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NPRR1145

Summary

Title Use of State Estimator-Calculated ERCOT-Wide TLFs in Lieu of Seasonal Base Case ERCOT-Wide TLFs for Settlement
Next Group
Next Step
Status Approved on 05/11/2023

Action

Date Gov Body Action Taken Next Steps
05/11/2023 PUCT Approved
04/18/2023 BOARD Recommended for Approval Revision Request Consideration
03/21/2023 TAC Recommended for Approval Revision Request Consideration
03/08/2023 PRS Recommended for Approval Revision Request Consideration
02/09/2023 PRS Recommended for Approval Impact Analysis Consideration
08/11/2022 PRS Deferred/Tabled Language Consideration

Voting Record

Date Gov Body Motion Result
05/11/2023 PUCT to approve NPRR1145 and accompanying ERCOT Market Impact Statement as presented in Project No. 54445, Review of Rules Adopted by the Independent Organization Passed
04/18/2023 BOARD to recommend approval of NPRR1145 as recommended by TAC in the 3/21/23 TAC Report Passed
03/21/2023 TAC to recommend approval of NPRR1145 as recommended by PRS in the 3/8/23 PRS Report as revised by TAC Passed
03/08/2023 PRS to endorse and forward to TAC the 2/9/23 PRS Report and 7/27/22 Impact Analysis for NPRR1145 with a recommended priority of 2024 and rank of 4010 Passed
02/09/2023 PRS to recommend approval of NPRR1145 as amended by the 8/10/22 ERCOT comments Passed
08/11/2022 PRS to table NPRR1145 and refer the issue to WMS Passed

Background

Status: Approved
Date Posted: Jul 27, 2022
Sponsor: ERCOT
Urgent: No
Sections: 2.1, 13.1.1, 13.1.2, 13.2.2, 13.2.3, 13.2.4, 13.2.5, 13.2.5 (new), 13.4, 13.4.1
Description: This Nodal Protocol Revision Request (NPRR) changes the 15-minute level ERCOT-wide Transmission Loss Factors (TLFs) that are used in the Settlement process from seasonal base case TLFs to State Estimator-calculated TLFs in Energy Management System (EMS). It also clarifies the use of Non-Opt-In Entity (NOIE) deemed actual TLFs to remove behind-the-meter Transmission Losses.
Reason: Market efficiencies or enhancements

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