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Mark Etherton

Engineering Manager

Mr. Etherton is the Engineering Manager for the development of the RioSol Transmission Project.

Mr. Etherton is the founder of Transco.Energy, LLC, a regional transmission and energy consulting group, and leads many of the engineering efforts for the RioSol Transmission Project. He has thirty-one years of electric utility experience with responsibilities ranging from project management, system planning and analysis, protective relaying, substation design and communications systems, as well as approximately nine years in utility supervision and management. Mr. Etherton has been actively involved with the regional transmission planning organizations, including: WestConnect; Southwest Area Transmission Subregional Planning Group and its various subcommittees; independent power producers and the Arizona Corporation Commission.

Mr. Etherton achieved a B.S. in Electrical Engineering (with an emphasis in Power Systems) from New Mexico State University.  He has been a Registered Professional Engineer in Arizona since February 1990.

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