Project overview

As part of its Energy Gateway regional transmission expansion project, PacifiCorp plans to build an approximately 375 mile, single-circuit 500 kilovolt transmission line from Hemingway substation in western Idaho, across Oregonto the Bonneville Power Administration’s Captain Jack substation near Klamath Falls. This segment will help PacifiCorp better integrate its East and West control areas, allowing increased system flexibility and reliability. It also will help deliver more renewable energy to serve its Oregon, Washington and California customers. This project is currently in the Western Electricity Coordinating Council regional planning process, which will seek to find the best final configuration and terminus points considering other projects and needs in the area.

Project timeline

This line segment is in early planning changes, and will be brought in service as soon as possible.

Additional information about the project

Public input is a very important part of this process, and the company is eager to involve the public in all stages of this transmission line development. Additional information about this proposed transmission line will be posted on this Web site as the project progresses and details are developed. Please check back throughout the timeframe of the project.

(updated August 12, 2008 )