What is the average cost of installing a standby generator?

A standby generator installation in North Georgia runs $9,000 to $16,000 for a 20-22kW unit, including the generator, concrete pad, propane line, transfer switch, electrical work, and permit. Mountain terrain and rocky soil push costs toward the higher end. HomeGuide reports a national average of $6,000 to $11,000.

Do I need a permit for a standby generator in Georgia?

Yes. Georgia requires a licensed electrical contractor for the panel connection and transfer switch under Georgia Code 43-14-8. Fannin County also requires a building permit and final inspection. A general contractor pulls and manages the permit so you don't coordinate with the county directly.

How big of a generator do I need for a 2,500 sq ft cabin?

A 2,500 sq ft mountain cabin with a well pump, heat pump, water heater, and standard appliances typically needs an 18-22kW standby generator. If you have a hot tub, go with 22kW minimum. The right size depends on your specific electrical loads, not just square footage. An on-site load calculation gives you the accurate number.

Which lasts longer, Kohler or Generac?

Both brands are rated for 10,000+ hours of operation with proper maintenance. Both carry a 5-year standard factory warranty, though Kohler periodically offers a free 10-year extended warranty promotion on qualifying models (verify availability at purchase). In practice, maintenance habits matter more than brand. Either unit should last 20-25 years with regular oil changes and annual professional service.

How much propane does a standby generator use per hour?

A 20kW Kohler running at 50% load burns approximately 2.0 gallons of propane per hour, while a 22kW Generac burns roughly 2.5 gallons per hour. A 500-gallon tank with 400 usable gallons provides 160-200 hours of runtime at half load depending on brand, enough for a week or more of continuous operation.

What is the 20-20-20 rule for generators?

The 20-20-20 rule is a safety guideline: keep a portable generator at least 20 feet from your home, pointed away from windows and doors, and never run one in an enclosed space. This rule applies to portable generators only. Standby generators are permanently installed with proper ventilation clearances built into the code-compliant installation. Disclaimer: Generator installation involves electrical and gas work regulated by Georgia state code. All electrical work referenced in this article is performed by licensed electrical contractors in compliance with Georgia Code Section 43-14-8. Permit requirements and fees may vary by county. Cost estimates are based on FTH Construction's project experience in Fannin County and may vary by property. This content is for informational purposes and does not constitute a warranty or guarantee of pricing.

Kohler vs Generac Generator | Mountain Cabins Blue Ridge GA