Generator Installation in Louisville, KY
LG&E customers averaged 7.2 hours without power in 2024 — far below the US average of 11 hours. Sustained outages are rarer here than in most of the country, but storm and equipment-driven interruptions still happen — and homeowners with medical equipment, a home office, a well pump or a sump pump often want backup regardless of the average. Below are generator installers serving Louisville and the rest of Jefferson County, ranked by reputation.
How often the power actually goes out in Louisville
2024 · EIA data7.2 hours
average time a LG&E customer spent without power
66%
of the US average of 11 hours — better than typical
1.3
power interruptions per customer that year
Excluding major event days — hurricanes, ice storms and the like — the figure drops to 83 minutes. The gap between the two is the part a standby generator or home battery is really for.
Source: US Energy Information Administration, Form 861 reliability filing for Louisville Gas & Electric Co (IEEE 1366 methodology). SAIDI measures the average minutes a customer was without power across the year. National reliability in 2024 was heavily affected by Hurricanes Beryl, Helene and Milton.
94
GridFree Score
★★★★ 4.9 · 518
92
GridFree Score
★★★★ 4.7 · 991
90
GridFree Score
★★★★ 4.9 · 211
4.Generator Supercenter of Louisville
Top ratedElectric generator shop
87
GridFree Score
★★★★★ 5 · 75
5.Stansbury Electric
Top ratedElectrical installation service
86
GridFree Score
★★★★ 4.7 · 135
85
GridFree Score
★★★★ 4.4 · 189
84
GridFree Score
★★★★ 4.9 · 44
8.Cummins Sales and Service
Top ratedManufacturer
Cummins
80
GridFree Score
★★★★ 4.2 · 55
79
GridFree Score
★★★★ 4.4 · 44
77
GridFree Score
★★★★★ 5 · 5
77
GridFree Score
★★★★ 4.6 · 17
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Get listed →Frequently asked questions
How much does generator installation cost in Louisville?
In Louisville, a whole-house standby generator (18–26 kW) typically runs $10,000–$20,000 installed, including the transfer switch, gas connection, pad and permits. A smaller essentials-only unit (10–14 kW) runs $8,000–$13,000. A portable generator with an interlock kit is the budget option at $800–$2,000.
Do I need a permit for a generator in Louisville, KY?
Almost everywhere, yes. A standby generator needs an electrical permit and usually a gas/plumbing permit, and most states require the work be done by a licensed contractor. A reputable Louisville installer pulls the permit for you — treat anyone who offers to skip it as a red flag, since unpermitted work surfaces at resale and can void insurance claims.
Who installs generators in Louisville?
Licensed electricians and specialized generator dealers handle installation. A standby generator also needs a gas connection, so many jobs involve both an electrician and a plumbing contractor — dealers coordinate both.
Why are outages common around Louisville?
LG&E customers averaged 7.2 hours without power in 2024 — far below the US average of 11 hours. Sustained outages are rarer here than in most of the country, but storm and equipment-driven interruptions still happen — and homeowners with medical equipment, a home office, a well pump or a sump pump often want backup regardless of the average.
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