Issues

NPRR598

Summary
Action
Voting Record
Background
Key Documents

Summary

Title	Clarify Inputs to PRC and ORDC
Next Group
Next Step
Status	Approved on 04/08/2014
Effective Dates	05/01/2014

Action

Date	Gov Body	Action Taken	Next Steps
04/08/2014	BOARD	Approved
02/27/2014	TAC	Recommended for Approval	ERCOT Board for consideration
02/13/2014	PRS	Recommended for Approval	TAC for consideration

Date

Gov Body

Action Taken

Next Steps

04/08/2014

BOARD

Approved

02/27/2014

TAC

Recommended for Approval

ERCOT Board for consideration

02/13/2014

PRS

Recommended for Approval

TAC for consideration

Voting Record

Date	Gov Body	Motion	Result
04/08/2014	BOARD	To approved NPRR598 as amended by the 3/28/14 TAC comments.	Passed
02/27/2014	TAC	To recommend approval of NPRR598 as recommended by PRS in the 2/13/14 PRS Report and as amended by the 2/25/14 ERCOT comments; to recommend approval of the "Methodology for Implementing Operating Reserve Demand Curve (ORDC) to Calculate Real-Time Reserve Price Adder" as amended by the 2/25/14 ERCOT comments - Attachment 1; and to add the methodology to the Other Binding Document List.	Passed
02/13/2014	PRS	To recommend approval of NPRR598 as submitted and to forward it and the Impact Analysis to TAC.	Passed

Date

Gov Body

Motion

Result

04/08/2014

BOARD

To approved NPRR598 as amended by the 3/28/14 TAC comments.

Passed

02/27/2014

TAC

To recommend approval of NPRR598 as recommended by PRS in the 2/13/14 PRS Report and as amended by the 2/25/14 ERCOT comments; to recommend approval of the "Methodology for Implementing Operating Reserve Demand Curve (ORDC) to Calculate Real-Time Reserve Price Adder" as amended by the 2/25/14 ERCOT comments - Attachment 1; and to add the methodology to the Other Binding Document List.

Passed

02/13/2014

PRS

To recommend approval of NPRR598 as submitted and to forward it and the Impact Analysis to TAC.

Passed

Background

Status:	Approved
Date Posted:	Feb 12, 2014
Sponsor:	ERCOT
Urgent:	Yes
Sections:	6.5.7.3, 6.5.7.5, 6.7.4
Description:	This Nodal Protocol Revision Request (NPRR) aligns the inputs to Physical Responsive Capability (PRC) and ORDC; stipulates the treatment of Off-Line capacity during scarcity conditions; and also proposes the following changes: · Removes STARTUP and SHUTDOWN status from PRC and ORDC calculations; · Sets Real-Time Off-Line available reserves used in the ORDC calculation to zero when SCED snapshot of the PRC becomes less than or equal to 2,300 MW which is the PRC MW at which Energy Emergency Alert (EEA) Level 1 is initiated; and · Changes the Load Resource Responsive Reserve (RRS) schedule used in ORDC to Max { min{Telemetered MW, RRS schedule, max[MPC - LPC - (Regulation responsibility + Non-Spin responsibility + Down Regulation responsibility), 0]}, 0}
Reason:	Market efficiencies or enhancements