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PGRR109

Summary

Title Dynamic Model Review Process Improvement for Inverter-Based Resource (IBR) Modification
Next Group
Next Step
Status Approved on 04/11/2024

Action

Date Gov Body Action Taken Next Steps
04/11/2024 PUCT Approved
02/27/2024 BOARD Recommended for Approval Revision Request Consideration
01/24/2024 TAC Recommended for Approval Revision Request Consideration
01/08/2024 ROS Recommended for Approval Revision Request Consideration
12/07/2023 ROS Recommended for Approval Impact Analysis Consideration
08/03/2023 ROS Deferred/Tabled Language Consideration

Voting Record

Date Gov Body Motion Result
04/11/2024 PUCT to approve PGRR109 and accompanying ERCOT Market Impact Statement as presented in Project No. 54445, Review of Protocols Adopted by the Independent Organization Passed
02/27/2024 BOARD to recommend approval of PGRR109 as recommended by TAC in the 1/24/24 TAC Report Passed
01/24/2024 TAC to endorse and forward to TAC the 12/7/23 ROS Report and the 7/18/23 Impact Analysis for PGRR109 Passed
01/08/2024 ROS to endorse and forward to TAC the 12/7/23 ROS Report and the 7/18/23 Impact Analysis for PGRR109 Passed
12/07/2023 ROS to recommend approval of PGRR109 as amended by the 11/17/23 ERCOT comments Passed
08/03/2023 ROS to table PGRR109 and refer the issue to the Inverter-Based Working Group (IBRWG) and Planning Working Group (PLWG) Passed

Background

Status: Approved
Date Posted: Jul 18, 2023
Sponsor: ERCOT
Urgent: No
Sections: 5.2.1, 5.5, and 6.2
Description: This Planning Guide Revision Request (PGRR) introduces a new requirement for Interconnecting Entities (IEs) associated with Inverter-Based Resources (IBRs) to undergo a dynamic model review process prior to Resource Commissioning Date. Additionally, this PGRR mandates that Resource Entities owning or controlling operational IBRs must undergo a review process before implementing any changes to settings or equipment (e.g., protection and control settings) that could impact electrical performance and necessitate dynamic model updates. As part of the review process, ERCOT shall review the model quality tests submitted by an IE or Resource Entity. In the case of operational IBRs, the review process may require the interconnecting Transmission Service Provider (TSP) conducting a limited dynamic stability study to compare and evaluate the electrical performance before and after the proposed modifications.
Reason: Strategic Plan Objective 1

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