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GeneracModel 7705

Generac GP15500EFI 15500W/19300W Generator Gas 50A COSense Electric Start

  • Peak19.3 kW
  • Running15.5 kW
  • FuelGasoline
  • StartElectric
  • Outlet50 A
Black Friday price
$2,809.00

Black Friday price ends in —

In stock Ships within 24 hours

Free delivery Thu, Nov 5 – Tue, Nov 10 if you order today, by UPS or FedEx Ground to your door.

Not available in California. This model is not CARB certified, so we cannot ship it to a California address.

  • Free shipping48 states + DC
  • 30-day returnsReturn shipping on us
  • Full warrantyBrand-new, from the maker
  • Secure checkoutEncrypted by Stripe
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Questions before you buy? Our small team in Wilmington, NC answers every message personally. Email [email protected]

From emergency home backup to DIY projects to the jobsite, the Generac GP15500EFI portable generator provides high wattage, dependable portable power.

Running watts
15,500 W
Starting watts
19,300 W
Fuel
Gasoline
Start
Electric
Largest outlet
50 A
Safety
CO shutdown sensor

From emergency home backup to DIY projects to the jobsite, the Generac GP15500EFI portable generator provides high wattage, dependable portable power. Equipped with an 816cc engine with Electronic Fuel Injection, the GP15500EFI delivers power efficiently, providing up to 11 hours of runtime at 50% load. TruePower™ Technology safely powers sensitive electronics, appliances and tools while onboard COsense® Technology provides powerful protection against hazardous carbon monoxide.

The GP15500EFI also features electric start (battery included), low-oil shutdown protection, circuit breaker protected outlets and an hour meter with maintenance resets. The included never-flat wheel kit and available lifting eye accessory make transportation easy around the home or jobsite.

Not for sale in California.

Run time on a full tank

50% load11 hrs

As published by the manufacturer. Real run time depends on load and fuel.

Full specifications

BrandGenerac
Model7705
Running watts15,500 W
Starting watts19,300 W
FuelGasoline
StartElectric
Largest outlet50 A
SafetyCO shutdown sensor
UPC / GTIN696471083705
How it shipsUPS or FedEx GroundTo your door, free
Order today, deliveredThu, Nov 5 – Tue, Nov 10Leaves our warehouse within 24 hours

Tracking is emailed as soon as it ships.

We ship to the 48 contiguous states and Washington, DC. Shipping details · 30-day free returns

Brand-new, with the full manufacturer’s warranty. The terms are set by Generac and included in the box. If something goes wrong, contact us first: we confirm the next steps within 2 business days and help you file the claim.

How warranty claims work

What it can run

15,500 W running, 19,300 W starting

Pick what you want to power at the same time.

Typical wattages – check the label on your own appliances. Where only one figure is published, running watts are estimated at 80% of the starting figure. Connect to house circuits only through a transfer switch or interlock fitted by a licensed electrician.

Compare similar generators

Same power class, side by side.

SpecificationGenerac GP15500EFI 15500W/19300W Generator Gas 50A COSense Electric StartThis generator$2,809.00Smart Generators SG11004 The Motorhead 12000W/20000W Natural Gas NG/LP Propane Portable Generator With Honda Engine$3,969.00GENMAX GM17000iET 13500W/17000W Generator Tri-Fuel Gas Propane Natural Gas 50A Inverter CO Detect Remote Start$3,119.00
Running watts15,500 W12,000 W13,500 W
Starting watts19,300 W20,000 W17,000 W
FuelGasolineNatural gas or propaneGasoline, propane or natural gas
StartElectric—Remote and electric
Largest outlet50 A—50 A
SafetyCO shutdown sensor—CO shutdown sensor
LinkYou are hereView →View →

Questions and answers

Answered by our team in Wilmington. Can’t find yours? Ask below.

Can I connect this generator to my house?
Only through a transfer switch or an interlock kit installed by a licensed electrician. Never plug a generator into a wall outlet: it can back-feed the utility line and endanger line workers. Connecting safely.
What can it run at the same time?
Use the What it can run planner above: tick your appliances and it checks both the running load and the start-up surge against this generator.
Does it ship with oil?
It depends on the manufacturer. If oil is included it is listed under What’s in the box; otherwise use the grade given in the owner’s manual before the first start.
Can I use it in the rain?
Not uncovered. Run it on a dry surface under an open, canopy-like cover, at least 20 feet from doors, windows and vents, and never in a garage.
Can it be shipped to California?
Some generators are not certified for sale in California (not CARB compliant). If the description says this model is not for sale in California, we cannot ship it to a California address.
How will it be delivered?
Free, by UPS or FedEx Ground to your door, usually within 2–5 business days after it ships. Tracking is emailed as soon as it ships.
What if it arrives damaged?
Photograph it and email us within 48 hours of delivery. We replace or refund damaged items at no cost to you.
Ask a questionWe reply personally by email.