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What Size Generator Do You Need for a Kentucky Home?
kW sizing, load calculations, and natural gas vs. propane for whole-home generator installation in Lexington and Central KY.
Lexington Electrical & HVAC TeamApril 28, 20267 min read

Oversizing a standby generator wastes money; undersizing means your AC or well pump won't run when you need them most. A real load calculation — not a brochure recommendation — is how we size every install.
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Common sizes by home type
Most 2,000–3,000 sq ft Lexington-area homes need 18–26 kW for whole-home backup including central AC. Larger homes, heat pumps, and EV charging push toward 24–26 kW or load-management strategies.
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