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NPRR1052

Summary

Title Load Zone Pricing for Settlement Only Storage Prior to NPRR995 Implementation
Next Group
Next Step
Status Approved on 02/09/2021
Effective Dates
02/11/2022

Action

Date Gov Body Action Taken Next steps
02/09/2021 BOARD Approved
01/27/2021 TAC Recommended for Approval Board for consideration
12/10/2020 PRS Recommended for Approval TAC for consideration
11/11/2020 PRS Recommended for Approval PRS for Impact Analysis consideration

Voting Record

Date Gov Body Motion Result
02/09/2021 BOARD To approve NPRR1052 as recommended by TAC in the 1/27/21 TAC Report Passed
01/27/2021 TAC To recommend approval of NPRR1052 as recommended by PRS in the 12/10/20 PRS Report Passed
12/10/2020 PRS To endorse and forward to TAC the 11/11/20 PRS Report and Impact Analysis for NPRR1052 Passed
11/11/2020 PRS To recommend approval of NPRR1052 as submitted Passed

Background

Status: Approved
Date Posted: Oct 27, 2020
Sponsor: ERCOT
Urgent: No
Sections: 6.6.3.2, 6.6.3.9, 9.19.1, and 16.5
Description: This NPRR establishes the following Settlement and metering provisions for Energy Storage Systems (ESSs) that are registered as Settlement Only Generators (SOGs) pending the approval and implementation of NPRR995, RTF-6 Create Definition and Terms for Settlement Only Energy Storage: (1) For any site with one or more ESS SOGs where the ESSs’ rated capacity constitutes more than 50% of the site’s overall nameplate capacity, energy injections and withdrawals will be settled at the Load Zone price; and (2) For any site with one or more ESS SOGs where the ESSs’ rated capacity constitutes 50% or less of the site’s overall nameplate capacity, energy injections will be settled at the applicable nodal price and withdrawals will be settled at the Load Zone price. This is the only scenario in which zonal/nodal arbitrage is possible. ERCOT expects that such configurations will be minimal, and emphasizes that this arbitrage possibility will expire upon implementation of NPRR995.
Reason: Market efficiencies or enhancements

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