The Gateway West Project is a joint project being proposed by both Rocky Mountain Power and Idaho Power. The line will stretch nearly 1,000 miles of new 230-kV from the Windstar Substation near Glenrock, WY, to the Hemingway Substation near Melba, ID. The project will involve approximately 200 miles of 230-kV lines in Wyoming and another 800 miles of 500-kV lines in both Wyoming and Idaho. Both Rocky Mountain Power and Idaho Power anticipate that construction of the project can commence towards the beginning of 2016 upon all regulatory approval. The final in-service date would then be expect by the end of 2024. The entire project is part of an effort to ensure electric system reliability in the area as well as provide greater carrying capacity for renewable energy sources.
|Project Sponsor||Line Miles||Voltage (kV)||From State||To State||Year in Service|
|PacifiCorp - West||1000||500||ID||WY||2024|
|Estimated Costs ($M)||Voltage Type||Project Status||Project Group||Origin Point||Destination Point|
|Interstate||Build Start||NERC||ISO/RTO||Country||Project Partners|
|2019||WECC||US||Rocky Mountain Power, Idaho Power|