West Shackelford to Navarro-Sam Switch

West Shackelford to Navarro Sam Switch is a 192-mile, 345 kV transmission line that originates at West Shackelford and terminates at the Sam Switchyard in Navarro County, Texas. The project, sponsored by Lone Star Transmission, costs $410.5m (compared to its original budget of $386m). Construction commenced in November 2011 and was completed February 25, 2013. The final in-service date was March 31, 2013. The project will enable the increased flow of wind energy from western Texas to high load areas in the eastern part of the state.

Project Sponsor Line Miles Voltage (kV) From State To State Year in Service
Lone Star Transmission 192 345 TX TX 2013
Estimated Costs ($M) Voltage Type Project Status Project Group Origin Point Destination Point
410.5 Single Operating CREZ West Shackelford Sam Switch
Interstate Build Start NERC ISO/RTO Country Project Partners
No 2011 TRE ERCOT US NextEra