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Overview of NERC Event Analysis: ERCOT Reliability and Performance Insights

This overview discusses the North American Electric Reliability Corporation (NERC) event analysis, focusing on the ERCOT region's reliability assessment and performance evaluation. The meeting held in Austin, Texas on May 15, 2006, covers essential standards for reliability readiness, operator certification, and highlights from various events, including significant blackouts and disturbances. It emphasizes the importance of lessons learned, performance benchmarking, and proactive measures to enhance the reliability of the bulk power system, encompassing findings and recommendations for the future.

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Overview of NERC Event Analysis: ERCOT Reliability and Performance Insights

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Presentation Transcript

  1. NERC Event Analysis Overview ERCOT ROS Meeting Austin, Texas May 15, 2006

  2. 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

  3. 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

  4. 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

  5. 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

  6. 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

  7. Sample Alert

  8. 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

  9. Questions

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