Gateway South

As part of our Energy Gateway Transmission Expansion, we are planning to build a high-voltage transmission line, known as Gateway South (Segment F), extending approximately 400 miles from the planned Aeolus Substation in southeastern Wyoming into the Clover Substation near Mona, Utah.

The Sigurd to Red Butte line (Segment G) is a critical piece of our Energy Gateway transmission expansion and is the third segment of the expansion to be built. The 345-kilovolt high-voltage transmission line stretching approximately 170 miles originates at the Sigurd Substation, near Richfield, Utah and extends south to the expanded Red Butte Substation near Central, Utah. The Sigurd to Red Butte project was completed in May 2015.

Segment in progress


Segment F – Aeolus to Mona

Project overview

As part of PacifiCorp’s Energy Gateway Transmission Expansion, the company is planning to build a 500 kV high-voltage transmission line, known as Gateway South (Segment F), extending approximately 400 miles from the planned Aeolus substation in southeastern Wyoming into the Clover substation near Mona, Utah.

This proposed line segment is part of the Gateway South portion of PacifiCorp's transmission expansion project.

Project timeline

  • Public Scoping – Early 2011
  • Informational Meetings – Early 2011
  • Environmental Impact Statement – December 2008 - 2016
  • State and local permitting and obtaining rights-of-way – To be determined
  • Estimated line in service for customers – 2024

Landowner maps

Gateway South maps can be viewed below:

Project Overview Map

Landowner parcel map

To contact us about this project, please call us at 801-220-4221 or email ConstructionProjects@pacificorp.com. Please be sure to include the project name – “Gateway South” – in your inquiry.

Completed segment


Segment G – Sigurd to Red Butte

Project overview

The Sigurd to Red Butte line segment is a critical piece of our Energy Gateway transmission expansion and is the third segment of the expansion to be built. The 345-kilovolt high-voltage transmission line stretching approximately 170 miles originates at the Sigurd Substation, near Richfield, Utah and extends south to the expanded Red Butte Substation near Central, Utah. The project was completed in May 2015.

Project timeline

Project in service May 2015

 

(Updated March 2019)