Best 3000 Watt Inverter Generators – 5 Models Fully Reviewed

Inverter generators are popular because they offer a host of benefits compared with conventional generators which can be bulky to transport and are loud when running.

On the contrary, inverter generators are generally more energy-efficient and as a result, produce less noise pollution, and cleaner, more consistent energy which can power both large appliances as well as smaller and more sensitive electronics.  

While most inverter generators provide about 1000-2000 watts of power, 3000-watt inverter generators provide that extra boost of power that’s perfect for powering your appliances while traveling in an RV or when camping.

They can also often be linked up with other inverter generators to maximize power output for larger appliances.  

Whether you’re looking for a 3000-watt generator that’s portable, energy-efficient, or ultra-quiet, we’ve compiled a list of the best inverter generators out there, so you don’t have to waste your time - and energy - scouring the internet.

We've taken into account a range of different budgets so there's something for everyone, and have also added a handy buyer’s guide and Frequently Asked Questions section to provide you with all the useful information you need to make an informed decision.  

Short on time? Find our top pick below…


Champion 3400-Watt Dual Fuel RV Ready Portable...

This quality inverter generator from Champion is perfect for supplying power to your RV, tailgating, or providing back-up power to your home in the case of a power-cut or hurricane.

The 59 DBA noise output is owed to this inverter’s ultra-quiet operation, which provides 3,400 starting watts and 3100 running watts of power up to 7.5 hours on a full tank of gas, or 14.5 hrs. on a 20 lb. propane tank.  

This generator is ultra-versatile and can run on gasoline or propane straight out of the box, it’s also got a low oil shut-off sensor for added peace-of-mind, and can be linked up with two other Champion generators to maximize power output.  

As well as being more energy efficient and minimizing noise pollution, this inverter produces clean power to run sensitive electronics on a 120V 30A RV, plus has two 120V 20A household outlets with clean electricity (less than 3% THD) and a 12V DC outlet with dual USB adapter.

It has a convenient 3-position ignition switch to power-up the generator electronically and Champion’s quick-touch panel for easy access to all of your controls. 


  • Perfect for powering the AC in your RV
  • Ultra-quiet operation
  • Versatile - runs on gasoline or propane
  • Oil shut-off sensor
  • Can be linked up with other Champion generators
  • Clean power for sensitive electronics
  • Easy to access panel 


  • Electronic start-up puts more strain on the engine than a manual start-up


Generac 7129 GP3000i 3,000-Watt Gas-Powered...

With 3000 starting watts and 2300 running watts of power, the Generac 7129 delivers over 50% more starting capacity, providing a more energy-efficient generator thanks to the PowerRUSH inverter technology.  

This inverter power also reduces sound emissions and provides optimal performance which is ideal for powering RV air conditioners, power tools, and other motor-driven equipment and appliances.

The PowerDial makes this inverter generator user-friendly and integrates start/stop/run functions into one simple dial for ultimate ease of use. 

It also has the advantage of being lightweight, as, at just 59.5 lbs, it’s easy to carry thanks to the built-in handle for added ease when transporting.

The Truepower technology provides clean power that’s suitable for running sensitive electronics as well as larger appliances, plus the two USB outlets allow you to charge smartphones, tablets, and other electronics.

This generator is also parallel-ready and can be connected to other units to double the GP3000i’s capacity. 


  • 50% more starting capacity
  • Greater energy efficiency thanks to PowerRUSH technology
  • Reduced sound emissions
  • User-friendly operation
  • Lightweight and portable
  • Truepower technology is cleaner and suitable for sensitive electronics
  • Parallel ready to double the power output
  • USB ports for charging smartphones, tablets, and other electronic devices 


  • Not as quiet as others on the market


This inverter generator can run up to 10 hours on a quarter load, with a 3000 Starting Watts capacity and a 2600 Running Watts capacity, making it RV-ready.

The clean and instant power allows you to power appliances and electronics whilst camping or during a power outage, whilst the 30545s engine speed reduces noise, fuel consumption, and emissions, meaning you can save money whilst also lowering your carbon footprint.  

Quiet Power Technology allows you to automatically adjust engine speed to reduce noise, and, at just 58 decibels on a 25% load, this inverter generator is quieter than a typical conversation.

For those times when you need increased power output, the parallel capabilities allow you to connect the generator with two other PowerSmart Series inverter generators to maximize your output.  

Another element that makes this generator stand out - and increases its price tag - is the easy-to-read LCD screen which shows useful information such as the amount of power being used, total unit hours, and maintenance reminders, including oil, air filter, and spark plug changes.

It’s also super easy to move the P3000 to your tailgate, campsite, or around your property with a convenient luggage-style telescoping handle and durable 6" solid wheels.


  • 2600 running watt capabilities
  • 30545s engine speed reduces noise, fuel consumption, and emissions
  • Quieter than a traditional camping generator
  • 1.5-gallon fuel tank for an impressive 10 hours of continuous operation at 25 percent load on a full tank
  • Parallel ready to boost output
  • The LCD screen provides updates and monitors usage
  • Luggage-style handle and wheels 


  • It’s a lot more expensive than others on the market.


Honda is a worldwide-trusted manufacturer, and the EU3000iS is a popular inverter generator that can be used to power a wide range of appliances, including a furnace, fridge, microwave, and more.  

It’s possibly one of the quietest inverters on the market too, running at 49 to 58 dB, making it ideal for use on campsites and for powering RVs. It’s highly fuel-efficient too and can run for up to 20 hours on 3.4 gallons of fuel thanks to Honda’s exclusive Eco-Throttle.  

The advanced inverter technology is not only more energy-efficient which will save you fuel and money in the long run, but it also produces cleaner and more stable power for computers and other sensitive equipment.

The generator is also protected by an “oil alert” feature which will shut the engine off if low-oil is detected.  

The EU3000iS is built to be highly portable, too, and while it weighs 131 pounds, transporting this generator is made easier thanks to the compact design, offset handles for easier lifting, and wheels and a folding handle for true portability. 


  • Ultra-quiet operation, perfect for camping and RVs
  • Long runtime - 20 hours on 3.4 gallons of fuel
  • Eco-throttle for energy efficiency
  • Advanced Inverter technology for sensitive electronics
  • Low-oil shut-off feature
  • Portable thanks to foldable handle and wheels 


  • Despite its compact design, it’s very heavy
  • Honda generators are a bit more expensive than others on the market 


Firman W03081 3300/3000 Watt Recoil Start Gas...

If portability is your priority, the Firman W03081 is one of the most portable inverter generators on the market and is perfect for camping or tailgating.

Weighing just 94.8lbs (43kg), this inverter generator is easy to carry and transport thanks to the Tuff-Stuff handle and wheelset.

It’s also California Emission Certified, whereas many others may not be, and has a National Park-certified decibel rating.  

The 1.8 Gallon tank provides up to 9-hours runtime, while the Max Pro Series 171 cc Firman engine provides consistent and efficient power without overheating.

You also have the option of “Eco Mode” for providing maximum fuel efficiency, while the volt lock automatic voltage regulator ensures clean, consistent power output for more sensitive electronics, with the 100% copper windings equaling less than 3% THD-Clean power. 

The W03081 is user-friendly and simple to use thanks to the reliable recoil system for powering the generator up, and easy to access controls situated on the front and center of the device to increase the ease of starting and using the generator. 


  • Portable and lightweight - wheels and handle for easy transporting
  • Max Pro Series engine provides consistent, efficient power
  • Eco Mode option
  • Cleaner power for sensitive electronics
  • Easy start-up thanks to the recoil system
  • User-friendly controls
  • California Emission Certified
  • National Park certified decibel rating


  • Runtime isn’t the best for the engine.

Best 3000 Watt Inverter Generators Buying Guide

There may be a generator that’s caught your eye, or perhaps you’re still a bit uncertain about which one to go for.

To help you decide which generator best fits your needs, we’ve put together this useful buyer’s guide which will hopefully make your decision easier and more informed.  


Consider where you plan on using your inverter generator.

While most claim to be portable, there are still quite a few differences between different models in terms of weight and transportation features. If you intend to use the generator when camping, the lighter the better.

Look for a generator that has robust handles that are easy to grip, and wheels that roll well even on uneven terrain. 

Noise Level

The inverter technology in these generators are designed to produce less noise pollution, however, there are a few things to consider.

Be sure that the noise level of the generator is compliant with the noise laws in your area, and any National Park laws if you’re camping. 

The National Park Service considers equipment or machinery that exceeds 60 decibels as unreasonable. Basically, you don’t want to run a generator that is louder than a standard conversation.

If using your generator at home, your neighbors will also thank you if you select a quieter generator.  

Energy Efficiency

Along with a decrease in noise pollution, inverter generators are also designed to be more energy-efficient, as they run at a variable speed depending on the load, whereas standard generators run on constant, full-throttle power regardless of the load.

Check the run time of the generator and how much fuel it needs to achieve this in order to analyze its fuel efficiency. The longer the generator can run without you having to refill the tank is an indication of it being more energy-efficient.

Energy-efficient generators are also better for the environment, as they’re using less fuel and as a result, producing fewer emissions.  

Energy Quality

“Clean” energy can mean it's more environmentally friendly, but it also refers to the consistency and reliability of the energy.

For example, “dirty” energy is apparent if you experience flickering or blinking lights when using the generator, breaker tripping, equipment vibrations and noise, excessive heat, or premature failure, and it’s especially important to have clean energy when using more sensitive electronics such as computers and smartphones.  

In terms of emissions, you also want to ensure the generator meets any state rules in your area. For example, if you’re having trouble getting a generator shipped to your home in California, it’s likely to be because that particular generator does not meet the emission standards of the California Air Resources Board (CARB).

CARB-compliant generators have to meet strict air quality standards and they have to be environmentally friendly, so bear this in mind if you’re located in California, or plan on traveling there soon. It’s also worth checking the guidelines in your state before purchasing.  

Start-up Type

A manual start generator is powered up by a recoil system that starts the engine, while an electric start generator will be turned on with the flick of a switch for ultimate convenience.

Manufacturers may use an electric start as a major selling point, though in reality, this isn’t a necessary feature, and an electric option may put more wear on the engine and will be an expensive fix if it breaks.

A manual recoil system is generally more reliable, despite the slight extra effort involved.  


If you’re new to the world of generators, they can seem pretty complicated at first. Look for a generator that has easy-to-access controls that are situated on the front panel for ease of access.

As we said above, electric start-up generators can be ultra-convenient but may be more difficult to fix if they break. It’s also worth noting any additional features which can make maintenance and usage easier and safer, such as a low-oil shut-off feature, which will automatically shut-off the engine in the case of low oil. This also improves the durability of the engine.  

Parallel-ready Capabilities

If you need an extra boost of power, many inverter generators can be linked up with other models within that range to maximize their power output, which can be great for powering larger appliances. 

Cost and Quality

You may have noticed that inverter generators do come at a higher cost than conventional models due to the host of benefits they offer. At the low-end of the scale, you can pay around $600-$800 dollars for a budget 3000-watt inverter generator, however, particular brands or models can cost upwards of $1000, and the price will increase with wattage output.

While the cheaper options can be appealing, bear in mind that they may also be constructed from cheaper parts which could mean you’ll end up having to pay for repairs earlier than with more expensive models from trustworthy manufacturers.

It's also worth checking out the warranty the generator is covered by, and whether you get any additional customer support before you purchase. 

Frequently Asked Questions

What are the advantages of an inverter generator?  

There are many advantages of an inverter generator as opposed to a standard, conventional generator, including:  

  • They are more energy-efficient as they can adapt their power output depending on the connected load. This means that they only use what they need, rather than running full-throttle all of the time. 
  • They produce cleaner and more stable energy which is ideal for running more sensitive electronics, such as computers and smartphones. 
  • Thanks to their inverter technologies, they produce less noise pollution, making them ideal for powering RVs or using when camping, or in other situations where you need to keep noise level low. 
  • They tend to be more portable and compact than conventional generators and usually come with foldable handles and a wheelset to make transportation and lifting easier and more comfortable. 

What is the difference between a generator and an inverter generator?  

The main difference between these two types of generators is that a conventional generator directly produces AC power whereas the inverter generator produces AC power but then converts it to DC power, and then back to AC power, which provides many of the advantages outlined above, such as greater fuel efficiency, a higher quality of power, and lower noise levels.

That said, due to these benefits the two also differ in terms of price. An inverter generator is likely to cost you more than a conventional generator, with the high-end inverter generators costing well into the thousands.