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
"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