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Overview Eldorado-Ivanpah Transmission Project (EITP)

Overview Eldorado-Ivanpah Transmission Project (EITP). Amos Ang 5/27/2010. Existing System Arrangement . To McCullough. Eldorado. To Mead. To Merchant. Interstate 15. To Moenkopi. To Mohave. Mountain Pass. To Baker/Dunn Siding/ Cool Water 115 kV. To Lugo. Pisgah No.1/Cima.

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Overview Eldorado-Ivanpah Transmission Project (EITP)

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  1. OverviewEldorado-Ivanpah Transmission Project (EITP) Amos Ang 5/27/2010

  2. Existing System Arrangement ToMcCullough Eldorado ToMead ToMerchant Interstate 15 ToMoenkopi ToMohave Mountain Pass To Baker/Dunn Siding/ Cool Water 115 kV To Lugo Pisgah No.1/Cima Pisgah No.2

  3. Project Background • SCE is proposing to construct The Eldorado-Ivanpah Transmission Project to access new solar generation near the southern California-Nevada border. • The Eldorado-Ivanpah Transmission Project will consist of replacing existing 115 kV line with a new double-circuit 220 kV transmission line, construction of a new 220/115 kV Substation, installation of telecom, and Light & Power to new Substation. • SCE filed an application in May 2009 with the California Public Utilities Commission (CPUC) for a Certificate of Public Convenience and Necessity (CPCN) for the Eldorado-Ivanpah Transmission Project.

  4. Project Description Substations • Construction of a new 220/115 kV substation (Ivanpah) approximately 7 miles west of the California/Nevada border in the Ivanpah Dry Lake area. • Ivanpah Substation will serve as a collector hub for the solar generation projects. • Designed to allow up to four 220/115 kV transformers (A-banks) • Initially two 220/115 kV transformers with an SPS • Eldorado Substation • Expand existing switchrack and install two new 220 kV positions at Eldorado Substation to support connection of new transmission lines • Remove existing 220/115 kV transformer bank at end of North 220 kV bus

  5. Project DescriptionTransmission • Removal of approximately 35 miles of the Eldorado leg of the existing Eldorado-Baker-Cool Water-Dunn Siding-Mountain Pass 115 kV line. • Construction of approximately 35 miles of a new double-circuit 230 kV transmission line with bundled 1590 ACSR conductor. • Initially only one side of the double-circuit would be strung to support the first set of generation interconnections request • The new double circuit 220 kV line would be constructed in mostly existing right-of-way. Additional easements may be required due to narrow width of the existing right-of-way along portions of the route and for some line crossings • Re-route remaining portion of Eldorado leg of Cool Water-Baker-Dunn Siding-Mountain Pass 115 kV line into new Ivanpah Substation. • New Baker-Cool Water-Dunn Siding-Mountain Pass-Ivanpah 115kV line

  6. ToMcCullough Eldorado ToMead ToMerchant Interstate 15 ToMoenkopi ToMohave Ivanpah Mountain Pass To Baker/Dunn Siding/ Cool Water 115 kV To Lugo Pisgah No.1/ Cima Pisgah No.2 Proposed System Arrangement

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