mar 28 '25 · Revision Request Ballot
- 119PGRR-13 TAC Report 032625 Mar 28 '25 · Committee Report
Apr 8 '25
BOARDEmail Vote / Unlisted Meeting
BOARDRecommended for Approval Recommended for approval
“to recommend approval of PGRR119 as recommended by TAC in the 3/26/25 TAC Report” — Passed

→ Revision Request Consideration
- 119PGRR-14 Board Report 040825 Apr 8 '25 · Committee Report
May 15 '25
PUCT
PUCTApproved Approved
“to approve PGRR119 and accompanying ERCOT Market Impact Statement as presented in Project No. 54445, Review of Protocols Adopted by the Independent Organization” — Passed
—
Posted since the last meeting
- 119PGRR-15 PUCT Report 051525 May 20 '25 · Committee Report