PGRR #121 · Revision Request
PGRR121 Related to NOGRR272, Advanced Grid Support Requirements for Inverter-Based ESRs
ReasonStrategic Plan Objective 1
Created2024-12-05
Approved2025-11-06
Sections Affected
6.2
Summary
This Planning Guide Revision Request (PGRR) establishes model quality test and unit model validation requirements for inverter-based Energy Storage Resources (ESRs) with a Standard Generation Interconnection Agreement (SGIA) executed on or after April 1, 2026.
Action Log 6 milestones
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Dec 5
ROSDeferred/Tabled→ Language Consideration
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Jul 10
ROSDeferred/Tabled→ Language Consideration
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Aug 7
ROSRecommended for Approval→ Revision Request Consideration
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Aug 27
TACRecommended for Approval→ Revision Request Consideration
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Sep 22
BOARDRecommended for Approval→ Revision Request Consideration
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Nov 6
PUCTApproved
Amendments
| Date | Body | Motion | Result |
|---|---|---|---|
| Aug 7 '25 | ROS | to recommend approval of PGRR121 as amended by the 6/4/25 ERCOT comments | Passed |
| Aug 27 '25 | TAC | to recommend approval of PGRR121 as recommended by ROS in the 8/7/25 ROS Report as amended by the 8/22/25 ERCOT comments; and the 10/31/24 Impact Analysis | Passed |
Ballots
| Date | Body | Result | Yes | No | Abstain | |
|---|---|---|---|---|---|---|
| Aug 27 '25 | TAC | Motion Passes | 27 | 0 | 3 | xls |
| Aug 7 '25 | ROS | Motion Carries | 6.5 | 1 | 4 | xls |
| Jul 10 '25 | ROS | Motion Carries | 7.5 | 0 | 0 | xls |
| Dec 5 '24 | ROS | Motion Carries | 7.5 | 0 | 0 | xls |
Documents 15
| Name | Type | Posted | Classification |
|---|---|---|---|
| 121PGRR-01 Related to NOGRR272, Advanced Grid Support Requirements for Inverter-Based ESRs 103124 | docx | Oct 31 '24 | Revision Request |
| 121PGRR-02 Impact Analysis 103124 | docx | Oct 31 '24 | Staff Report |
| 121PGRR-03 ROS Ballot 120524 | xls | Dec 9 '24 | Revision Request Ballot |
| 121PGRR-04 ROS Report 120524 | docx | Dec 9 '24 | Committee Report |
| 121PGRR-05 ERCOT Comments 060425 | docx | Jun 4 '25 | Revision Request Comments |
| 121PGRR-06 ROS Ballot 071025 | xls | Jul 15 '25 | Revision Request Ballot |
| 121PGRR-07 ROS Report 071025 | docx | Jul 15 '25 | Committee Report |
| 121PGRR-08 ROS Ballot 080725 | xls | Aug 12 '25 | Revision Request Ballot |
| 121PGRR-09 ROS Report 080725 | docx | Aug 12 '25 | Committee Report |
| 121PGRR-10 ERCOT Comments 082225 | docx | Aug 22 '25 | Revision Request Comments |
| 121PGRR-11 Tesla Comments 082225 | docx | Aug 22 '25 | Revision Request Comments |
| 121PGRR-12 TAC Ballot 082725 | xls | Sep 2 '25 | Revision Request Ballot |
| 121PGRR-13 TAC Report 082725 | docx | Sep 2 '25 | Committee Report |
| 121PGRR-14 Board Report 092225 | docx | Sep 24 '25 | Committee Report |
| 121PGRR-15 PUCT Report 110625 | docx | Nov 10 '25 | Committee Report |
Meetings That Took It Up 17
| Date | Meeting | Committee | Status |
|---|---|---|---|
| Sep 22 '25 | Board of Directors Meeting | BOARD | Concluded |
| Aug 27 '25 | TAC Meeting | TAC | Concluded |
| Aug 7 '25 | ROS Meeting | ROS | Concluded |
| Jul 10 '25 | ROS Meeting - Webex Only | ROS | Concluded |
| Jun 5 '25 | ROS Meeting - Webex Only | ROS | Concluded |
| May 1 '25 | ROS Meeting | ROS | Concluded |
| Apr 3 '25 | ROS Meeting - Webex Only | ROS | Concluded |
| Mar 6 '25 | ROS Meeting | ROS | Concluded |
| Feb 21 '25 | IBRWG Meeting - Webex Only | IBRWG | Concluded |
| Feb 13 '25 | DWG Meeting - Webex Only | DWG | Concluded |
| Feb 6 '25 | ROS Meeting - Webex Only | ROS | Concluded |
| Jan 17 '25 | IBRWG Meeting - Webex Only | IBRWG | Concluded |
| Jan 9 '25 | ROS Meeting - Webex Only | ROS | Concluded |
| Dec 13 '24 | IBRWG Meeting - Webex Only | IBRWG | Concluded |
| Dec 11 '24 | DWG Meeting - Webex Only | DWG | Concluded |
| Dec 5 '24 | ROS Meeting - Webex Only | ROS | Concluded |
| Nov 15 '24 | IBRWG Meeting - Webex Only | IBRWG | Concluded |