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NPRR1044

Summary

Title Enhancement of SSR Mitigation Requirement
Next Group
Next Step
Status Approved on 02/09/2021
Effective Dates
03/01/2021

Action

Date Gov Body Action Taken Next Steps
02/09/2021 BOARD Approved
01/27/2021 TAC Recommended for Approval Revision Request Consideration
01/14/2021 PRS Recommended for Approval Revision Request Consideration
12/10/2020 PRS Recommended for Approval Impact Analysis Consideration
10/15/2020 PRS Deferred/Tabled Language Consideration

Voting Record

Date Gov Body Motion Result
02/09/2021 BOARD to approve NPRR1044 as recommended by TAC in the 1/27/21 TAC Report Passed
01/27/2021 TAC to recommend approval of NPRR1044 as recommended by PRS in the 1/14/21 PRS Report Passed
01/14/2021 PRS to endorse and forward to TAC the 12/10/20 PRS Report and the Impact Analysis for NPRR1044 Passed
12/10/2020 PRS to recommend approval of NPRR1044 as amended by the 11/23/20 ERCOT comments Passed
10/15/2020 PRS to table NPRR1044 and refer the issue to ROS Passed

Background

Status: Approved
Date Posted: Sep 1, 2020
Sponsor: ERCOT
Urgent: No
Sections: 3.22.1.2
Description: This Nodal Protocol Revision Request (NPRR) requires Generation Resources and Energy Storage Resources (ESRs) to develop and implement Subsynchronous Resonance (SSR) Mitigation plans to address SSR vulnerabilities in the event of six or fewer concurrent transmission outages, instead of the current threshold of four or fewer outages. Generation Resources and ESRs that satisfied Planning Guide Section 6.9, Addition of Proposed Generation to the Planning Models, before September 1, 2020 would be allowed to elect SSR monitoring to address SSR vulnerabilities in the event of five or six concurrent transmission outages.
Reason: Addresses current operational issues, Market efficiencies or enhancements

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