Notice of upcoming public informational open house
AES Ohio is holding a public informational open house for the project on Monday, November 17, 2025 from 5:00 PM to 7:30 PM in Ballroom B of the Roberts Centre, 123 Gano Road Wilmington, Ohio.
The open house event will provide an opportunity to discuss the project with the team. There is no formal presentation. Please see below for updated FAQs on the project.
The Fayette-Clinton 345kV transmission line project is part of the necessary upgrades to support the increased capacity requirements driven by load growth from large customer projects in the area. The project involves building approximately 30 miles of new single circuit 345kV transmission line.
In addition, AES Ohio will need to expand the Fayette substation and the Clinton substation. The substation expansions are associated projects and will have separate project websites and applications to the Ohio Power Siting Board.
Why is this project needed?
AES Ohio is investing in network enhancements driven by large customer projects in the area. The latest load requests necessitate significant additional transmission support by 2031. These network enhancements will both serve that new load and provide increased capacity, flexibility, and resiliency to the entire southeast region of the AES Ohio service territory.
AES Ohio is proposing the construction of a new single circuit 345kV line connecting the AES Ohio Fayette substation in Jeffersonville, Ohio, to the AES Ohio Clinton substation in Wilmington, Ohio. This new Fayette-Clinton 345kV transmission line will introduce an additional energy source into the region. Additionally, these facilities will facilitate operational flexibility for preventative maintenance on other transmission lines and transmission substation equipment in the region.
Project map
Visit the Fayette-Clinton 345kV transmission line project map, where you can also leave your project feedback.
This project covers:
- Fayette, Greene, and Clinton Counties
- Villages of Jeffersonville, Octa, Milledgeville, Bowersville, and Sabina
- City of Wilmington
- Jasper Township
- Jefferson Township
- Wilson Township
- Richland Township
- Wayne Township
- Green Township
- Washington Township
Details
The project includes:
- Building a new 345kV transmission line between Fayette and Clinton substations
- Expanding the existing Fayette transmission substation (associated project*)
- Expanding the existing Atlanta transmission substation (associated project*)
Associated projects have separate Ohio Power Siting Board (OPSB) filings and project websites.
Typical structures
The project involves the use of self-supporting steel poles on foundations with above-ground heights ranging from approximately 115 ft. to 195 ft. with an approximate ROW easement width of 200 ft.
Fayette-Clinton 345kV transmission line project timeline:
Where can I get more information?
AES Ohio expects to submit an application for a “Certificate of Environmental Compatibility and Public Need” to the Ohio Power Siting Board (OPSB) in the winter of 2026. The Public Utility Commission has assigned case number 25-0871-EL-BLN to the project. Visit the OSPB website at https://opsb.ohio.gov/ and enter case number 25-0871-EL-BLN for additional information about the project.
To contact AES Ohio about the project or request an electronic copy or hard copy of the application, please leave a message at 937-701-0674 or email aesohionewprojectoutreach@aes.com.
About AES Ohio
- Serving 539,000 customers across 24 counties
- Approximately 19,000 miles of transmission, distribution and underground lines
- 6,000 square mile service territory
AES Ohio invests in our equipment and technology to create a stronger, safer and more efficient electrical system. We know our customers depend on us to provide the electricity they need to power their lives.
