Newhart-Swisher 230 kV Transmission Line Project

The Newhart-Swisher 230 kilovolt (kV) transmission line was placed into service on December 15, 2014. The transmission line will maintain electric reliability in Castro, Parmer, Swisher, Bailey, Lamb and Hale counties as customer load growth and new generation resources are added to the transmission grid. The project consists of about 16 miles of new 230 kV transmission line connecting the Newhart Substation, located about five miles northeast of Hart, Texas, at the northeast intersection of County roads 620 and 527, to the existing Swisher Substation which is located about one mile west of Interstate 27 at the northwest corner of the intersection of County Roads Y and 12. A Certificate of Convenience and Necessity was filed with the PUCT on December 20, 2011. The PUCT approved the CPCN application in July 2012. Construction is underway.

The 230 kV line is being constructed of steel structures. The structures, which are between 80 and 140 feet tall, are spaced 500 and 800 feet apart.

Quick Facts
Estimated length
19 miles
Estimated cost
$19.5 million
In-service date
December 15, 2014