Generac GP15000E (Discontinued)

The Generac GP15000E (5734) is a powerful open frame generator with a rated wattage of 15,000 W and a starting wattage of 22,500 W. (Read full specs)

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Zoom on the Generac GP15000E

To sum up, the Generac GP15000E is a powerful portable generator tailored for:

• Professionals who want to be able to deliver results, even during a power failure
• Small homeowners in search of a full power backup solution

In the upcoming sections, you'll discover its power characteristics, the array of outlets it presents, its overall portability, and the additional features it possesses.

Power & Run Time

The Generac GP15000E

The Generac GP15000E's core is the 992 cc Generac OHVI 4-stroke engine, which runs on gasoline. With an output of 120/240V, it provides a running wattage of 15,000W and a peak wattage of 22,500W.

This generator is started via a simple and elegant electric starter (battery included).

The GP15000E's fuel tank, with a capacity of 16 gallons, supports uninterrupted operation for around 10 hours at 50% load when fully fueled (fuel consumption at an estimated 1.6 gallons per hour).

Given the GP15000E's high Total Harmonic Distortion (THD) of less than 20%, it is advisable to avoid using it to power sensitive electronic devices.

Outlets

The control panel provides the upcoming 8 AC outlets:

Duplex 120V 20A (5-20R) GFCI

Duplex 120V 20A (5-20R)

Two 120V 30A (L5-30R) receptacles

120/240V 30A (L14-30R) receptacle

120/240V 50A (14-50R) receptacle

Moreover, it boasts 1 DC outlet: there's a 12V 10A receptacle with which you may charge your batteries with ease.

This Generac generator isn't quite RV Ready, but it features an L5-30R receptacle, allowing a simple RV connection through an L5-30P to TT-30R adaptor. Besides, thanks to its twist-lock L14-30R receptacle, the GP15000E is transfer switch ready, facilitating easy hookup to your breaker box to provide backup power for your home during blackouts.

Portability

Measuring L48.5 x W31 x H39.5 in, the Generac GP15000E showcases a classic open frame layout, offering stability and simple maintenance access to components, while facilitating air circulation. The device has been designed for tough environments and demanding outdoor use.

While the generator is considered to be technically 'portable' (in the sense that you can move it), manually lifting and transporting it may be challenging, due to its high weight of 363 lbs. However, the constrained maneuverability is addressed with the assistance of its wheel kit (⌀12.3") and its handle, allowing for easy shifting once the generator is placed on the ground.

A lift hook, which is on the top of the frame, serves as an extra safety feature for the transport, unloading and loading of the device.

Features

The GP15000E's control panel

Designed with a digital data center, the control panel of the GP15000E grants you access to crucial data on the lifetime run hours, ensuring practical monitoring of its status and activity.

The inclusion of a built-in fuel gauge in the generator streamlines gas level checks for quick and convenient assessments.

From a security standpoint, the product offers an automatic low oil shut-off and an overload protection (circuit breaker), allowing you to use it with a peace of mind.

Besides the classic documentation and an owner's manual (opens in a new tab) to get you promptly started, the Generac GP15000E also comes with some accessories: funnel and tool kit are included.

Product Video

The Generac GP15000E versus other generators

The following charts are provided to give you an idea of how some of the key specs of the Generac GP15000E compare to generators of similar power (between 14000 and 22000 W).

• Weight-wise, the Generac GP15000E has only 363 lbs, which renders it one of the lighter generators which produce 14000 to 22000 rated watts. if you wish to prioritize weight, the Westinghouse WGen14500TFc is one of the top contenders in its power category, weighing only 348.3 pounds.
• The GP15000E's runtime of around 10 hours at a 50% load on a full tank positions it within the average autonomy range compared to other generators with similar power. If run time is one of your main concerns, the Westinghouse WGen20000 could be worth looking at. It boasts one of the highest run times among units of comparable power, lasting around 11 hours.
• Though run time is a significant parameter, it's closely tied to the generator's fuel tank size. To get a comprehensive understanding, fuel efficiency must also be taken into account. Compared to similar devices, this generator is less fuel-efficient than most: it burns around 1.6 gallons of gasoline per hour at a 50% load. If you wish to get a unit of similar power, but with one of the best fuel efficiency, you could consider the Westinghouse WGen14500DFc, which has an impressively low fuel consumption of 0.95 GPH.

The bottom line

About Generac

Generac Power Systems is an American based generator and power equipment manufacturer, founded in 1959. As its name suggests, the main focus of Generac are power generators, and other related electric equipment, such as switches, paralleling systems and small engines. The company has several manufacturing facilities based in the US, thus, their products are engineered and built in the USA. However, their components can be a mix of domestic and foreign parts.

Warranty Information

The Generac GP15000E is covered under a warranty for up to 2 years. This warranty may be limited and may not cover all parts of the generator.
For more information about the warranty of Generac generators, please consult Generac's warranty policies (opens in a new tab). Alternatively, you can also contact their Customer Support: 1-888-GENERAC (888-436-3722).

Questions & Answers