How Much Does Generator Installation Cost in Louisiana in 2026?
A standard 22 kW whole-house generator costs $8,000 – $12,500 installed in Louisiana (below average vs. national average). The primary outage risk is hurricanes & flooding. Best time to buy: january through april.
Why Louisiana Needs Backup Power
Louisiana experiences some of the longest power outages in the nation, averaging over 13 hours per interruption. Entergy's aging infrastructure means even tropical storms cause multi-day outages.
Hurricane Ida (2021) knocked out power to all of New Orleans for over two weeks. Parts of southeast Louisiana were without electricity for six weeks. Power in Louisiana is served by Entergy Louisiana, Entergy New Orleans, SWEPCO, Cleco. According to the Louisiana State Electricity Profile, the state averages 4.5 outages per year with a mean duration of 13.5 hours per event.
4.5
Outages/year
13.5h
Avg duration
Hurricanes & flooding
Primary risk
Aging infrastructure
Secondary risk
How Much Does It Cost in Louisiana?
| Setup | Size | Cost Range (Installed) |
|---|---|---|
| Essential circuits | 10-16 kW | $5,000 – $9,000 |
| Whole house | 20-22 kW | $8,000 – $12,500 |
| Large home / liquid-cooled | 24-48 kW | $12,000 – $19,000 |
Below-average costs due to lower cost of living and labor rates. Flood zone requirements add $200-$600 for elevated mounting in many parishes. For a full national breakdown, see our installation cost guide. Not sure what size you need? Use our sizing guide.
Louisiana-Specific Installation Requirements
Local Building Code
Louisiana follows the NEC with state amendments. Flood zone installations require elevated mounting. New Orleans has specific permit requirements.
Additional code-related cost: $200 – $600
Permits
Permit timeline: 1-2 weeks. Cost: $50 – $200. Your installer handles the filing and inspection.
Preferred Fuel: Natural Gas
Natural gas is widely available and cheap. Propane is common in rural parishes.
Comparing brands? Read our Generac vs Kohler comparison. Preparing for storm season? See our hurricane season generator guide.
Best Time to Buy a Generator in Louisiana
January through April. After Ida, installer wait times exceeded 6 months. Buy early.
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.
Generator Installation in Louisiana by City
Frequently Asked Questions — Louisiana
Do I need flood-rated generator mounting in Louisiana?
In designated flood zones (common across coastal and low-lying parishes), yes. The generator must be mounted above the base flood elevation. This adds $200-$600 to installation cost.
What size generator for a Louisiana home?
Average Louisiana home is about 1,700 sq ft. A 20 kW generator covers whole-house including AC. Don't go essential-only unless you're fine sweating for a week.
How long will I wait for installation in Louisiana?
Off-season: 2-3 weeks. During hurricane season: 4-8 weeks. After a major storm: 3-6 months. Post-Ida, some waited until 2022.
Is Entergy's grid getting more reliable?
Entergy has invested since Ida, but Louisiana's grid remains one of the least reliable in the nation. A standby generator is the only dependable backup.
Natural gas or propane in Louisiana?
Natural gas in urban areas (New Orleans, Baton Rouge, Shreveport). Propane in rural parishes. If on propane, get a 500-gallon tank minimum.
Ready to Get Generator Quotes in Louisiana?
Compare prices from certified local installers. Free and no-obligation.
Get Your Free Quote Now