SunZia Southwest Transmission Project

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SunZia Southwest Transmission Project
Arizona Corporation Commission Biennial
Transmission Assessment Workshop
Phoenix, AZ
May 22 23, 2008
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Energy Corridor
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Project Study Area
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Project Benefits

• Provides delivery of renewable resources (solar,
  wind, and geothermal) to markets
• Increases reliability of the existing New Mexico
  and Arizona EHV transmission systems
• Promotes interconnections of existing and planned
  transmission facilities in New Mexico and Arizona
• Increases the transmission system transfer
  capability across the Western Interconnect

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WECC Regional Planning Process

• Regular project updates issued to SWAT and its
  subcommittees
• Initiated Regional Project Planning (December 15,
  2006)
• Initiated Open Season (December 15, 2006)
• Attracted thirty interested parties
• Initial Meeting held (February 16, 2007)
• Draft Regional Planning Project Report issued
  (March 16, 2007)
• Final RPPR issued to WECC (May 17, 2007)
• WECC issued acceptance of RPPR (July 12, 2007)

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WECC Project Rating Process

• Entered Phase 1 Project Rating Process July 2007
• Technical Work Group formed August 2007
• Draft Study Plan developed September 2007
• Technical Work Group meetings Sept and Oct 2007
• Suspended Technical Work Group November 2007
  meetings to fully take into account Development
  Partner interests (pending execution of MOA)
• Re-initiate TWG and Update Study Plan June 2008
• Comprehensive Progress Report and potential
  rating expected to be submitted to WECC by
  October 2008
• Begin Phase 2 Rating Process January 2009

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Schedule

• Project Phases and Target Completion Dates
• Phase 0 Project Feasibility and Execute MOA
• Completed April 2008
• Phase 1 Project Development/Permitting
• Initiate Q2 2008
• Complete Q4 2011
• Phase 2 Design and Construction
• Initiate Q3 2009
• Complete Q4 2013
• Phase 3 Operation
• Late 2013

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Websites

• For more information on the SunZia Southwest
  Transmission Project
• www.sunzia.net
• www.southwesternpower.com

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