Title Related to SCR819, Improving IRR Control to Manage GTC Stability Limits
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Next Step
Status Approved on 03/31/2022


Date Gov Body Action Taken Next steps
03/31/2022 PUCT Approved
03/07/2022 BOARD Recommended for Approval PUCT for consideration
01/31/2022 TAC Recommended for Approval Revision Request Consideration
01/13/2022 PRS Recommended for Approval Revision Request Consideration
12/14/2021 PRS Deferred/Tabled Language Consideration

Voting Record

Date Gov Body Motion Result
03/31/2022 PUCT To approve NPRR1111 and accompanying ERCOT Market Impact Statement as presented in Project No. 52934, Review of Rules Adopted by the Independent Organization Passed
03/07/2022 BOARD To recommend approval of NPRR1111 as recommended by TAC in the 1/31/22 TAC Report Passed
01/31/2022 TAC to recommend approval of NPRR1111 as recommended by PRS in the 1/13/22 PRS Report Passed
01/13/2022 PRS to recommend approval of NPRR1111 as submitted and to forward to TAC NPRR1111 and the Impact Analysis Passed
12/14/2021 PRS To grant NPRR1111 Urgent status, and to table NPRR1111 and refer the issue to ROS and WMS Passed


Status: Approved
Date Posted: Dec 13, 2021
Sponsor: ERCOT
Urgent: Yes
Sections: 3.3.8,,,,,,
Description: This Nodal Protocol Revision Request (NPRR) expands the use of the Security-Constrained Economic Dispatch (SCED) Base Point Below High Dispatch Limit (“SBBH”) flag to signify that ERCOT has instructed an Intermittent Renewable Resource (IRR) or Direct Current (DC)-Coupled Resources not to exceed its Base Point. These changes improve the control of IRRs in order to more efficiently manage Generic Transmission Constraint (GTC) stability limits. Additionally, the Base Point Deviation Charge threshold for IRRs is adjusted to encourage better SCED Base Point control.
Reason: Addresses current operational issues

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