Patina - Mirkwood Transmission Project

AEP Ohio representatives plan power grid upgrades in Madison County. The project involves building Patina Station, Mirkwood Station, and about 11 miles of transmission line to provide power to a customer facility and help meet the area’s growing electrical load demand.

The project involves:

• Building Patina Station near the intersection of Rosedale-Plain City Road and State Route 38 and Mirkwood Station near the intersection of State Route 161 and Cemetery Pike.
• Building two 11 mile 345-kilovolt (kV) double circuit transmission lines connecting Patina and Mirkwood stations.
• Transmission improvements connecting AEP Ohio and customer facilities to the power grid.

*This project requires Ohio Power Siting Board (OPSB) approval.

Company representatives plan to evaluate study segments in the area for the proposed power line corridors. Study segments are multiple alternatives presented to determine line routes. Company representatives do not build all study segments, but rather they select two transmission line routes based on public feedback and feasibility.

Summer 2026: The project team hosted an in-person open house on April 30 to discuss the project and obtain feedback from the community. A virtual open house is available on the right side of the page. 

As the project continues to develop, field studies are needed to help the project team decide on the final line route, as well as support engineering and environmental efforts. As part of this work, landowners may be contacted by OR Colan, Inc. (ORC), the right-of-way company working on behalf of AEP Ohio. Field studies do not confirm a line route but are a tool used to help the team during the evaluation process.