Highlights From ERCOT 2012 Summer Review

by · September 27, 2012

  • As expected, weather was hotter than normal (15 year average), but not as extreme as summer 2011
  • The peak demand of  66,626 MW was set June 26, unusually early in the summer, 1,753 MW less than the August 2011 peak of 68,379 MW
  • The summer 2012 SARA forecasted a peak of 67,492 MW
  • No significant challenges serving load
    • Generation forced outages were lower than last year possibly due to temperatures and load not sustained at extreme levels
    • ERCOT region experienced more rain during the summer of 2012, so drought was not a broad concern
    • One watch for Physical Responsive Reserve below 2500 MW due to the tripping of two large generating units on July 30
    • No Energy Emergency Alert events
  • Four Transmission Watches issued for areas of South and West Texas due to high loads and some transmission outages
    • Load growth in West Texas due to gas and oil development led to more transmission congestion in the area
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Filed Under: Deregulation, Texas

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