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ERCOT Five-Year Transmission Plan Update Meeting Insights and Next Steps

The ERCOT RPG Meeting discusses updates to the Five-Year Transmission Plan (5YTP) with an emphasis on reliability analyses from 2011 to 2015, and the introduction of economic analysis for potential projects. Key projects for reliability and reactive support will be posted, alongside updated case studies including security-constrained AC cases. Assumptions for economic evaluation are critical, notably the impact of recent generation retirements and updated gas price assumptions. The next steps involve finalizing previous analyses and beginning new studies for 2015.

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ERCOT Five-Year Transmission Plan Update Meeting Insights and Next Steps

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  1. ERCOT Five-Year Transmission Plan Update Jeff Billo RPG Meeting

  2. 2010 5YTP Reliability Analysis • 2015 Reliability Analysis • Updated set of reliability projects to be posted • Security constrained AC case to be posted • 2015_Reliability_8_<wz>_<wz>.raw • wz = weather zone • 2011 Reliability Analysis • Initial set of projects nearly • complete • 2012-4 Reliability Analysis • Project set to follow • Note: • Reliability analysis includes • reactive support projects RPG Meeting

  3. 2010 5YTP Economic Analysis • 2015 Economic Analysis • UPLAN start case (with congestion reports) to be posted • Comments being accepted for potential economic projects • Assumptions • Case contains all CREZ transmission facilities • Case contains all existing generation plus plants with SGIAs • Recent retirements/ mothballs removed from service • Greens Bayou 5 and SR Bertron 1 are in-service • New gas price assumptions posted • Fayetteville-Zenith 345 kV project not included at this time RPG Meeting

  4. 2010 5YTP Update • Next Steps • Finish 2011-2014 reliability analysis • Begin 2015 economic analysis • Build 2011-2014 economic analysis cases RPG Meeting

  5. Questions? March 12, 2010 RPG Meeting

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