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Generator Installation · Kentucky
A generator must connect through a transfer switch or an approved interlock so it can never feed power back into utility lines. Electricians install standby generators, portable generator inlets with interlocks, and the transfer equipment for both.
Older homes in Louisville and Lexington, plus spring storms and flooding, account for most repair calls.
Across the Southeast, homes deal with heat, humidity, frequent thunderstorms and hurricane season near the coast. Permit offices, utilities and housing stock differ by city, which affects how generator installation is planned and scheduled. These local guides cover the Kentucky cities where we have written specific notes.
When the remnants of Hurricane Ike hit Louisville in September 2008, hurricane-force winds left most of the city without power, some homes for more than a week, and severe storms still cause outages regularly. A portable generator connected through an inlet and interlock can run the furnace, sump pump and refrigerator safely.
Utility: LG&E
The February 2003 ice storm that left much of Lexington without power for days is still the reference point for many homeowners planning backup power. In winter the furnace blower, sump pump and refrigerator are the usual priorities, which a portable generator can run through an exterior inlet and panel interlock.
Utility: Kentucky Utilities (KU)
1. Size the load
Circuits that must stay powered are listed and the generator sized.
2. Choose the connection
Inlet and interlock, manual transfer switch or automatic transfer switch.
3. Install and inspect
Permitted installation, gas connection by a licensed fitter where needed, and inspection.
Electricians set their own prices; local permit fees and utility requirements add to these factors.
Permits come from the city or county where the home is. For example: Louisville: Louisville and Jefferson County share a merged government, and electrical permits come from Louisville Metro's Office of Construction Review; Jeffersontown runs its own building department. Lexington: Lexington and Fayette County share a merged urban county government, and electrical permits come from its Division of Building Inspection.
Louisville: LG&E. Lexington: Kentucky Utilities (KU).
Listed interlock kits are accepted in many jurisdictions when installed with a permit. Your electrician will know the local rule.
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