Critical grid infrastructure to connect the West
By the numbers
- 732 miles of high-voltage transmission infrastructure consisting of two systems: a 500kV direct current (DC) system with terminals near Sinclair, Wyo., and Delta, Utah; and a 500kV alternating current (AC) system from the Utah terminal to Boulder City, Nev.
- $3 billion estimated cost
- DC system terminals to be phased over time from 1,500 MW to 3,000 MW of transmission capacity
- Feb. 26, 2021: FERC approves TransWest’s proposed process for allocating transmission capacity
- April 19, 2019: Wyoming Industrial Siting Council approves state permit for the TWE Project
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
"Transmission is the biggest barrier to the development of Wyoming's considerable wind energy resources. But not only do we need to build the lines to carry this renewable energy to market, these lines must be 'right-sized' from the start. The key is to get the maximum number of electrons transferred with the least amount of environmental disturbance."
- Wyoming Governor Dave Freudenthal, 2009