News and updates


See the project development milestones and timeline

TWE Project news

Feb. 21, 2024: TWE Project reaches major application milestone for DOE loan guarantee
Sept. 21, 2023: TWE Project construction activity begins in Wyoming
June 30, 2023: Smiles, support surround TWE Project groundbreaking
June 20, 2023: TransWest Express Transmission Project celebrates construction phase with Cabinet Secretaries and groundbreaking in Wyoming
June 5, 2023: TransWest Express chooses Barnard Wilson Joint Venture as transmission line construction partner
April 11, 2023: Interior Department issues the Notice to Proceed for the TransWest Express Transmission Project
Dec. 22, 2022: California ISO approves TWE Project participation application
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
March 16, 2022: Initial transmission capacity allocation process is complete
June 7, 2021: Initial capacity allocation process begins for interregional TransWest Express Transmission Project
April 19, 2019: Wyoming Industrial Siting Council approves state permit for the TWE Project
Dec. 19, 2018 Carbon County Commission approves TWE Project conditional use permit
Nov. 2, 2018 3 open houses in 2 counties inform public about the TWE Project
Oct. 17, 2018 TransWest to host three open houses to share project information in Wyoming
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TWE Project in the news

Dec. 7, 2021 Utility Dive TransWest Express has agreed to sell capacity to PCW
June 19, 2017 Bureau of Reclamation BOR issues its Record of Decision for TWE Project
April 3, 2017 Federal Register DOE Notice of Availability of WAPA's Record of Decision
Dec. 16, 2016 Federal Register DOI Notice of Availability of BLM's Record of Decision
May 1, 2015 Federal Register DOI/DOE Notice of Availability of the Final EIS
May 1, 2015 Federal Register EPA Notice of Availability of the Final EIS
March 24, 2014 SNL Energy NREL study: TransWest Express HVDC line a better deal than Calif. renewables
March 24, 2014 NREL Study Indicates Economic Potential for Wyoming Wind Transmission to California
Feb. 8, 2014 Los Angeles Times Firm seeks to harness Wyoming’s wind energy for California
Jan. 24, 2014 Casper Star-Tribune Wyoming wind power could save California ratepayers $750M, energy lab says
July 3, 2013 Greenwire BLM advances major Wyo.-to-Nev. project
July 3, 2013 Federal Register DOI/DOE Notice of Availability of the Draft EIS
June 28, 2013 Federal Register EPA Notice of Availability of the Draft EIS
Feb. 19, 2013 Greenwire Wyo. dreams of marrying wind to Calif. Markets
Feb. 1, 2013 E&E Publishing Ventures aim to send Wyo. wind power south
Jan. 25, 2013 Wyoming Infrastructure Authority UW study confirms Wyo. wind energy complements, benefits Calif.
Previous headlines

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Media contact

Members of the media with inquiries about the TWE Project should contact Kara Choquette,
Director of Communications, 303.299.1395

Additional links

Ceremonial Groundbreaking

Watch highlights from the TWE Project ceremonial groundbreaking event, held June 20, 2023, in Carbon County, Wyoming.

Ceremonial groundbreaking

It's Time

Check out a video overview of TransWest's transmission line project.

It's Time

EIS information archive

In the news

"Our Nation’s electric transmission grid is the backbone of our economy, a key factor in future economic growth, and a critical component of our energy security. … Modernizing our grid will improve energy reliability and resiliency."

- Presidential Memorandum, June 7, 2013