Best Portable Generators for Professional Use 2019

Not a lot can be said about the difference between a generator for home use or for professional use. They are actually pretty similar when it comes to features and specs. However, what draws the line between the two would be their design and durability.

The best professional generators aren’t always the bulkiest, heaviest, loudest or most powerful. Although some of these characteristics are often attributed to generators for professional use.

Basically, what separates a generator for professional use from those for home use would be their rugged design? This would allow the generator to withstand the rigors of operation in a construction site as well as transportation.

Can it easily be hoisted up a crane? Will it endure wear and tear? Is it powerful enough yet clean to provide power for even the most sensitive construction equipment? These are just some of the important questions to ask when buying the best portable generator for professional use.


As we’ve mentioned earlier, there aren’t really so many features to expect from a portable generator for professional use. However, there are essentials that you wouldn’t want to skip out on.

An example of a most important feature of a professional generator must have would be a pure sine wave technology. This makes it possible for a generator to produce minimal total harmonic distortion (THD). Meaning, it is suitable for even sensitive devices.

Safety features such as a low oil shutdown, electric circuit breaker/GFCI, and internal air cooling system are also among the most important. These would help keep the user and the generator engine safe from potential damages and/or dangers during long operations.

What To Look For

We’ve mentioned earlier the features that are essential in a professional generator. But to be more specific, there are some things you must look out for before buying. First off, does it come with a warranty? Or any sort of money guarantee?

Since you will be using the generator at job sites for professional use, you’ve got to make sure that it doesn’t suddenly break down on you. And when it does, you’ve got to be sure that you can get it replaced or repaired.

Another thing to look out for would be again, design and durability. Is the frame or enclosure sturdy enough to withstand working conditions in a job site? Can it be easily hoisted up on a crane? Is the engine durable as well?

Is it powerful enough for all your equipment yet clean and stable for the most sensitive ones? Moreover, does it have safety features to keep you safe from overheating, overloading and the like?

Finally, does it come with a wheel kit? The professional generator is already as bulky and heavy as it is. The most important part is it comes with tools to increase portability.


  • Professional generators tend to have bigger power output and fuel tank capacity. They are also able to operate for long hours due to their available runtime.
  • Durability is added strength of a generator for professional use. Rest assured it can withstand long operations and/or wear and tear.
  • Low maintenance costs.
  • It is also possible to use portable professional generators for general home use or home backup power.


  • Professional generators are not as small, lightweight and portable as portable inverter generators.
  • They are not as quiet as portable inverter generators.
  • They can get a little pricey.


#1 A-iPower 12,000-Watt Gasoline Powered Electric Start Generator

A-iPower Gasoline Powered Electric Start GeneratorFor our top five professional generators, A-iPower 12000 Watt Gasoline-Powered Generator made it to our list. This electric start generator can produce 9000 running watts and 12000 surge/starting watts.

Its keyless one push start button makes it extra convenient to operate. Moreover, it is equipped with important safety features such as GFCI (ground fault circuit interrupter) protected outlets and a protective cord cover.

These two protect the outlets and wiring from whatever working condition the generator is in. As for durability, you are guaranteed from the engine to the frame. It features a tubular steel frame with powder coat finish and a heavy duty all steel fuel tank.

The sturdy steel frame serves as a built-in handle and the 9.5 in never-flat wheels increase portability. With the never-flat wheels’ traction and mobility, rest assured you can move this model even on rough terrain.

Finally, when it comes to power and performance, you get a 7-gallon fuel tank capacity and a total runtime of 9 hours at half load (50%).

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#2 WEN 56200i Super Quiet 2000-Watt Portable Inverter Generator

Super Quiet 2000-Watt Portable Inverter GeneratorSecond, we recommend WEN 56200i Super Quiet Portable Inverter Generator. Although this doesn’t look like the conventional, portable professional type, it is actually powerful. It produces 2000 surge watts and 1600 running watts.

But the best part is, it is super quiet, small, lightweight, compactly designed and highly portable. It weighs only a total of 48 lbs (pounds). Its design and sturdy enclosure/frame make it very ideal to bring along with you in job sites.

It features an Eco Mode, Low Oil Shutdown, Overload Protection, Low Fuel Auto Shutdown and Indication Lights. These features all increase safety and improve fuel economy as the engine automatically adjusts its fuel consumption.

This is especially true for the Eco Mode feature. Its Pure Sine Wave and Parallel Capability also increase power capacity without compromising power quality. Meaning, it’s safe for sensitive devices. Finally, you also get a two-year warranty.

This is an ample time for you to check and see if there are any issues at all or factory defects in your unit. Value for the money and safety net/guarantee? Checked.

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#3 Generac 5735 GP17500E 17500 Running Watts/26250 Starting Watts Electric Start Gas Powered Portable Generator

Starting Watts Electric Start Gas Powered Portable GeneratorAnother generator that made it to our list would be Generac 5735 GP17500E from the GP Series. It produces a total power output of 17500 running watts and 26250 starting/surge watts. This makes it a very powerful model, output-wise.

It features an electric start and has an OHVI engine displacement of 992 cc. You get an hour meter, Low Oil Level Shutdown feature and Idle Control. The low oil level shutdown helps keep your engine from potential damages due to low oil pressure.

The idle control, on the other hand, improves fuel economy as it changes engine speed accordingly depending on power demand. Meanwhile, the 16-gallon fuel tank capacity delivers a total of 10 hours runtime at half load (50%).

Finally, durability is also another plus that you’ll get from Generac 5735. From its hardened 1 1/4″ steel tube cradle to its wheels and integrated lifting eye, you definitely won’t regret buying this generator model from the Generac GP Series.

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#4 Goplus Gas-Powered Inverter Generator Portable

Goplus Gas-Powered Inverter Generator PortableFourth on our list is the Goplus Gas-Powered Portable Inverter Generator. Similar to WEN 56200i, this model is also not your conventional professional generator. It is basically just a portable inverter generator that is powerful enough for professional purposes.

It operates on a four-stroke, single cylinder 53 cc engine. However, what makes this model special are its features. It is equipped with an Oil Alarm System, built-in air cooling system, status lights and a trusty control panel.

The status lights will allow you to monitor your generator’s status and condition. This is a very helpful feature, especially when keeping your generator in top working condition. It also boasts of its ultra-quiet operation, producing only 58 dBA (decibels) when in operation.

This noise level can even be likened to a normal conversation. But the best part is, you get 6 hours runtime at full load (100%), all in this tiny, lightweight model. With a total weight of only 35 lbs, a sturdy built-in handle, an enclosure, it is quite the deal.

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#5 Generac 5734 GP15000E 15000 Running Watts/22500 Starting Watts Electric Start Gas Powered Portable Generator

Electric Start Gas Powered Portable GeneratorLast but not the last, we recommend Generac 5734 GP15000E from the Generac GP Series once again. Similar to the 5735 model, this model once again proves that Generac is a trustworthy brand, even for professional use.

The 5734 model is equipped with a 992cc OHVI engine that incorporates full pressure lubrication with an automotive style oil filter. This makes for a longer engine life. Similar to most, if not all of the generator models from the GP Series, this one is also equipped with a lot of functional features.

It comes with an hour meter, a low oil shutdown feature and an idle control. Most importantly, you get a 16-gallon fuel tank capacity that delivers a total of 10 hours runtime. Even at half load (50%).

The best part is, you are backed by Generac’s two-year limited warranty. So, should you encounter any issues at all, as long as it is within the warranty period and coverage, you have nothing to worry about.

This said, Generac continuously proved that its generators, whatever the type, actually give good value for the money.

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