AES Ohio is proposing the expansion of the current Amsterdam substation, located in German Township, Auglaize County, Ohio.

The project will expand the substation yard, installing a second 138/69 kilovolt (kV) transformer, and replacing an existing 138/69 kV transformer with a new 138/69 kV transformer at the Amsterdam substation. This will also require the addition of four 138 kV and two 69 kV breakers to establish two ring buses, replacing two breakers with new circuit breakers and replacing the existing 22.5 megavolt amps (“MVAR”) capacitor with two new 16 MVAR capacitors.

This project is needed to improve the resilience and reliability of the area power system, increase operational flexibility and to meet the requirements of Honda Development and Manufacturing of America (HDMA) facilities.

Frequently asked questions

The Amsterdam substation is located at 3471 Amsterdam Road, west of State Route 66, in German Township, Auglaize County, Ohio.


Estimated project schedule

November 2022
  • File Letter of Notification Application with Ohio Power Siting Board (OPSB)
March 2023
  • OPSB approval

March 2024
  • Construction begins
January 2025
  • Project in-service

Indicates the current project stage.

During construction, customers should not notice interruption of their electric service. If an outage is required for a short period, the affected customer(s) will be notified before the outage to limit the inconvenience.

Visit the OPSB website to view the application and for more information. The Case Number for AES Ohio's Bath Substation expansion project is 22-0834-EL-BLN.

To contact AES Ohio about the project or request an electronic copy of the application, please leave a message at 937-331-4314 or email You will receive a response within 1-2 business days.