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| Transmission OASIS Functions OATT Revisions Interconnection General requirements (pdf 584 kb) Process Interconnection projects Contacts Infrastructure projects | San Luis Rio Colorado Project |
Western issues Record of DecisionAfter reviewing impacts for each of the alternatives for the San Luis Rio Colorado Project, Western identified a combination of the Route Alternative and the 230-kV Alternative as the Agency Preferred Alternative. With this approach, the proposed project would use the route from the Route Alternative described in the Environmental Impact Statement and be constructed to 230-kV standards. Western's decision is to allow North Branch Resources, LLC and Generadora del Desierto, S.A. de C. V., the applicants, to interconnect with its transmission system at Gila Substation and to construct the Agency Preferred Alternative upon completion of Western's Large Generator Interconnection Procedures process. About the San Luis Rio Colorado Project
Generadora del Desierto S.A. de C.V. is building a new 550-Megawatt nominal (605-MW peaking) natural gas-fired, combined cycle power generating facility located approximately three miles east of San Luis Rio Colorado, Sonora, Mexico, and about one mile south of the international border. The applicant wants to sell electricity in both Mexico and the United States and is applying to DOE for a Presidential permit to construct two 500,000-volt electric transmission lines across the United States border from Mexico. North Branch Resources, LLC, a partner in the proposed project, is applying to interconnect with Western's transmission system in the Yuma area. The applicants are each wholly owned subsidiaries of North Branch Holding, LLC. GDD proposes to construct, own, operate and maintain the power plant in Mexico and the short section of transmission line located in Mexico. The applicants propose that Western construct, own, operate and maintain the double-circuited 500-kV transmission components in the United States, at the applicants' expense. In response to the interconnection request to Western, the transmission line would interconnect with Western's transmission system through a 500/161-kV expansion at Gila Substation, located east of Yuma. Under the proposal, Western would construct, own, operate and maintain the 500-kV transmission line between a Point of Change of Ownership near the international border and the Gila Substation, the 500/161-kV expansion at Gila Substation, and the 500-kV transmission line between Gila Substation and Arizona Public Service Company's North Gila Substation. In that case, Western would become a co-applicant on the Presidential permit application. Project progress
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