Issues

NPRR081

Summary
Action
Voting Record
Background
Key Documents

Summary

Title	Automatic Voltage Regulator (AVR) Status
Next Group
Next Step
Status	Approved on 03/18/2008
Effective Dates	12/01/2010 or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (04/01/08 Nodal Protocols Library)

Action

Date	Gov Body	Action Taken	Next steps
03/18/2008	BOARD	Approved
03/06/2008	TAC	Recommended for Approval	ERCOT Board consideration of NPRR081
02/14/2008	ROS		TAC consideration of NPRR081
11/29/2007	TAC	Referred
11/15/2007	PRS	Recommended for Approval
09/20/2007	PRS	Recommended for Approval	PRS review of the Recommendation Report and Impact Analysis

Date

Gov Body

Action Taken

Next steps

03/18/2008

BOARD

Approved

03/06/2008

TAC

Recommended for Approval

ERCOT Board consideration of NPRR081

02/14/2008

ROS

TAC consideration of NPRR081

11/29/2007

TAC

Referred

11/15/2007

PRS

Recommended for Approval

09/20/2007

PRS

Recommended for Approval

PRS review of the Recommendation Report and Impact Analysis

Voting Record

Date	Gov Body	Motion	Result
03/18/2008	BOARD	Approve as recommended by TAC.	Passed
03/06/2008	TAC	To recommend approval as revised by ROS comments.	Passed
02/14/2008	ROS	To submit comments recommending revised language.	Passed
11/29/2007	TAC	To refer NPRR081 to ROS pending deliverables from the Power System Stabilizer (PSS) Task Force.	Passed
11/15/2007	PRS	To forward the Recommendation Report and IA to TAC.	Passed
09/20/2007	PRS	To recommend approval of NPRR081 as revised by TPTF and PRS.	Passed

Date

Gov Body

Motion

Result

03/18/2008

BOARD

Approve as recommended by TAC.

Passed

03/06/2008

TAC

To recommend approval as revised by ROS comments.

Passed

02/14/2008

ROS

To submit comments recommending revised language.

Passed

11/29/2007

TAC

To refer NPRR081 to ROS pending deliverables from the Power System Stabilizer (PSS) Task Force.

Passed

11/15/2007

PRS

To forward the Recommendation Report and IA to TAC.

Passed

09/20/2007

PRS

To recommend approval of NPRR081 as revised by TPTF and PRS.

Passed

Background

Status:	Approved
Date Posted:	Aug 31, 2007
Sponsor:	ERCOT Staff
Urgent:	No
Sections:	3.15.3, QSE Responsibilities Related to Voltage Support
Description:	This NPRR adds a requirement for telemetry of Generation Resource AVR status to comply with North American Electric Reliability Corporation (NERC) Reliability Standards.
Reason:	NERC Reliability Standard VAR-001-1, Requirements R4, R6 and R6.1 require the Transmission Operator to know the status of all transmission Reactive Power resources, including the status of AVRs on generators. In addition, NERC Reliability Standard VAR-002-1, to become effective 8/2/07, requires the Generator Operator to "…operate each generator connected to the interconnected transmission system in the automatic voltage control mode (automatic voltage regulator in service and controlling voltage)…" The requirement does not state that telemetry must be installed in order to be in compliance with this standard. However, installing telemetry which can be archived for historical and auditing purposes, provides a better tracking means than using ERCOT and participant logs. During the PRS discussion of PRR732, Automatic Voltage Regulator (AVR) Status -- Compliance with NERC Reliability Standards PRS agreed that telemetry would facilitate compliance with NERC requirements and will eliminate any question whether ERCOT has captured all data required by NERC. Market Participants and ERCOT agreed that Market Participants should be given sufficient time to install the telemetry technology and such a transition period will extend to the start of the Texas Nodal Market. Therefore, this issue should be addressed in the Nodal Protocols. This NPRR addresses this issue. Facilitates compliance to NERC Reliability Standards