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

"To accelerate the creation of a clean energy economy, we will double our capacity to generate alternative sources of energy like wind, solar and biofuels over the next three years. We'll begin to build a new electricity grid that lay down more than 3,000 miles of transmission lines to convey this new energy from coast to coast."

- President Barack Obama, weekly address, Jan. 24, 2009