On February 9th 2012, Appalachian Power filed an application with the Virginia State Corporation Commission (SCC) to construct about 7.5 miles of 138 kV transmission line to reinforce the transmission grid that serves customers in Montgomery County, the Town of Blacksburg and the Town of Christiansburg. The project will connect to the existing Merrimac and Falling Branch substations. The company's application to the SCC identifies a Preferred Route – a 500' wide corridor in which ultimately a 100' right of way will be located. The Preferred Route was developed following an extensive public comment process and environmental analysis (see Siting Process).
Three kinds of power lines exist between Appalachian Power’s customers’ homes and businesses and the company’s power plants
To use an analogy, EHV lines are like electrical interstates, high voltage lines are like limited-access four lane roads, and distribution lines are like two-lane roads that eventually connect to your driveway.
Electric utilities use a variety of different transmission towers and poles to move electricity to where it is consumed. Here are some typical types of transmission towers used by Appalachian Power.
Appalachian Power uses a variety of different transmission towers. These photos of are existing 138 kV transmission lines in service in Roanoke, VA.
In Appalachian Power's Virginia Service Territory, power lines 138 kV and above are reviewed by the Virginia State Corporation Commission. View a flow chart of the approval process. (PDF)
Examples of 138 kV Power Lines