Golden Valley 230 kV

Increased electrical system reliability

UniSource Energy Services is developing plans for a new double-circuit 230 kilovolt (kV) transmission line that will connect the Harris Substation to the new Mineral Park Substation in Mohave County. The new line would help improve reliability, replace aging equipment and accommodate a projected 5-35 megawatt (MW) increase in customer energy needs over the next decade in the north Golden Valley area. Power within UniSource's Mohave County service territory is transmitted primarily over a 69kV transmission network.

Environmental Assessment Now Available for Review

A draft environmental assessment (EA) for the Golden Valley 230-kV Transmission Line Project is now available for public review. The draft EA was prepared by the Bureau of Land Management (BLM) Kingman Field Office, acting as the lead National Environmental Policy Act, or NEPA, agency.

You are invited to review and provide written comments about the draft EA. To download the EA and for instructions on how to submit comments, please click here to visit the BLM website.

Comments must be received no later than Wednesday, September 2, 2020.

Latest Information

Meeting Materials

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UniSource Energy Services: Map of proposed plans

Map of proposed plans

View an interactive map with proposed transmission line routes and alternatives.

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