5 Best 9000 Watt Generators For Serious Power

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Strong generators can help you power things like your house or RV but there are also suboptimal models. Discover the best 9000 watt generators.

Best 9000 watt generators top picks

Before going into the top picks I quickly want to note that this is the selection of the best 9000 peak watt generators.

If you want more running watts you want to check out our other top pick lists.

  1. Champion 201067 9000 – Best 9000 watt generator
  2. Predator 9000 – Budget-friendly 9000 watt generator (no inverter)
  3. DuroMax XP9000iH – Best dual fuel 9000 watt generator
  4. GENMAX GM9000iE – Quietest 9000 watt generator
  5. A-iPower SUA9000E (no inverter)

Something else to note is that it is almost never possible to create one perfect ranking for everyone.

It is possible that 9000 watt generators lower on the list are the best for your personal situation.

How we selected our top picks

Our experts spent a lot of time looking at and comparing all the different important factors of the best 9000 watt generators.

Some of the things that were taken into consideration when making our selection include:

  • Run time, power capacity, outlets, portability, THD, 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.

Brand ModelPower
Capacity
Run
Time
Quiet
Operation
THDReliability
Reputation
Fuel
Efficiency
Ease
Of Use
PortabilityPrice
Category
Current
Price
Champion 201067 900086.56.5<3%96.588$$Check Price
Predator 90007.59.55.5<23%797.56.5$Check Price
DuroMax XP9000iH797.5<5%78.586.5$$$$Check Price
GENMAX GM9000iE888.5<5%758.56.5$$$$Check Price
A-iPower SUA9000E7.57.56High777.57$Check Price
9000 watt generators performance on a score of 10 in important categories*

*Compared to similar generators and sometimes based on customer input

5 Best 9000 watt generators reviewed in-depth

People who are in a hurry could find the list of top picks enough to make a decision.

On the flip side, you will likely also find the more in-depth reviews of the best 9000 watt generators below helpful for making a choice.

1. Champion 201067 9000 – Best 9000 watt generator

Our top pick for the best 9000 watt generator is the Champion 201067 9000 thanks to its combination of quality features, clean THD power, positive customers, and reasonable price.

One of the main things that positively stands out in this model compared to other 9000 peak watt generators is the positivity of the customer reviews.

This reliability is especially valuable for a power range that many people use for home backup power but will also help you avoid struggling at night to keep your RV AC going.

While this generator does deserve the top pick spot, you do want to know that it has suboptimal points too.

Pros

  • Champion 201067 9000 offers 9000 starting watts, 7250 running watts, 37.5/50 amps, and 240 volts
  • Noise levels of 72 dBA
  • Run time of 10.5 hours at 25% load
  • Less than 3% THD
  • Electric start
  • CO sensor
  • Four GFCI outlets
  • Weight of 152.2 lb (69 kg)
  • Relatively positive customer reviews
  • 3 years limited residential and 270 days limited commercial warranties
  • A lot of customers
  • Budget-friendly for a 9000 watt inverter generator

Cons

  • Fuel efficiency and run time are not the most impressive

For example, the fuel efficiency and run time are not the most impressive which means you will have to invest just a bit more into fuel and refuel just a bit more often.

The noise level of 72 dBA is about what you can expect at this power capacity but if you want the quietest 9000 watt generator, the Champion 201067 9000 is not for you.

Other features like the electric start and four GFCI outlets are somewhat standard at this power capacity but still nice to have. Especially at this price point.

In short, if you want a 9000 peak watt inverter generator that can run sensitive electrical devices, the Champion 201067 9000 is likely the best option for you.

Brand ModelPower
Capacity
Run
Time
Quiet
Operation
THDReliability
Reputation
Fuel
Efficiency
Ease
Of Use
PortabilityPrice
Category
Current
Price
Champion 201067 900086.56.5<3%96.588$$Check Price
Champion 201067 9000 performance on a score of 10 compared to similar alternatives

2. Predator 9000 – Budget-friendly (no inverter)

Before going into the other details of this next generator it is important to quickly mention the difference between inverters and regular generators.

Inverters make it so you get clean energy that can run sensitive electronics instead. Regular generators can damage devices like this.

A benefit of non-inverter generators like this Predator 9000 is that they are more budget-friendly.

However, if you want to run sensitive electronics in a budget-friendly way, the Predator 8750 or Predator 9500 are likely better choices.

Pros

  • Predator 9000 offers 9000 starting watts, 7250 running watts, 30 amps, and 240 volts
  • Noise levels of 78 dBA
  • Nice run time of 13 hours at 50% load
  • Good fuel efficiency
  • Less than 23% THD
  • Electric start
  • Four GFCI outlets
  • Weight of 195 lb (88.5 kg)
  • Relatively positive customer reviews
  • 90 days limited warranty
  • A lot of customers
  • Budget-friendly

Cons

  • Very short warranty
  • You may need 30+ amps
  • THD is too high for sensitive electronics
  • A few exceptional cases where customers initially got a model that did not work properly
  • Wheel kit sold separately

At the same time, you do want to know that Predator has somewhat of a reputation for giving up some durability to be able to offer a lower price.

In simpler words, the Predator 9000 can be a budget-friendly choice for less intense uses like welding, a camping trip, etc. (if you don’t need inverter power or 30+ amps for these).

On the flip side, if you want a 9000 watt generator to rely on for home backup power or many years of usage, you likely want to invest more in the Champion 9000.

Customers are still positive about the Predator 9000 but by now you likely understand that it is mostly good for certain specific situations and uses.

Brand ModelPower
Capacity
Run
Time
Quiet
Operation
THDReliability
Reputation
Fuel
Efficiency
Ease
Of Use
PortabilityPrice
Category
Current
Price
Predator 90007.59.56.5<23%797.56.5$Check Price
Predator 9000 performance on a score of 10 compared to similar alternatives

3. DuroMax XP9000iH – Best dual fuel 9000 watt generator

Portable generators, even the stronger categories like 9000 watts, often run on gasoline only.

However, there are also dual fuel models like the DuroMax XP9000iH that also work on propane (LPG).

DuroMax XP9000iH

The extra fuel flexibility can be helpful for home backup power or other situations where gasoline is not a convenient option.

If you are interested in a 9000 watt generator for home backup power you do want to keep in mind that some customers had issues with their DuroMax XP9000iH.

Pros

  • DuroMax XP9000iH offers 9000 starting watts, 7600 running watts, 30 amps, and 240 volts (gasoline)
  • Dual fuel so can run on propane (LPG) too
  • Noise levels of 68 dB
  • Nice run time of 20 hours at 25% load
  • Less than 5% THD
  • Electric and remote start
  • Four GFCI outlets
  • CO sensor
  • Weight of 237 lb (107.5 kg)
  • 3 years limited residential and 1 year limited commercial warranties
  • A lot of customers

Cons

  • Pricier than many other 9000 watt generators
  • You may need 30+ amps
  • Some cases of early technical issues
  • A few cases where the generator does not offer the running watts mentioned

These issues include some relatively early wear and tear and cases where the generator is not able to offer up to the 7600 (gasoline) or 7200 (propane) running watts mentioned.

You can make use of your three years limited residential or one year commercial warranties after a camping trip or event but in some situations you really want your generator to function as desired.

These issues deserve a mention but you also want to know that there are a good amount of customers that are happy with their DuroMax XP9000iH too.

If you want a good dual fuel 9000 watt generator, the DuroMax XP9000iH is likely your best bet.

For people who are looking for home backup power, it could also be smart to invest in an additional smaller more reliable generator for the most essential appliances.

Brand ModelPower
Capacity
Run
Time
Quiet
Operation
THDReliability
Reputation
Fuel
Efficiency
Ease
Of Use
PortabilityPrice
Category
Current
Price
DuroMax XP9000iH797.5<5%7886.5$$$$Check Price
DuroMax XP9000iH performance on a score of 10 compared to similar alternatives

4. GENMAX GM9000iE – Quietest 9000 watt generator

At first sight, the GENMAX GM9000iE sounds nice as the top pick for the quietest 9000 watt generator but you do want to keep the downsides of this model in mind.

There are a decent number of reviews where customers mention the GENMAX GM9000iE they got did not function at first or that the machine broke down relatively quickly.

GENMAX GM9000iE

Even when the generator is still within the short one year warranty, it seems to be challenging to get talking with customer support and resolve the issue.

The overall positivity of the customer reviews is still decent but it is fair to say that this 9000 watt generator involves some type of risk.

Pros

  • GENMAX GM9000iE offers 9000 starting watts, 7600 running watts, 31.7/50 amps, and 240 volts
  • Quietest 9000 watt generator with 62 dBA
  • Nice run time of 10 hours at 50% load
  • Less than 5% THD
  • Weight of 233.7 lb (106 kg)
  • Electric and remote start
  • Four GFCI outlets
  • CO sensor
  • Parallel capability
  • 1 year limited warranty

Cons

  • Relatively short warranty
  • Somewhat pricier
  • Decent number of cases where customers got a model that did not work as desired or early wear and tear

If you do get a GENMAX GM9000iE that works as desired, this generator offers a nice amount of clean power for a relatively long run time.

You could even invest in two of these 9000 watt generators and parallel them with the separate kit to get a lot more power.

That being said, unless you really want to avoid any decibels, you will likely prefer one of the more reliable 9000 watt generators on this list.

Especially for a purpose like home backup power.

Brand ModelPower
Capacity
Run
Time
Quiet
Operation
THDReliability
Reputation
Fuel
Efficiency
Ease
Of Use
PortabilityPrice
Category
Current
Price
GENMAX GM9000iE888.5<5%758.56.5$$$$Check Price
GENMAX GM9000iE performance on a score of 10 compared to similar alternatives

5. A-iPower SUA9000E (no inverter)

The A-iPower SUA9000E is mostly on this list because it is one of the few remaining 9000 peak watt generators on the market.

In practice, not many people will actually want to consider this generator.

One of the first reasons for this is that the A-iPower SUA9000E does not have inverter technology.

If you want to run smaller and more sensitive electronics with this generator you will need your own inverter technology.

Additionally, the A-iPower SUA9000E does not have a lot of customers yet.

Pros

  • A-iPower SUA9000E offers 9000 starting watts, 7250 running watts, 30 amps, and 240 volts
  • Noise levels of 76 dBA
  • Run time of 8.5 hours at 50% load
  • Weight of 201.7 lb (91.5 kg)
  • Electric start
  • Two GFCI outlets
  • 2 years limited residential and 1 year limited commercial warranties
  • Budget-friendly

Cons

  • Not a lot of customers yet
  • THD is likely too high for sensitive electronics
  • Above-average noise levels

As you can see from the previous two best 9000 watt generators, brands do not always perfectly deliver on the promises of the product pages.

These issues tend to show up in customer reviews which means the A-iPower SUA9000E involves a certain risk.

Besides these things, the A-iPower SUA9000E is not that great in areas like noise levels and run time either.

In short, you could take a quick look at this generator but you will likely conclude that one of the previous options suits your preferences and situation better.

Even for the relatively small amount of money this 9000 watt generator requires.

Brand ModelPower
Capacity
Run
Time
Quiet
Operation
THDReliability
Reputation
Fuel
Efficiency
Ease
Of Use
PortabilityPrice
Category
Current
Price
A-iPower SUA9000E7.57.56High777.57$Check Price
A-iPower SUA9000E performance on a score of 10 compared to similar alternatives

Our top pick

It is possible that you are still not entirely sure about what 9000 watt generator is the best for your situation.

In cases like that, the Champion 201067 9000 is often a good choice thanks to its solid features, clean inverter power, and reasonable price.

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Author:

Mats is the founder and head editor of Generator Decision. With a combination of critical thinking, tireless research, and a healthy interest in electronics he helps people find the right generators and how to use these. At this point in the journey, Mats has done research on hundreds of portable generators.