AES Ohio is investing in the electric transmission system to help improve reliability and operational flexibility for all customers in and around the City of Celina in Mercer County, Ohio. The improvement project involves building approximately 3 miles of new transmission lines, rebuilding 2.5 miles of existing transmission lines, retirement of the existing Celina Substation and the addition of Grand Lake substation.

Project map

Visit the Celina Area Improvements map to view proposed project.


The project includes:

  • Building 2.5 miles of new 69kV single circuit transmission line
  • Building 0.3 miles of new double circuit 69kV transmission line
  • Rebuilding 2.5 miles of double circuit 69kV transmission line
  • New Grand Lake 69kV Substation