What size?
kW bands, why the AC sets the number, and whole-house vs essential circuits.
Learn more →
Keep the lights and the AC on
Whole-Home Standby Generators in Baton Rouge
Get a realistic installed price in about a minute, then one quote from a local generator dealer. Free, and you're under no obligation.
- Prices with sources and dates
- City-Parish permit rules in plain words
- One dealer calls, not a crowd
A standby generator being hooked up.
The 60-second cost estimator
Price your generator in a minute.
Make a few selections for a ballpark installed cost. No contact information needed.
Simple by design
Here's how it works.
From a rough number to a real quote, without filling your phone with sales calls.
STEP 01
Price it
Pick the system and size. A price range appears before you share any details.
STEP 02
Send your request
Tell us about your house, fuel and timing. It takes about a minute.
STEP 03
One local dealer calls
One local dealer visits, checks placement and gas, and gives you a firm quote.
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Straightforward pricing
What does a standby generator cost here?
Baton Rouge dealers quote after a visit. These ranges come from today's retail prices, Generac's install figure and local homeowners' reported quotes.
| System | Installed range | Good to know |
|---|---|---|
| Air-cooled, 10–20 kW | $7,500–13,500 | Smaller homes or partial backup |
| Air-cooled, 22–28 kW | $10,000–17,000 | The most common whole-home choice |
| Liquid-cooled, 30–48 kW | $24,000–38,000 | Large homes, 400 A service |
| Essential circuits only | $6,500–14,500 | Chosen circuits, smaller switch |
Natural gas, standard install, checked November 2026. Long gas runs, propane, a 400 A switch and the $500 City-Parish permit are extra.
Find your fit
Answers before the dealer visit.
Four questions decide most quotes. Start with the one you're stuck on.
Gas or propane?
Who supplies gas in each town, tank sizes and prices.
Learn more →Where can it go?
The City-Parish checklist: 5 ft from openings, exhaust, CO alarms, flood height.
Learn more →Is it worth it?
How long the power stayed out after Gustav, Ida and Francine.
Learn more →Hurricane country
Eight days without power is normal here.
When Ida came through in 2021, about 80% of Entergy's East Baton Rouge customers lost power, and most were back only around day 8. After Gustav, half the city was still dark a week later. See the outage history.
Your next step
Get one firm quote.
Ready for an actual price? Tell us what you're considering. We'll send your request to one local, insured dealer, not a marketplace of salespeople.
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Baton Rouge Standby Generators is a referral service, not the company doing the work. We may be paid by the dealer if we refer your project. You pay us nothing.
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Before you build
Permits, placement & fuel
Permit: the City-Parish charges $500 for a residential generator permit; your dealer files it through MGO Connect.
Placement: 5 ft from windows, doors and vents, exhaust pointed away from homes and AC units, CO alarms in every bedroom before final inspection.
Fuel: Delta Utilities supplies Baton Rouge gas; Denham Springs and Zachary run their own systems. No gas line means a propane tank.
Read the full guide →Good questions
Frequently asked questions.
What does a whole-home generator cost in Baton Rouge?
For the common 22–28 kW air-cooled size on natural gas, plan on roughly $10,000–17,000 installed. Smaller air-cooled units start around $7,500; liquid-cooled systems for big houses run about $19,000–38,000. Generac itself puts installation alone (without the generator) at $5,000–10,000 (Generac, 2025).
What size generator does my house need?
It comes down to your air conditioning and other big loads, not just square footage. As a rough guide (our estimate), 22–26 kW runs most 2,000–3,000 sq ft homes with central air; two AC systems or a 400 A panel often point to 26 kW or liquid-cooled. A dealer should do a load calculation before quoting.
Do I need a permit for a standby generator in Baton Rouge?
Yes. The City-Parish lists generator installation as permit work, applied for online through MGO Connect (brla.gov). The residential generator permit is $500, and trade permits are $125 each (fee schedule). Carbon monoxide alarms must be in every bedroom and the living area before final inspection.
How close to the house can the generator sit?
No window, door, dryer vent or other opening may be within 5 ft of it (NFPA 37, written into the City-Parish checklist). Some units can sit 18 in from a wall, but only models tested and marked for it (Generac). The exhaust end must be 10 ft from air intakes and can't point at your house, a neighbor's house or the AC.
I have a zero-lot-line house. Can I still get one?
Maybe not on the narrow side. The City-Parish checklist warns that zero-lot-line lots usually lack the required clearance, and the manufacturer's distances apply at the property line even where there's no fence (generator checklist). Front or rear placement, or a variance, are the usual ways around it.
Natural gas or propane?
If gas is already at the house, natural gas is simpler: no tank, no refills during a long outage. Without it, you need a propane tank: about $800–1,200 for a 250-gallon above-ground tank or $1,500–2,500 buried for 500 gallons, or a lease of $150–180 a year (This Old House).
Who supplies natural gas where I live?
In Baton Rouge it's Delta Utilities, which bought Entergy's gas system in July 2025 (Entergy). Denham Springs and Zachary run their own city gas systems, and Atmos Energy serves parts of Ascension Parish. Your dealer coordinates any meter change with them.
How long does the whole process take?
City-Parish residential plan review is up to 7 business days once your packet is complete. Equipment lead times aren't published and swing after every big storm, so the quiet months between December and May are the time to book. Hurricane season starts June 1.