AES Ohio is proposing Fayette substation expansion 1 project, located in Jefferson Township, Fayette County, Ohio.
The proposed Fayette substation expansion 1 project is a necessary upgrade to support 1.5 GW of load growth in the Jeffersonville, Ohio area. Initial service is required by 2026, with additional transmission support by 2031. The proposed project involves expanding the existing Fayette substation, increasing the substation fence line from 19.7 acres to 21.3 acres, adding 1.6 acres. The expansion includes extending the existing 345-kilovolt (kV) ring bus to install eight additional 345 kV circuit breakers with four open future circuit breaker positions. Two 138 kV circuit breakers and two 64.8 megavolt amps reactive (MVAR) capacitor banks will also be installed. These enhancements will support new load demands while increasing capacity, flexibility and redundancy.
Frequently asked questions
The Fayette substation expansion 1 project is located on Fent Road, southwest of Jeffersonville in Jefferson Township, Fayette County, Ohio.

Estimated project schedule
May 2025 |
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July 2025 |
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September 2025 |
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September 2025 |
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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 impacted 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 the AES Ohio Fayette substation and 138kV extension project is 25-0258-EL-BNR.
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 aesohiotransmissionmaintenancegroup@aes.com. You will receive a response within 1-2 business days.