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NERC Event Analysis Overview. ERCOT ROS Meeting Austin, Texas May 15, 2006. Administration. Standards. Reliability Readiness. Training, Education & Operator Certification. Members’ Forums. Legal & Regulatory. Finance & Accounting. Compliance & Organization Certification.
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NERC Event Analysis Overview ERCOT ROS Meeting Austin, Texas May 15, 2006
Administration Standards Reliability Readiness Training, Education & Operator Certification Members’ Forums Legal & Regulatory Finance & Accounting Compliance & Organization Certification Reliability Assessment & Performance Analysis Situation Awareness & Infrastructure Security Information Technology Human Resources Future Adequacy Benchmarking Event Analysis President & CEO Committees Program GroupsSubject Matter Expert Groups
Overall Scope of RAPA Programs • Reliability Assessment – Looking Ahead • Independently assess and report on reliability and adequacy of the bulk power system • Events Analysis and Information Exchange – Looking Back for Lessons Learned • Analyze off-normal events and disseminate “lessons learned” to improve reliability performance • Benchmarking – How are we doing? • Develop reliability performance metrics, trends, and benchmarks – requires system measurements
Program Scope • Investigate large-scale outages, disturbances, and near misses • Determine root causes and lessons learned • Identify and monitor performance to detect emerging trends and signs of decline in reliability performance • Communicate results, trends, recommendations, and initiatives to industry
Events Under Investigation NERC “Action List” • Los Angeles – Sept. 12, 2005 • Blackout • Denver – February 18, 2006 • Rolling Blackouts • NYPA / Ontario – March 29, 2006 • Significant Generation Trip • ERCOT – April 17, 2006 • Rolling Blackouts
Los Angeles – Sept. 12, 2005 • Design Alert – Generation Design • Undersized exciter power supply cables on Haynes Unit 10 – resulted in tripping of ~ 500 MW of generation • Turnkey project • Similar problems on sister units installed by same A&E firm • Review design (as built) of generators to ensure they can reach rated reactive power output
Potential Studies for “Actions List” • Short-term demand forecasting • Contributory to 3 disturbances in 12 months • Generation forced outages • Weather-related • Protection / control system coordination