How big of a generator do I need for my Louisville home?

It depends on your square footage, HVAC tonnage, and what loads you want to keep running. As a rough guide: a 1,500–2,200 sq ft home with a single AC unit is typically a 14kW; 2,500–3,500 sq ft with a 2-stage AC needs 18–22kW; 4,000+ sq ft with two HVAC zones usually needs a 22–26kW. We do a free on-site load calculation so you don't pay for capacity you don't need.

Will a Generac generator run my whole house including AC?

Yes — when properly sized. A 22kW or 26kW Generac Guardian will run a typical Louisville home including a 4-ton central AC, refrigerator, well or sump pump, lights, and outlets at the same time. Smaller units (14–18kW) use a load-management module that smartly cycles large loads to stay within capacity.

Does a Generac generator need natural gas or propane?

Generac air-cooled generators run on either natural gas (most Louisville homes already have it from LG&E) or propane from an above-ground or buried tank. We install both. Natural gas is the most popular choice in the city because the fuel never runs out during an extended outage.

How long does generator installation take in Louisville?

From signed quote to a working, commissioned generator usually takes 4–8 weeks. The bottleneck is typically the Louisville Metro / Jefferson County permit and inspection, not the install itself — the actual on-site work is 1–2 days for residential and 3–5 days for commercial.

Do I need a permit for a generator in Louisville KY?

Yes. Louisville Metro requires both an electrical permit and (for natural gas units) a gas permit. We pull every permit, schedule the inspection, and handle the paperwork as part of the turn-key price. A generator installed without a permit will void your homeowner's insurance claim if there is ever a fire.

What's included in your generator installation price?

Everything: the Generac generator itself, the automatic transfer switch (ATS) sized to your service, the concrete pad, the natural gas line from your meter (up to 25 ft of standard run), the electrical wiring to your panel, the permit, the inspection, the commissioning, the Wi-Fi Mobile Link setup, and the first-year service. No surprise add-ons.

How often does a Generac generator need service?

Generac requires annual maintenance to keep the warranty valid: oil change, filter replacement, spark plug check, battery test, and a full load test. We offer maintenance plans starting around $295/year. The generator itself runs a self-test every week (you'll hear it briefly on a scheduled day) to verify it is ready.

Can you install a generator at a commercial property in Louisville?

Yes. We are a commercial electrical contractor and have installed standby generators ranging from 35kW to 150kW for offices, restaurants, retail, medical facilities, and warehouses across Louisville and Southern Indiana. We handle three-phase, paralleling, fuel polishing, and code-required emergency lighting integration.

What if my generator fails during a power outage?

Call (502) 921-3777 — we provide 24/7 emergency generator service. As an authorized Generac dealer with factory training, we can troubleshoot common alarm codes, replace batteries and starters, and get most units back online same-day. We also stock common Generac replacement parts.

Do you finance generator installation in Louisville?

We provide free written quotes and can discuss available payment options for whole-home and commercial generator projects. Call (502) 921-3777 and we will walk you through what's available based on the size of your install.

Generator Installation in Louisville, KY — Whole-Home & Commercial

Never Lose Power Again. Generac Standby Generators, Installed Right.

Hadley Energy Solutions is Louisville's family-owned, fully licensed generator installation contractor and authorized Generac dealer. We design, size, install, and maintain whole-home and commercial standby generators across Louisville, Jefferson County, and Southern Indiana. Every install is performed by a Kentucky Master Electrician and includes the natural-gas hookup, automatic transfer switch, concrete pad, permit, and final inspection — all under one roof. Call (502) 921-3777 for a free on-site assessment and same-week quote.

Call (502) 921-3777 Get a Free Estimate

Licensed CE64623 | ME64500 | HVAC Master #HM06538 · Family-Owned in Louisville Since 2013

Generac Authorized Dealer Master Electrician #ME64500 Free On-Site Sizing & Quote Permit & Inspection Included Generator Service & Maintenance Plans Family-Owned in Louisville Since 2013

Standby Generators Installed in KY & IN

0/7

Emergency Generator Service

0 yr

Standard Generac Warranty Coverage

Standard ATS Included with Whole-Home Installs

What Does Generator Installation in Louisville KY Actually Cost?

A whole-home Generac standby generator installed in the Louisville area typically runs $8,500 – $18,000 turn-key, depending on the size of your home, the generator capacity (10kW to 26kW), the distance from your gas meter and electrical panel, and whether you need a new gas line or panel work. Commercial generators (35kW – 150kW) range from $20,000 to $90,000+ installed. Hadley Energy Solutions provides a written, all-inclusive quote — no surprise add-ons for the pad, transfer switch, permits, or first-year service.

Louisville sees an average of 4–6 multi-hour LG&E outages per year from ice storms, summer derechos, and aging infrastructure. A properly sized Generac standby generator runs on your existing natural gas line, starts automatically within 10 seconds of an outage, and powers your entire home — HVAC, refrigerator, sump pump, well pump, lights, and outlets — until utility power is restored. We are an authorized Generac dealer and the same Master Electrician (#ME64500) who installs the generator handles your panel, ATS, and gas hookup.

Generator Services for Louisville Homes & Businesses

From a 10kW standby for a 1,500 sq ft Highlands bungalow to a 150kW commercial unit for a Louisville warehouse, we handle every step from sizing to startup.

Whole-Home Standby Generators

Generac Guardian and Protector series, 10kW–26kW, sized for your specific home and load profile. Covers central AC, furnace, sump pump, well pump, refrigerator, lights, and all outlets — automatically.

Commercial Standby Generators

35kW–150kW+ liquid- and air-cooled units for offices, restaurants, medical facilities, retail, and warehouses across Louisville. Three-phase capable. NEC-compliant transfer switching.

Automatic Transfer Switch Install

Whole-house 200A or service-entrance ATS, plus dedicated-circuit and load-shedding transfer switches. Sized to your panel and code-compliant for Kentucky.

Generator Service & Repair

We service Generac, Kohler, Briggs & Stratton, and Cummins generators. Annual maintenance plans, oil and filter changes, battery replacement, and emergency repair.

Load Calculations & Sizing

Free on-site assessment to right-size your generator. Oversizing wastes thousands; undersizing trips the unit during peak load. We get it exactly right.

Wi-Fi Monitoring (Mobile Link)

Generac Mobile Link gives you real-time generator status, run history, and maintenance alerts on your phone — included on every install at no extra cost.

Our 4-Step Generator Install Process

Free On-Site Assessment

We measure your home, walk the gas and electrical run, do a load calculation, and quote a turn-key price in writing — usually same-week.

Permit, Pad & Gas

We pull the Louisville Metro / county permit, set the concrete pad, run the gas line from your meter (or upgrade it), and prep the trench to your panel.

Generator & ATS Install

Our Master Electrician sets the Generac unit, wires the automatic transfer switch into your service-entrance, and bonds the system per NEC and KY code.

Startup, Test & Mobile Link Setup

We commission the generator, simulate a power loss, verify automatic transfer, and set up Wi-Fi monitoring on your phone before we leave.

Generator Installation Pricing in Louisville, KY

All prices are turn-key — generator, ATS, concrete pad, gas hookup, permit, inspection, and Wi-Fi setup included.

Service	Typical Range (Louisville, KY)
10kW Generac Guardian (small home) Up to ~1,800 sq ft, basic loads	$8,500 – $11,500
14kW Generac Guardian Most popular for Louisville homes	$10,500 – $13,500
18–22kW Generac Guardian 2-zone HVAC + heavy loads	$12,500 – $16,500
26kW Generac Guardian (large home) Whole-home, no load management needed	$15,500 – $18,500
Commercial 35–60kW Single or three-phase	$22,000 – $42,000
Commercial 80–150kW+ Custom quote required	$45,000 – $90,000+
Annual Maintenance Plan Oil, filter, battery test, full inspection	$295 – $495 / yr

Prices are estimates only. Hadley Energy Solutions provides free, written, no-obligation quotes for every project.

Why Louisville Chooses Hadley for Generator Installation

Generac Authorized Dealer

Factory-trained on Generac Guardian, Protector, and Industrial series — including warranty service that other contractors can't perform.

One Contractor, One Permit

Electrical work, gas hookup, concrete pad, and permit all handled in-house under our Master Electrician license. No coordinating 3 trades.

Honest Sizing — No Upsell

We do a real load calculation. If a 14kW handles your home, we don't push a 22kW. You save thousands and the unit lasts longer.

Local Service After the Sale

Our service techs are based in Hillview, KY. When your generator needs a part or runs an alarm, we are 30 minutes away — not a national 800 number.

Fast Install Timeline

Most Louisville home installs go from quote to commissioning in 4–8 weeks, including permit. Commercial schedules vary by scope.

Family-Owned, Locally Trusted

Founded by Rodney Hadley in 2013. We have installed generators across the Highlands, Prospect, Anchorage, Hurstbourne, Mt. Washington, and Floyds Knobs.

What Louisville Customers Say

5.0 on Google

Customer Reviews

What Our Customers Say

5-Star Rated on Google

"Service was top notch. One of the best company's I have had the pleasure of doing business with. The work crew is full of energetic knowledgeable employees. I would recommend them to anyone."

— John R.

Google Review

Louisville Neighborhoods We Install Generators In

From compact bungalows in Crescent Hill to 6,000 sq ft estates in Anchorage and Prospect, we have sized and installed standby generators across the entire Louisville metro.

Highlands

Crescent Hill

St. Matthews

Anchorage

Prospect

Hurstbourne

Lyndon

Middletown

Jeffersontown

Fern Creek

Okolona

Valley Station

Pleasure Ridge Park

Glenview

Indian Hills

Audubon Park

Nearby Cities We Also Serve

Louisville, KY Shepherdsville, KY Mt. Washington, KY Jeffersontown, KY Hillview, KY La Grange, KY Bardstown, KY New Albany, IN Jeffersonville, IN

Frequently Asked Questions

Get a Free Generator Quote for Your Louisville Home

Call (502) 921-3777 or request an estimate online. We'll come measure, do a load calculation, and give you a written turn-key price — usually within the same week.

Get a Free Estimate Call (502) 921-3777