Delivering Wyoming wind energy to the West
The TransWest Express Transmission Project is a high-voltage, direct current regional electric transmission system proposed by TransWest Express LLC. The TWE Project will reliably deliver cost-effective renewable energy produced in Wyoming to the Desert Southwest region (California, Nevada, Arizona), ultimately helping contribute to a cleaner world, strengthen the electric grid, and provide much-needed electricity to millions of homes and businesses every year. For example, Wyoming’s high-capacity wind energy resources complement California’s renewables, providing geographic diversity that helps Californians not only save money but also achieve GHG emissions reduction goals. The TWE Project has been under development since 2005.
The dotted line indicates the approximate route of this bidirectional transmission line project, from the Marketplace Hub in Nevada to south-central Wyoming, with a potential future terminal near Delta, Utah. The TWE Project aligns with regional transmission development objectives set forth in an April 2005 Memorandum of Understanding signed by the governors of Wyoming, Utah, Nevada and California.
By the numbers
- 3,000 MW transmission capacity
- 600 kV HVDC
- 730-mile route
- 3-year construction creating 1,000+ jobs each year
- $3B estimated cost
Project updates
- Nov. 17, 2017: TWE Project earns Accepted Rating from WECC
- May 31, 2017: USFS issues Record of Decision for the TWE Project
- Jan. 17, 2017: WAPA issues Record of Decision for the TWE Project
- Dec. 13, 2016: BLM issues Record of Decision for the TWE Project
EIS websites
BLM and WAPA are joint lead agencies that prepared an Environmental Impact Statement for the TWE Project. USFS was a cooperating agency. Each federal agency has an EIS-related site:
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Federal focus
Federal "Rapid Response Team for Transmission" selects TWE Project
• See Permitting Dashboard page
In the news
"Renewable resources can be the lowest cost sources of electricity on the grid – and their fuel is free, so transmission that accesses renewable resources is very effective at reducing consumers’ electric bills and the volatility of electricity prices."
- AWEA/SEIA Green Power Superhighways report, February 2009