Aeolous-to-Bridger/Anticline Line

The Aeolus Project involves building a 140-mile, 500-kV transmission line from a new Aeolus substation to a new Anticline substation; 230-kV transmission line from the Shirley Basin substation to the Aeolus substation; rebuilding four miles of existing 230-kV transmission line between the Aeolus and Freezeout substations; and rebuilding 14 miles of a 230-kV transmission line between the Freezeout and Standpipe substation. The project is part of the greater Gateway West Transmission Project. According to THUB calculations, the project has an estimated cost of $300m.

Project Sponsor Line Miles Voltage (kV) From State To State Year in Service
Rocky Mountain Power 140 500 WY WY 2020
Estimated Costs ($M) Voltage Type Project Status Project Group Origin Point Destination Point
300 Planned EGP Aeolus Anticline Substation
Interstate Build Start NERC ISO/RTO Country Project Partners