5 Best Generators For Construction Power

Discover the best generators for construction so that you can reliably power your tools and finish the project successfully.

Best generators for construction top picks

It is worth noting that I stick to portable construction generators for this list of top picks.

These can offer nice amounts of power already but really big construction sites could need towable or even bigger generators.

1. Westinghouse wGen6000 – Best medium construction generator (7500 peak watts)
2. Westinghouse wGen9500 – Best large construction generator (12500 peak watts)
3. Champion 100519 – Best medium inverter construction generator (6250 peak watts)
4. Westinghouse wGen12000 – Best very large construction generator (15000 peak watts, low THD)
5. Champion 201169 – Best tri fuel construction generator (8125 peak watts)

If you are completely unsure about how many watts you need, the article on what size generator you need for construction can be helpful.

How we selected our top picks

Some details that are helpful when it comes to construction site generators are GFCI outlets, long run time, a lot of power, durability, CO sensors, and covered outlets.

At the same time, I considered some of the following aspects for the list of top picks too:

• Fuel efficiency, outlets, portability, noise levels, etc.
• User reviews
• Anecdotal reviews from experts
• Price
• Brand trustability and reputation
• The performance categories below

If a pick seems interesting click it to see the online prices.

*Compared to similar generators and sometimes based on customer input

5 Best generators for construction sites reviewed

People who are more experienced with portable generators could choose with just the list of top picks and the performance table.

That being said, you will likely find it easier to decide between these construction generators after checking out the reviews below.

1. Westinghouse wGen6000 – Best medium construction generator

Our top pick for the best medium construction site generator is the Westinghouse wGen6000 thanks to its nice amount of power, solid features, good reliability, and reasonable price.

First of all, the 7500 peak watts, 6000 running watts, 30 amps, and 240 volts allow you to power nice amounts of construction equipment.

And even if this is not enough power, you can consider the Westinghouse wGen7500 which is the 9500 peak watt version.

Alternatives aside the Westinghouse WGen6000 positively stands out in its great run time of 13 hours at 50% load too.

This makes it so you can continue making progress in your construction project without frequent interruptions for refueling sessions.

Additionally, similar to the other models on this list, the Westinghouse WGen6000 has GFCI outlets to add a layer of safety.

This can come in handy when working with big tools that can easily cause issues when used suboptimally.

You do want to know that there are a few cases where customers have issues with the electric start battery of the Westinghouse WGen6000.

That being said, similar to the somewhat louder noise levels and high THD power, any electric start issues should not be the end of the project with the recoil start available.

You also still have the one year limited commercial warranty to fall back on.

So if the 7500 peak watts are enough for your construction site, the Westinghouse WGen6000 is likely the best choice.

2. Westinghouse wGen9500 – Best large construction generator

The previous generator already offered nice amounts of watts but for slightly larger projects, the Westinghouse wGen9500 can be the better choice.

Keep in mind that “larger” is relative.

Ideally, you would double (or triple) check the power needs of your construction sites to figure out what level of large portable generators is right for you.

In any case, the 50 amp capacity of the Westinghouse wGen9500 can come in handy for certain bigger pieces of equipment.

You may also like to hear that there is a Westinghouse wGen9500 version with a CO sensor and a dual fuel Westinghouse wGen9500DF too.

The CO sensor turns off the generator when the carbon monoxide levels around it are too high.

This can help you avoid accidents on a construction site day without wind.

Another somewhat more unique addition to the Westinghouse WGen9500 is the remote start.

This allows you and your people to save time by turning the generator on and off from a distance (after the initial setup).

In turn, there is more time and attention left for making progress on the construction project.

You may also like to hear the Westinghouse WGen9500 is relatively budget-friendly for all the power, reliability, and solid features it offers.

3. Champion 100519 6250 – Best medium inverter

Non-inverter generators can do the job for many types of power tools but if your construction site has laptops, printers, and other electronics, you want clean low THD power.

If you don’t want to go through the effort of setting up your own inverter, a generator like the Champion 100519 6250 with this built-in can be the right choice.

When it comes to this category of inverter construction generators, the Champion 100519 6250 stands out in its reliability, mobility, and reasonable price.

It is worth briefly mentioning that the Champion 201067 9000 can be a good alternative if you need more clean inverter power for your job site.

One of the benefits of sticking to a smaller model like the Champion 100519 6250 is the lighter weight of 121 pounds (54.9 kg).

This makes it easier to roll out the generator in and out of position at the start and end of the work day.

On the flip side, it is possible that you will need to refuel the Champion 100519 6250 throughout the construction work day every once in a while.

The 13.5 hours at 25% may just not be enough to last from the start to the end.

That being said, at this power level, it will be hard to find inverter construction generators that are better than the Champion 100519 6250.

4. Westinghouse wGen12000 – Best very large

Bigger construction sites could need even larger portable generators but it is fair to say that the Westinghouse wGen12000 offers a lot of power with its 15000 peak watts.

Something else that positively stands out is that the Westinghouse wGen12000 produces low THD power even though it is not technically an inverter generator.

In simpler words, this relatively large portable generator for construction sites is suited for running sensitive electronics like computers, microwaves, and printers too.

Additionally, even with a big generator like this, customers tend to be very positive in their reviews.

These positive reviews imply that the Westinghouse wGen12000 should be reliable enough for multiple construction projects.

Especially considering the GFCI outlets and the option to choose the version with a CO sensor for extra safety.

The 11 hours at 50% load with this much power makes things more convenient too.

Depending on the power needs of your construction site, the Westinghouse wGen12000 may even last throughout the day on a single full tank of gasoline.

Additionally, you can consider the Westinghouse wGen12000DF and a big propane tank to avoid refueling sessions too.

In short, if the power capacity of the Westinghouse wGen12000 or its variations align with your construction site needs, one of these is likely the best generator for you.

5. Champion 201169 8125 – Best tri fuel construction generator

A few of the generators above are available in dual fuel versions which can be helpful if propane is a more convenient fuel type for your construction site.

However, for certain locations and projects, a tri fuel generator like the Champion 201169 8125 that can run on natural gas too can be even better.

You do want to keep in mind that tri fuel generators offer fewer watts when running on natural gas.

In turn, the Champion 100416 (10000 peak watts) and Champion 201176 (9000 peak watts, inverter) can be better for bigger and/or low THD power needs.

One thing to note is that there are a few very exceptional cases where the first Champion 201169 8125 customers got had issues.

That being said, in combination with the very positive overall reviews and 270 days commercial warranty, this is still a generator with solid quality.

You also get some of the by now more standard GFCI outlets and a CO sensor to keep your construction site at least somewhat safer.

So if you regularly have construction sites where natural gas is the most convenient fuel type, the Champion 201169 8125 or one of the alternatives mentioned can be the best generators.

Related posts:

• 5 Best 240 Volt Generators For More Power
• 7 Best Portable Generators For Home Backup

Our top pick

If you are still unsure about what generator would be the best for you and you have a medium-sized job site, the Westinghouse wGen6000 is generally a good choice.

Additionally, the Westinghouse wGen9500 can be even better with its 12500 peak watts for somewhat larger job sites.