Western's banner shows transmission lines.
Link to Western's home page
Transmission OASIS Functions OATT Revisions Interconnection Infrastructure projects

Hualapai Valley Solar Project

Hualapai Valley Solar, LLC, a wholly-owned subsidiary of Mohave Sun Power, LLC, proposes to construct, operate and maintain a 340-megawatt, solar-powered generating facility in Mohave County, near Kingman, Ariz. The proposed project would use concentrating solar-power-trough technology to capture the sun's heat to make steam, which would power a traditional steam turbine generator. Proposed infrastructure would consist of a solar field, power block, thermal energy storage system, substation site, transmission line, temporary laydown areas and other ancillary facilities.

Western will prepare an environmental impact statement to address Hualapai Valley Solar's request to interconnect the proposed project to Western's transmission system and any necessary modifications to Western facilitites to accommodate the interconnection. The EIS will also review the potential environmental impacts of constructing, operating and maintaining the proposed project.

The proposed project would interconnect with Western's transmission system at one of two alternative locations, either the 500-kV Mead-Phoenix Transmission Line or the 345-kV Liberty-Mead Transmission Line.

Open-house public scoping meeting scheduled

Western will host an open-house public scoping meeting Thursday, Oct. 1, from 6 to 8 p.m., at the Kingman High School, 4182 Bank St., Kingman, Ariz. 86409 to share information and answer questions about the proposed project. Following a brief presentation, you will have an opportunity to visit with project staff to ask questions and provide written comments.

Your comments will help us define the issues to be addressed in the environmental impact statement. You are invited to suggest specific issues and concerns that should be evaluated in the EIS.  Western should receive your comments by Oct. 23. You may comment online or send written comments by fax, e-mail or U.S. Postal mail to

Ms. Mary Barger
NEPA Document Manager
Western Area Power Administration
Desert Southwest Region
P.O. Box 6457
615 S. 43rd Avenue
Phoenix, AZ 85005
Fax: 602-605-2630
E-mail: HVSolarEIS@wapa.gov

Scoping materials

Comment form - mail-in (18 kb pdf)
Comment form - online
Local direct-mail announcement (23 kb pdf)
Scoping meeting flyer (1.2 MB pdf)
Scoping meeting new release - Sept. 16, 2009
Project area map (95 kb pdf)

Project updates

Notice of intent to prepare an environmental impact statement (46 kb pdf)
EIS determination

Contact information

Ms. Mary Barger
NEPA Document Manager
Western Area Power Administration
Desert Southwest Region
P.O. Box 6457
615 S. 43rd Avenue
Phoenix, AZ 85005
Voice: 602-605-2524
Fax: 602-605-2630
E-mail: HVSolarEIS@wapa.gov