Critical grid infrastructure to connect the West
By the numbers
- 732 miles of high-voltage transmission infrastructure consisting of two systems: a 3,000 MW direct current (DC) segment with terminals near Sinclair, Wyo., and Delta, Utah; and a 1,500 MW alternating current (AC) segment from the Utah terminal to southern Nevada.
- $3 billion estimated cost
- DC system terminals to be phased over time from 1,500 MW to 3,000 MW of transmission capacity
- Dec. 5, 2022: TransWest Express selects Siemens Energy as HVDC technology partner
- July 25, 2022: TransWest Express Transmission Project submits application to join California ISO balancing authority
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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In the news
"Wyoming is taking center stage in being recognized for its true world-class wind resource potential as an electric energy source. The key to its development remains the construction of major high-voltage transmission lines that must be built to move this sought-after product to market."
- Steve Ellenbecker, former director of governmental and external relations for the Wyoming Infrastructure Authority