Issues

NOGRR029

Title	Synchronization of OGRR224, Special Protection System (SPS) Operations Under No Contingency
Next Group
Next Step
Status	Approved on 01/06/2010
Effective Dates	12/01/2010 or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (02/01/10 Nodal Operating Guide Library)

Date	Gov Body	Action Taken	Next steps
01/06/2010	TAC	Approved
12/10/2009	ROS	Recommended for Approval	TAC Consideration
10/21/2009	OWG	Recommended for Approval	OWG consider the Recommendation Report and Impact Analysis

Date

Gov Body

Action Taken

Next steps

01/06/2010

TAC

Approved

12/10/2009

ROS

Recommended for Approval

TAC Consideration

10/21/2009

OWG

Recommended for Approval

OWG consider the Recommendation Report and Impact Analysis

Date	Gov Body	Motion	Result
01/06/2010	TAC	To approve NOGRR029 as recommended by ROS in the 12/10/10 ROS Recommendation Report.	Passed
12/10/2009	ROS	To recommend approval of NOGRR029 as recommended by OWG in the 11/17/09 OWG Recommendation Report	Passed
10/21/2009	OWG	Consensus to recommend approval of NOGRR029 as submitted.	Passed

Date

Gov Body

Motion

Result

01/06/2010

To approve NOGRR029 as recommended by ROS in the 12/10/10 ROS Recommendation Report.

Passed

12/10/2009

To recommend approval of NOGRR029 as recommended by OWG in the 11/17/09 OWG Recommendation Report

Passed

10/21/2009

Consensus to recommend approval of NOGRR029 as submitted.

Passed

Status:	Approved
Date Posted:	Sep 2, 2009
Sponsor:	John Dumas
Urgent:	No
Sections:	6.2.1, Introduction 6.2.2 Design and Operating Requirements for ERCOT System Facilities
Description:	This Nodal Operating Guide Revision Request (NOGRR) adds addtional monitoring and control requirements for Special Protection Systems (SPSs) that involve generation reduction to synchronize the Nodal Operating Guides with OGRR224.
Reason:	ERCOT observed several SPS operations in 2008 that occurred under normal loading without any system disturbances. This NOGRR presented herein places an obligation on Resource owners who have an SPS to monitor fthe flows monitored by the SPS in the base case and reduce output as needed before the arming point of the SPS is reached.