Prestonsburg - ThelmaTransmission Line Rebuild Project

Kentucky Power officials plan to upgrade the electric transmission grid in Floyd and Johnson counties.

The project involves:

  • Rebuilding approximately 14 miles of transmission line to 69-kV standards between Prestonsburg and Thelma substations
  • Retiring approximately 2 miles of 46-kV transmission line between Kenwood Substation and Van Lear Switch Station
  • Retiring Jenny Wiley Switch Station
  • Retiring Van Lear Switch Station

The existing transmission line has experienced multiple power outages in recent years due to lightning and other causes. Currently, the customers served from the Kenwood Substation may experience longer restoration time when the transmission line experiences an outage.

AEP and PJM, the regional transmission organization that monitors the electric transmission grid in our region, have identified additional needs for the upgrades. The proposed upgrades will mitigate identified reliability criteria violations and strengthens the transmission system to increase electric reliability for the area customers.

The proposed upgrades:

  • Allow crews to rebuild the line in a more suitable location. The existing line
  • has no road access and is in mountainous terrain. Walking is the only way to access many of the structures
  • Allow crews to replace aging wooden structures with modern steel
  • structures
  • Allow crews to add modern equipment that protects the line from lightning strikes

We are committed to keeping you informed about this project. Please review the information on this website and click on the virtual open house button at the right to learn more about the project. We also invite you to view our project maps and interactive map above. Please use Microsoft Edge, Google Chrome, Firefox, or Safari internet browsers for the best user experience. You may submit comments and questions about the project through the "Contact Us" link on this page.

We are accepting feedback through Wednesday, January 11. We welcome and encourage your feedback.

Project Updates

November 2022: Kentucky Power representatives announced the Prestonsburg-Thelma Transmission Line Rebuild Project. We will host an in-person open house in your area to provide an opportunity for residents to meet and talk with project representatives. Since there is no formal presentation, residents may join the planned event at any time.

    Monday, December 5, 2022, from 5:30 p.m. – 7:30 p.m.
    Big Sandy Community and Technical College, Building C Auditorium
    513 3rd Street, Paintsville, KY 41240

Also, we invite you to review this website and enter our virtual open house to learn more and share your feedback. For the virtual open house, please use Microsoft Edge, Google Chrome, Firefox, or Safari internet browsers for the best user experience. You may submit comments and questions about the project through the "Contact Us" link on this page. Please share your input by Wednesday, January 11.


Project Timeline



Crews plan to install steel H-frame, lattice tower and three-pole structures along the line route.

Typical Structure Height: Approximately 80-100 feet*
Typical Right-of-Way Width: Approximately 100 feet*

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

Project Maps

Please note that these maps are preliminary and do not reflect any final power line route decisions.


Step 1: Below is an Overview Map that displays the entire project area. Please use the Overview Map to find the general location of your property.


Step 2: Each outlined area on the Overview Map represents a single, numbered Map Page that shows that section in greater detail. Visit the appropriate Map Page below for your area.


Virtual Open House Project Fact Sheet Access Roads Field Activities

Kentucky Power serves approximately 172,000 customers in eastern Kentucky.

Ryan Howell

Right-of-Way Agent

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