ComplianceCompliance UpdateUpdate

ROSROSFeb. 10, 2005Feb. 10, 2005

Mark R. Henry, ERCOT ComplianceMark R. Henry, ERCOT Compliance

Topics to CoverTopics to Cover

NERC Blackout RecommendationsNERC Blackout Recommendations

August 18August 18thth DCS Event update DCS Event update

August 18August 18thth DCS event DCS event

ERCOT Operations addressing ERCOT Operations addressing procedures and drafting a PRRprocedures and drafting a PRR

13 QSE’s have been asked for further 13 QSE’s have been asked for further information to confirm or undertake information to confirm or undertake additional actions based on earlier additional actions based on earlier responses responses

NERC has indicated that ERCOT will NERC has indicated that ERCOT will not be given an exemption from the not be given an exemption from the DCS violation, but no additional RRS DCS violation, but no additional RRS must be purchased. Needs final must be purchased. Needs final confirmation confirmation

NERC Recommendation 8b - UVLSNERC Recommendation 8b - UVLS

ERCOT provided locations that benefit from ERCOT provided locations that benefit from UVLS UVLS

SPWG is/will develop relay information and SPWG is/will develop relay information and requirements (OGRR’s) requirements (OGRR’s)

CRITICAL PATH: Individual detailed study CRITICAL PATH: Individual detailed study by TDSP’s is needed to: by TDSP’s is needed to: Confirm the benefitConfirm the benefit Prioritize the effortsPrioritize the efforts Detail the locations and equipment settings Detail the locations and equipment settings

Implemention plans and installation dates Implemention plans and installation dates follow further TDSP studyfollow further TDSP study

NERC Recommendation 12a – Time NERC Recommendation 12a – Time Synchronization of Disturbance MonitorsSynchronization of Disturbance Monitors

SPWG issued requirement (draft SPWG issued requirement (draft OGRR) for time synchronization via OGRR) for time synchronization via GPS-based signals GPS-based signals

Most TDSP’s are not affected, time Most TDSP’s are not affected, time synchronization already in placesynchronization already in place

4 companies will need to undertake 4 companies will need to undertake efforts to add equipment. SPWG efforts to add equipment. SPWG members believed most installation members believed most installation can be complete by EOY 2006can be complete by EOY 2006

NERC Recommendation 12b – NERC Recommendation 12b – Dynamic Disturbance MonitorsDynamic Disturbance Monitors

This equipment is meant to monitor This equipment is meant to monitor for transient stability concerns. for transient stability concerns. Region has no installations today. Region has no installations today.

DWG issued plan to conduct annual DWG issued plan to conduct annual review (reported to ROS in review (reported to ROS in September 2004)September 2004) First DWG review will occur this monthFirst DWG review will occur this month Annual review will be incorporated into Annual review will be incorporated into

DWG procedures later in 2005DWG procedures later in 2005 DWG identified certain technical DWG identified certain technical

specifications for monitoring (also specifications for monitoring (also reported to ROS in Sept 2004). reported to ROS in Sept 2004).

NERC Recommendation 14 – NERC Recommendation 14 – Model ValidationModel Validation

SSWG commented on model validation SSWG commented on model validation efforts related to load flow/steady state efforts related to load flow/steady state conditions. conditions.

DWG plans annual event simulationDWG plans annual event simulation First event simulation in 2005First event simulation in 2005 Add simulation to annual DWG procedures in Add simulation to annual DWG procedures in

20052005 Further work on models identifiedFurther work on models identified

Wind model work in 2005Wind model work in 2005 Load model work in 2007Load model work in 2007 Combined cycle gen models – deleted from Combined cycle gen models – deleted from

ERCOT budgetERCOT budget Governor and AVR testing to support model Governor and AVR testing to support model

validation needs – 2006 target validation needs – 2006 target