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NPRR1057

Summary

Title Modification to Real-Time Hub Price Formulas for Fully De-Energized Hubs
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Next Step
Status Approved on 04/13/2021

Action

Date Gov Body Action Taken Next Steps
04/13/2021 BOARD Approved
03/24/2021 TAC Recommended for Approval Revision Request Consideration
02/11/2021 PRS Recommended for Approval Revision Request Consideration
01/14/2021 PRS Recommended for Approval Impact Analysis Consideration
12/10/2020 PRS Deferred/Tabled Language Consideration

Voting Record

Date Gov Body Motion Result
04/13/2021 BOARD to approve NPRR1057 as recommended by TAC in the 3/24/21 TAC Report, and the Revised Impact Analysis Passed
03/24/2021 TAC to recommend approval of NPRR1057 as recommended by PRS in the 2/11/21 PRS Report Passed
02/11/2021 PRS to endorse and forward to TAC the 1/14/21 PRS Report and Impact Analysis for NPRR1057 with a recommended priority of 2021 and rank of 3310 Passed
01/14/2021 PRS to recommend approval of NPRR1057 as amended by the 1/8/21 ERCOT comments Passed
12/10/2020 PRS to table NPRR1057 and refer the issue to WMS Passed

Background

Status: Approved
Date Posted: Nov 24, 2020
Sponsor: ERCOT
Urgent: No
Sections: 3.5.2.1, 3.5.2.2, 3.5.2.3, 3.5.2.4, 3.5.2.5, 3.5.2.6, 3.5.2.7, 6.6.1.5
Description: This Nodal Protocol Revision Request (NPRR) revises paragraph (2) of Section 6.6.1.5, Hub LMPs, to apply the Hub Locational Marginal Price (LMP) formulas to the Panhandle 345 kV Hub and the Lower Rio Grande Valley 138/345 kV Hub. In the case of the Lower Rio Grande Valley 138/345 kV Hub, this proposed change would only apply after implementation of NPRR941, Create a Lower Rio Grande Valley Hub. The proposed revisions also eliminate the portions of Hub Real-Time Settlement Point Prices (SPPs) formulas that are designed to address the condition of all Hub Buses within a Hub being de-energized. The SPP logic is redundant with what occurs in the calculation of LMPs and the formulas are unclear regarding how to manage the case in which all the Hub Buses are de-energized for only a portion of a 15-minute Settlement Interval.
Reason: Market efficiencies or enhancements

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