As the interstate freeways for electricity, transmission lines efficiently deliver reliable power to customers and communities.
Our Integrated Resource Plan (IRP) identifies a need for more transmission lines to deliver electricity from new generating resources.
We are active in discussions at state and federal levels on transmission expansion in the region, and are studying and planning projects identified inside and outside of our IRP. This process includes long-range planning to ensure our transmission system integrates well with other utility systems in the Western Electricity Coordinating Council (WECC).
Gateway Central includes three line segments in Utah and Idaho: Populus to Terminal, Mona to Oquirrh and Oquirrh to Terminal.
The Gateway West project is jointly proposed by PacifiCorp and Idaho Power to build and operate approximately 1,000 miles of new high-voltage transmission lines in Wyoming and Idaho.
Gateway South comprises two line segments in Wyoming and Utah: Aeolus to Mona and Sigurd to Red Butte.
This section of line covers areas of Washington and Oregon: Wallula to McNary and Boardman to Hemingway.
|Salt Lake City Foothills||Salt Lake City, Utah||October 2021 - December 2022|
|Southeastern Idaho||Firth, Idaho Falls, Rigby and Rexburg, Idaho||2018-2022|