News and updates

See the project development milestones and timeline

TWE Project news

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
Previous headlines

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

Stay informed

Join TransWest's email list to receive periodic updates and meeting notifications.

Media contact

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

Additional links

TWE Project brochure (PDF, 1 MB)
National Grid's Renewable Energy Report (PDF, 2 MB)

Ceremonial Groundbreaking

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

It's Time

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

EIS information archive

Review our archive of materials from the 2013 Draft EIS public meetings.
Review our archive of materials from the 2011 public scoping open houses.

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