Best Portable Generator for Construction in 2021

Are you a contractor and need a power generator for your job site, which is portable, small in size, and can meet your energy demand? Well, lucky for you, we’ve rounded up the best portable generator for construction sites which will provide you ample power for your tools, and portable electronic devices.

Top rated best portable generators for construction

Portable GeneratorManufacturerPrice
Pulsar 4000W Portable GeneratorPulsarCheck Price
WEN 56225i Super Quiet 2250WENCheck Price
Champion 3500-Watt RV ReadyYamahaCheck Price

In this post, we’ll be covering the following:

Before selecting a generator for your job site, it is customary to understand your energy requirements. For instance, the energy requirement may vary depending on the number of people working on the job site. If you’re a single person working on the site, then you might not need a large generator. However, if several people are working, then that large generator might be your answer.

With the exponential increase in the use of phones, tablets, and other electronic gimmicks, the power requirement at a job site is not the same as it used to be. The sophisticated electronic devices require electricity with minimal distortion or improved sine wave technology to operate smoothly. Many new generators can power up modern electronics quite efficiently, and some even have a DC USB power outlets to charge your gadgets as well.

Best Portable Generator for Construction Site

In this post, we’ve rounded up the best portable generator for construction sites, which are small in size. The generators in this list are quiet and efficient in powering up tools and devices. Most of them offer parallel connectivity so that multiple units can run in tandem to scale up your energy needs.

If you’re a contractor working in a residential neighborhood and noise is a problem, then you can rely on these powerhouses for working quietly. These generators will allow you to work for long hours with minimal noise complaints.

Furthermore, all of these generators have circuit breaker protection. Except for one generator, all of these are inverter-based, which means it produces a high-quality sine wave electrical power with minimal distortion for powering electronic gadgets.
If you’re in the market for small to medium-sized portable generators, then it is worthwhile to look at this list and weigh the relative merits of each one based on your energy and job site requirements.

Pulsar 4000W Portable Gas-Powered Quiet Inverter Generator

As we all know – good things come in small packages – the same goes for this portable generator.

The Pulsar 4000W Portable Gas-Powered Generator provides 3500 running watts and is quiet while operating. This portable generator offers a lot at a very reasonable price.

The generator can be started by electric or pull start and even remotely as well. Once it is up, you have a range of plugging options to choose from, such as an RV style 120V, 30A for connecting to home power sources or a trailer, two DC power plug with a 5V DC USB plug and a 12V, 8A plug. Furthermore, to utilize all of the power, you’d probably need adapters as there are only two 120V household-style plugs in it.

One of the distinct features of this inverter generator is that it offers parallel connectivity, so you can easily connect two of them in tandem and have 120V of power, which matches the large size generators.

Pulsar 4000W portable generator features
  • 3500Watts of Running PowernLong RuntimenQuiet OperationnMultiple Starting OptionsnMultiple Outlet Optionsn
  • Heavy Weight, Difficult to move around


WEN 56225i Super Quiet 2250 – Watt Inverter Generator

The WEN 56225i is the most compact generator on our list of the best portable generator for construction. This “pocket-powerhouse” has a tiny 79.7 cc four-stroke engine, which outputs an impressive amount of power considering how small and quiet it is. Impressively, it is not noisy at all, with a reported 53 dBA of sound produced while running.

Moreover, the small inverter generator supports sensitive electronics quite efficiently. It offers a sine wave with minimal distortion to charge modern gadgets and tools. Furthermore, there are two 5V DC USB outlets for charging laptops, phones, and tablets, thereby reserving other outlets for other tools and equipment.

The features offered by the WEN 56225i are quite impressive considering its price. It is energy scalable as it provides the parallel connectivity feature. Also, it is less noisy, which makes it ideal for job sites where noise pollution is a major problem.

WEN 56225 Features
  • High QualitynLight WeightnMinimal Distortion ElectricitynUSB Charging OutletnQuiet while running
  • Small Gas Tank


Champion 3500 Watt RV Ready Generator

This RV ready portable generator does a whole lot more than it looks. If you are in search of a small generator for your worksite that can easily power up your tools, and charge batteries of wireless tools, then this generator is a cheap bargain. 

However, it loses the battle against inverter generators is its lack of free-movement capability and old technology. Furthermore, you cannot scale up your power need by connecting multiple generators with it because it lacks parallel connectivity. Also, it does not support USB style plugs for electronic gadgets or any DC power options. 

Optimistically, this generator offers an array of 120V plug offerings. It provides a 120V, 30A twist-lock outlet, and a 120V, 20A RV style outlet. Surprisingly, it only provides a one 120V, 20A household-style outlet. What it means is that the household-style outlet can only make use of half of the running wattage of this generator.

As a contractor, if you’re looking for a portable generator with a dedicated twist-lock or RV style plug-in, then this generator might do the ideal job for you.

Champion 3500W Features
  • Low PricenMultiple 120V Plug OptionsnLow Noise
  • Limited Mobility, No WheelsnNo DC outlet and only one household style outlet


HONDA EU2200i 2200-Watt Super Quiet Gas Power Inverter Generator

The most lightweight and quiet running generator in our list is the Honda EU2200i Generator. This inverter generator is perfect for contractors who work alone or have very little need for portable power.

The generator has a parallel connectivity feature, and therefore, the power requirement can be met by adding auxiliary units. While this is a beneficial feature, but it can be costly as you’d have to buy additional energy equipment.

Furthermore, the outlet options in the aforementioned piece are limited, with only two 120V, 15A household-style outlets. However, it does offer a 12V, 8.3A plug for charging electronics. 

Talking about the price of the generator, it is quite expensive. However, it produces little to no noise during operation, which can be beneficial for communication at a noisy construction site. If money is not an issue, and you’re looking for a quiet power generator, then having two of these in tandem would be an ideal solution for noise problems. Keeping noise level-low can be beneficial for your health and the environment as well.

best portable generator for construction
  • Very QuietnHighly PortablenLightweightnEasy scaling of power due to Parallel Connectivityn
  • Small Gas TanknAdapters may be needed for charging multiple batteries on-site as it offers limited outlets


In conclusion, most of the portable generators offer adequate power with minimum noise. These are ideal for construction sites where noise pollution is of concern. Most of the generators offer parallel connectivity for scaling and USB port for charging electronic gadgets

However, some lack of mobility, while others have small runtimes. There is always a tradeoff, but considering the prices of these generators and the value they offer, they compete neck-to-neck with high priced generators that provide the same functionality.

Choosing a portable generator for your energy needs can be tricky because these things cost a lot. And you do not want to end up buying a power generator that does not meet your energy demand. It is always good to have surplus energy rather than a shortage of it. Therefore, as a recommendation, it is wise to consult a certified professional or read an experienced guide before buying a generator.

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