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OBDRR021

Summary

Title Correction to Calculation in Procedure for Calculating Responsive Reserve (RRS) Limits for Individual Resources
Next Group
Next Step
Status Approved on 07/29/2020
Effective Dates
08/01/2020

Action

Date Gov Body Action Taken Next steps
07/29/2020 TAC Approved
06/24/2020 TAC Recommended for Approval Impact Analysis Consideration

Voting Record

Date Gov Body Motion Result
07/29/2020 TAC to approve the 6/24/20 TAC Report and the Impact Analysis for OBDRR021 Passed
06/24/2020 TAC to recommend approval of OBDRR021 as revised by TAC Passed

Background

Status: Approved
Date Posted: May 6, 2020
Sponsor: NRG
Urgent: No
Sections: Procedure for Calculating Responsive Reserve (RRS) Limits for Individual Resources
Description: This Other Binding Document Revision Request (OBDRR) aligns the language in the Procedure for Calculating Responsive Reserve (RRS) Limits for Individual Resources with the Protocols following Phase 1 implementation of Nodal Protocol Revision Request (NPRR) 863, Creation of ERCOT Contingency Reserve Service and Revisions to Responsive Reserve, and corrects inadvertent errors in the formulae for calculating droop performance to determine Responsive Reserve (RRS) limits. The Performance, Disturbance, Compliance Working Group (PDCWG) reviewed these updates at their April 15, 2020 WebEx-only meeting. Listed below is a summary of the modifications that are being proposed by this OBDRR: a) Recognize that any Generation Resource capable of operating in synchronous condenser fast-response mode can provide RRS; b) Clarify RRS limits applicable to Resources providing RRS as Fast Frequency Response (FFR); and c) Correct inadvertent errors in the formulae for calculating droop performance to determine RRS limits.
Reason: Addresses current operational issues

Key Documents

021OBDRR-01 Correction to Calculation Procedure for Calculating Responsive Reserve (RRS) Limits for Individual Resources 050620
May 6, 2020 - docx - 63.3 KB
021OBDRR-02 ROS Comments 060820
Jun 8, 2020 - doc - 39.5 KB
021OBDRR-03 TAC Ballot 062420
Jun 29, 2020 - xls - 101 KB
021OBDRR-04 TAC Report 062420
Jun 29, 2020 - docx - 64.3 KB
021OBDRR-05 Impact Analysis 071420
Jul 14, 2020 - docx - 29.2 KB
021OBDRR-05 TAC Ballot 072920
Aug 3, 2020 - xls - 101 KB
021OBDRR-06 TAC Report 072920
Aug 3, 2020 - docx - 64.7 KB