Big Eddy-Knight Transmission Project

Big Eddy-Knight Transmission Project is a 28-mile, 500-kV transmission line that originates at the Big Eddy substation, Ore., and terminates at Knight substation, Wash. The project was partially funded by the American Recovery and Reinvestment Act of 2009. The first 14 miles was constructed as a double circuit on existing transmission lines. The last 14 miles involved new right-of-way. The project was designed to increase transfer capability in the region improving response to new interconnection requests, particularly wind projects. Construction began in September 2011 and was completed fall 2015.

Project Sponsor Line Miles Voltage (kV) From State To State Year in Service
Bonneville Power Administration 28 500 OR WA 2015
Estimated Costs ($M) Voltage Type Project Status Project Group Origin Point Destination Point
200 Operating Big Eddy Knight Substation
Interstate Build Start NERC ISO/RTO Country Project Partners
2011 WECC US