How Much Does Generator Installation Cost in Hattiesburg, MS?
A 22 kW whole-house generator costs $7,000 – $11,000 installed in Hattiesburg (close to the MS average — central Mississippi pricing). The primary outage risk is tornadoes and hurricane remnants. Mississippi Power serves the area with approximately 32 hours of outages per year.
Generator Installation Cost in Hattiesburg
| Setup | Size | Cost in Hattiesburg |
|---|---|---|
| Essential circuits | 10-16 kW | $4,500 – $8,000 |
| Whole house | 20-22 kW | $7,000 – $11,000 |
| Large home | 24-48 kW | $10,500 – $16,500 |
Hattiesburg sits in southern Mississippi, far enough inland to avoid the worst storm surge but close enough to the coast to get hurricane remnants. Tornadoes are a frequent threat.
Not sure what size you need? Use our sizing guide or interactive calculator for a personalized recommendation. For the full national breakdown, see our installation cost guide.
Hattiesburg-Specific Installation Requirements
Local Code — Forrest County
Forrest County follows the IRC. Standard electrical permit.
Permits
Permit cost: $50 – $150. Timeline: 1-2 weeks. Your installer handles filing and inspection.
Preferred Fuel: Natural Gas
CenterPoint Energy provides natural gas in Hattiesburg.
See statewide Mississippi costs and requirements for comparison.
Power Outage Risk in Hattiesburg
3.5
Outages/year
9h
Avg duration
Tornadoes and hurricane remnants
Primary risk
Mississippi Power
Local utility
The January 2017 EF3 tornado struck Hattiesburg, causing significant damage across the University of Southern Mississippi campus.
How Much Does a Home Generator Cost?
Get an instant estimate based on your home size and power needs.
Recommended size
22 kW
Estimated cost
$7,700 – $12,100
Includes equipment, installation, transfer switch, and permits
As low as $83/month with approved financing
Prices vary by location. Enter your ZIP code for local estimates.
FAQ — Generator Installation in Hattiesburg
How much does a generator cost in Hattiesburg?
A 22 kW generator costs $7,000-$11,000 installed. Among the most affordable in the US.
Is Hattiesburg at tornado risk?
Yes. The January 2017 EF3 tornado struck the city directly, damaging the USM campus.
Natural gas or propane?
Natural gas via CenterPoint Energy in the city. Propane in rural areas.
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