Tehachapi Renewable Transmission Project

The Tehachapi Renewable Transmission Project is a project involving the construction of approximately 173 miles (278 km) of new and upgraded high-voltage transmission lines for transmission of electricity from wind farms and other generating units in southeastern Kern County, California to Los Angeles County and San Bernardino County. The project, developed and operated by Southern California Edison, commenced construction on March 7, 2008 and was completed and placed in operation in December 2016.

Source: Wikipedia — Tehachapi Renewable Transmission Project (CC BY-SA 4.0)