September 17, 2010

RPG Meeting

ERCOT Five-Year Transmission Plan Update

Jeff Billo

September 17, 2010 2 RPG Meeting

2010 5YTP Reliability Analysis

• 2011-2015 Reliability Analysis• Updated set of reliability projects with required in-service dates posted• Generation outage scenarios not completed for 2011-2014

September 17, 2010 3 RPG Meeting

2010 5YTP Economic Analysis

• 2015 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 and 2 removed

• Gas price assumptions posted• Fayetteville-Zenith 345 kV project added as “first” economic project

• 2015 Economic Analysis• Initial set of economic projects posted

• 2011-2014 Economic Analysis• Initial analysis has just begun

September 17, 2010 4 RPG Meeting

Economic Analysis Update

• Early plan included projects that changed the injection of west Texas plants from load serving system to CREZ facilities• Trent/ South Trent power injecting into Sweetwater East instead of

Eskota• McAdoo power injecting into Cottonwood instead of Spur

• These projects have been removed from the 2010 5YTP• Pending results of ABB CREZ Reactive Study• Pending NPRR 264• Other policy issues may need to be addressed• May be added in future plans once the above issues get resolved

September 17, 2010 5 RPG Meeting

2010 5YTP Update

• Next Steps– Finish 2011-2014 reliability analysis (generator outage analysis)– Finish 2011-2015 economic analysis– CREZ-level generation analysis– Write draft report

September 17, 2010 6 RPG Meeting March 12, 2010

Questions?