The WETT system consists of 375 miles of 345 kV transmission lines and six switching stations. The transmission line facilities consists of a combination of lattice towers and monopoles supported by concrete pier foundations. The system is located in eleven counties, extends from Lubbock to just north of San Angelo and from Odessa to Snyder, and spans approximately 20,000 square miles of territory.

Generation developers seeking to provide power and energy over WETT’s transmission system must first complete the Electric Reliability Council of Texas’ (ERCOT) application process.  Once approved, the generator and WETT execute a standard interconnection agreement. At mid-2016, three wind farms, representing 800 megawatts of generation capacity, connect to the ERCOT power grid through WETT’s transmission system. An additional two wind farms, 400 megawatts of generation capacity, are scheduled for connection by 2018.