The TransWest Express Transmission Project is a proposed extra high voltage, direct current overhead
transmission line that would run about 728 miles from south-central Wyoming, crossing Colorado and Utah, to the Marketplace Hub about 25 miles south of Las Vegas, Nevada. This Project would include two AC/DC converter stations, about 200 acres in size at each terminating point, a fiber optic network communications system, and two ground electrode facilities, each about 600 acres in size. When completed, this Project would have the capacity to transmit about 3,000 megawatts of electricity generated primarily from renewable resources at planned facilities in Wyoming.
TransWest Express, LLC is proposing to construct, operate, maintain and decommission the TransWest Express 600-kV Direct Current Transmission Project. TransWest Express, LLC is a wholly owned subsidiary of the Anschutz Corporation.
WAPA is supporting TransWest in the development of the Project through its Transmission Infrastructure Program, or TIP. TIP is a program that leverages WAPA's depth of transmission project development experience and provides access to federal financing to eligible transmission infrastructure projects. The development phase determines whether a project can feasibly be constructed and includes environmental reviews, permitting, regulatory approvals, and technical design work.
- Jan. 13, 2017--WAPA finalizes TWE Project environmental review, issues ROD, news release
- April 30, 2015--Final EIS TransWest Express Transmission Project available for public review, news release
- Aug. 23, 2013--TransWest Express, Western leadership tour site in Wyoming, blog post
- July 3, 2013--TransWest Express Project draft EIS available, blog post
- Oct. 12, 2011--TWE chosen for fast-track approval, blog post
- Sept. 9, 2011--Western, TWE execute development agreement for TransWest Express Transmission Project, news release
For the most current and comprehensive project updates, please visit the
TransWest Express LLC's Project website .
Environmental review process:
WAPA and the Bureau of Land Management's Wyoming State Office are co-lead agencies for the preparation of the environmental impact statement, also called the EIS.
WAPA maintains a separate webpage for this process. However, for the most current updates about the EIS, visit
BLM's TransWest Express Project website.