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GlenmarySubstation Project

Appalachian Power representatives plan upgrades to the electric transmission system in Roanoke County.

The Glenmary Substation Project involves building Appalachian Power’s new office, a substation and approximately a quarter of a mile of transmission line in the Roanoke County Center for Research and Technology off of Glenmary Road.

Company representatives expect construction to begin in Spring 2021 and conclude by the end of 2021.

Project Updates

Appalachian Power representatives invite community members and landowners to learn more about the project via the "Virtual Open House" through October 9, 2020. To provide feedback or ask questions use the contact form below or call 833-313-3743.

Project Releases

News Release - September 10, 2020 (PDF)


Project Map (PDF)


Project Timeline



Crews plan to build the transmission line using lattice towers within the Roanoke County Center for Research and Technology.

At Appalachian Power, we are committed to meeting the energy needs of customers while protecting the environment and natural beauty of the region.

Proposed Structure Height: 90 - 100 feet*

* Exact structure, height and right-of-way may vary



Substations serve as electrical intersections converting the power to voltage levels for use in homes, businesses and industrial facilities.

* Substation shown is a general depiction of the proposed facilities for the project. It does not represent final design.


Virtual Open House Project Fact Sheet Access Roads Field Activities

Appalachian Power serves approximately 1 million customers in West Virginia, Virginia and Tennessee.

Cortney Mustard

Project Outreach Specialist, Sr.

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