A joyful camping trip or a great RV vacation could be a wonderful experience if you have a quiet portable generator with you. By this trips and vacations, you can explore the nature, and can enjoy with the people, but you might be left without few comfortable things you are used to having virtually unlimited access to at your home – electricity for instance.
Though some of the people might enjoy spending a few of their vacation days without electricity, many others can’t even imagine spending a mere one day without the electricity. Fortunately, there are a plethora of best quiet running generators you can take with you pretty much anywhere. The best camping generators are the quietest ones, since you may not have the patience or cables to set up and to refill a generator fifty feet away. Affordability is one of the must things that campers require when they couldn’t totally stand roughing it, mainly if they want the option of taking two or more portable generators to run an AC on vacation and charge your mobile phone. For campers, it is also very important to have the quietest inverter generator that is easy to pack and transport.
- 1 Our Top Picks!
- 2 Yamaha EF2000iSv2 – The Quietest!
- 3 Honda EU3000iS – The Ultra Quiet Generator!
- 4 WEN 56200i
- 5 Westinghouse iGen2500
- 6 Generac IQ2000
- 7 Atima AY2000i
- 8 Briggs & Stratton P2200
- 9 Energizer EV3200
- 10 Energizer eZV2200
- 11 Champion Power Equipment 7536I Inverter Generator
- 12 Frequently Asked Questions
- 12.1 What is the absolute quietest portable generator on the market?
- 12.2 How much wattage do I really need?
- 12.3 Which “quiet” Inverter offers the most power?
- 12.4 Can I use a muffler to further reduce noise?
- 12.5 Which Quiet Generator is best for RV or Camping?
- 12.6 How is the sound produced measured?
- 12.7 How long should a generator last?
- 13 STEPS TO MAKE YOUR GENERATOR MORE QUIET
- 14 Characteristics of Super Quiet Generators
Our Top Picks!
Yamaha EF2000iSv2 – The Quietest!
Yamaha EF2000iSv2 is a versatile, fuel-efficient, and lightweight best quietest portable generator featuring the latest controller with great programming that can power a wide range of equipment in the field. The noise block sound reduction system present on this generator allows it to operate at very quiet levels. It has 50 state legal – meets EPA & CARB emission regulations. Twin technology used in this generator lets the two Yamaha generator units to get fixed in parallel connection to give up to approx. 35-40 amps of power and to run larger appliances in a travel trailer, hunting cabin or around the house during a power outage. The gasoline petcock of this generator lets you shut off the gas to run the carb dry for storage and prevents stale gas problems. Best of all, the auto-decompression system of this generator reduces compression for easier starting.
Engineered and designed to bring quiet, durable power to the outdoors, the Yamaha generator 2000 watts of power and increased versatility can easily handle higher load applications like heaters, microwaves, hair dryers, tire warmers, and much more. If in a generator, your priority is power, then this Yamaha inverter generator is also fitted with the brand’s sophisticated technologically muffler with a spark arrestor. It has an OHV engine that is reliable, efficient, reliable and good heat dissipation.
- Easily detachable side panels for easier serviceability
- Comfortable grip handle makes for easy portability and storage
- Super-quiet muffler Lightweight for easy transport
- Compact 2.2 Cu.ft. size is easy to store and transport
- Oil Watch Warning system prevents engine damage caused by low oil
- Fuel gauge see fuel level at-a-glance
- Centralized controls easy access to controls.
- More expensive than other options
Honda EU3000iS – The Ultra Quiet Generator!
Honda EU3000is portable generator is an ultra-quiet generator with 2800W. Although you will see 2600 watts for output in some listings, it is rated at 2800 watts. This generator comes with an electric start and is CARB compliant. Honda company is well known for its motorcycles and automobiles, and now it also manufactures engines, power generators as well as lawn equipment. This Honda-EU3000iS portable generator is one of the generators from their line of generators. This Inverter-generator makes use of a microchip technology to provide clean electricity much like available from the utility grid. This will let you run sensitive computer-controlled equipment without any trouble.
The Honda EU3000iS generator has both an electric start as well as a manual starting system. It consists of a 12-volt DC outlet to charge your car batteries. This generator can surge up to 3,000 watts which gives it enough power to start most RV ACS. It runs up to 20 hours at 25% load with a full tank of fuel. With four cycle 196cc Honda engine, It also has a convenience light to make it easy for operating in the dark. Best of all, It consists of front folding, and rear lifting handles to make the generator easy for moving. The oil alert warning system present in the generator shuts the engine if the oil level is low. It also consists of an Eco-throttle feature that would allow the engine to adjust to the requirements of the loads.
- Weather resistant with its plastic outer shell.
- 3-year warranty on parts and labour. Consists a 12-volt DC outlet for charging batteries.
- A clean power that allows you to run sensitive equipment without worry.
- Consists an electric start and a manual recoil starts as well.
- An 86, or any higher octane is certified to work with the engine.
- Runs better with premium gasoline vs the regular.
- Difficult to add oil since it needs a narrow funnel with a curved spout.
The WEN 56200i is one of the best quiet running generators which mimics a pure sine wave and will limit the harmonic distortion to less than 0.5% when there is no load at all and to less than 1.5% at full capacity, making it ideal to run your delicate electronic devices such as mobile phones, laptops, tablets and computers. This WEN 56200i 2000-Watt Portable Inverter Generator is a very silent generator. The 1-gallon tank of this generator allows nearly five hours of runtime at full capacity and 6 hours at 50% load. The generator consists of overload protection to safeguard the generator as well as the electronics from any damage. The generator also comes with a single USB port and also other outlets to connect your electronic devices. This generator is of very less weight, weighing just around 48 lbs and is extremely portable too. The generator produces clean energy that does not have any fluctuations in voltage. The best part of this WEN 56200i generator is that it does not create any noise like other regular generators that makes when in operation. This quiet working makes the generator ideal for outdoor use when you are camping or hunting, etc. This portable generator is equipped with a low-oil indicator and automatic shutdown when the unit is low on fuel.
- Excellent customer support.
- Portable and Less weight, convenient to carry wherever you go.
- Fuel efficient.
- Can be used for the outdoor purposes like camping, tailgating and at construction sites, etc.
- Super-quiet operation.
- Provides clean and safe energy without any fluctuations that can harm your delicate electronic devices such as laptops, mobile phones, etc.
- Pouring oil into the generator quite difficult.
If you are seeking for an ultra-quiet generator, then the Westinghouse WGen2000 would be your best bet. This generator provides a great deal of power, has a functional and sturdy design and an incredibly long running time. The vital selling point of this generator model is the price. This portable generator weighs in at just 90 pounds, definitely not the lightest in the category, but well below the average of 130 pounds.
The generator has the longest run time of any portable generators available at this cost. It is somewhat sparse on the outlet available. However, it is enough if you don’t need to run large appliances or RVs. Anything that you can normally plug into the walls of your home can be powered by this model but don’t expect to run an RV or refrigerator with it. Providing 1000 watts of power with a unit weight of nearly thirty-five pounds, the gasoline-power 4-stroke engine of this generator will run for nearly 10 hours on a full tank at a 25% load.
The most impressive thing about this portable generator is how long it lasts. You could at least expect 20 hours of continuous run time on a single tank of fuel. The control panel of this portable generator has only four household outlets, no car-charger style 12V outlets or industrial locking outlets, which makes it good to power some power tools, televisions and computers.
- Large fuel tank.
- 20 hour run time.
- Affordable $300 price tag.
- Relatively low power output.
Generac IQ2000 is the quietest inverter generator available in the market. The quietest operation would take place in the economy mode and when running a lighter load. The noise level of the generator will increase when operating at a higher load or if using the turbo mode. There are currently a few quieter options available, but the Generac IQ2000 generator still holds up as one of the silent portable generators out there.
This Generac generator is simple to use, and you can power it up with a heavy duty pull cord. This simple power dial present lets you start, run, and stop the generator. This button also lets you choose from the turbo, standard, and economy modes. Turbo mode is the noisiest mode option but it lets you operate with full power. The Economy mode is best for smaller loads, and it is best because it takes only a little gas and will result in a much quieter operation. For the rest of the operations, there is the middle ground standard mode operation. A great aspect of this generator is that it provides the user with a lot of helpful information. At the front of the generator, there are several displays that present information in a large and easy to understand format. A wattage meter of this generator shows you the percentage of load that you are currently operating. There is a fuel meter to help you keep an eye on how much gas you have left in the tank. Another meter shows the total estimated runtime based on the current load.
- Made in the USA with 3-years Warranty
- One of the most silent portable Inverters
- Very User-friendly
- Real-time Displays
- Not Ideal for High Altitude Use
Atima AY2000i is the quietest generator for home and also for camping with high performance and low maintenance requirements. The accessories that come with this generator include Info card, Sparkplug sleeve, Empty oil bottle, Toolkits for maintenance, Cable for 12V battery charging and Manual book. Low oil indicator present in this generator avoids damage to components. It offers quiet operation at 52 dB, so you don’t disturb people around you. It consists of advanced inverter technology, less than 0.3% total harmonic distortion and charge cell phone with a built-in USB port. The fuel tank capacity of this generator is one gallon, running time 10 hours at 1/4 load. Parallel-ready outlets of this generator allow you to connect any model in Atima generators family, reducing your budget to increase power economically. Aluminium alloyed body and ergonomic design make it robust and easy to carry. It also provides constant electricity that sensitive electronics need to operate correctly. The Atima AY2000i generator can be used to power standard microwave oven, hairdryer, garage door opener, slow cooker, two-way radio, TV/DVD, RV, AC, incandescent lights, portable fan, coffee maker, computer, and much more. Weighing 48 pounds, you don’t have to spend too much hassle lugging it around, especially with the smart, built-in handle. Best of all, the generator has less than 0.3% total harmonic distortion, while running time 10 hours at 25% load using a 1-gallon engine.
- Ergonomic design for the comfort of use
- Packs a Yamaha engine within the Atima casing
- Little actual customer feedback for an extensive performance outtake
Briggs & Stratton P2200
The Briggs Stratton P2200 portable inverter generator is a quiet electric generator that proves that strong performance can come in a small package. This generator is of gasoline power which means that fueling this generator won’t be a problem, as fuel can easily be purchased from any filling station. Best of all, fuel can also be stored for extended periods of time when a fuel stabiliser is used. Its 1700W will be sufficient enough for most lightweight generator tasks, and it is plenty for running essential appliances or lighting during a blackout or in a disaster scenario. The engine of this generator is just 111cc in size displacement. However, it still allows it to generate 1700 running watts, or up to 2200 peak starting watts. Though this generator looks like a battery pack or a small recharging appliance, it includes a complete gasoline engine inside of the plastic shroud. Best of all, this generator can easily be carried and moved by hand, and at 54.6lbs, this portable inverter generator that you can purchase today. If you have been looking for something that is compact yet still a serious option for backup power, then make sure you read this full generator review. This generator doesn’t have any metal components, but the payoff you get in reduced weight will be it for most buyers. This Briggs Stratton P2200 30651 has a small footprint and a lightweight plastic design. The motor is completely surrounded by the housing, which helps the generator to look much more modern.
- Quiet operation
- Lightweight and portable
- Fuel efficient with auto-idle control feature
- Long running time
- Clean and stable power for sensitive devices
- Long-term reliability issues
- Complicated to start as it needs at least three pulls on the recoil
- Non-CARB compliant
- 1,700-watts might be insufficient for most uses
The Energizer EV3200 is a quiet electric generator that provides class-leading inverter dual-wave technology which means that your sensitive electronics will be safe. With size: 22.8 x 16.7 x 17.5 inches, the other specifications include Noise Level: 50-59 decibels, Weight: 96 pounds, Runtime: 11.5 Hrs (25% load), 4.2 Hrs (100% load), Outlets:2x 120V 20A socket; 1x 12V 5A DC socket; 1x 120V 23.3A twist lock socket, Parallel Port, Oil Capacity: 400 ml / SAE Synthetic 5W-30, Fuel/Capacity: 7.4 L / 91 Unleaded Gasoline, Start Method: Recoil, Motor: 208cc 7HP and Wattage: 2800W Peak 3200W Continuous. It is the lightweight generator in its class and has a suitcase-style handle, and it’s very easy to carry.
Best of all, Energizer comes with an impressive 3-year limited warranty. Energizer batteries of this generator are the ones that just keep going on, and that is true for many other Energizer products as well. This generator was really built to last long as its construction is very solid. You can expect this generator to be a very durable even if it gets a lot of use in different environments. In this generator, if you engage the Eco mode by flipping the switch, the engine will automatically throttle to meet the on-demand load. By this generator, you can charge your cell phone or laptop without worrying about a power surge causing damage. The energy is clean with both the voltage and current being controlled and a true sine wave output. With this twist-lock cable, this generator becomes parallel-ready, and it offers a unique and high-value feature in its parallel capabilities. Best of all, this generator saves gas and also extends the life of the engine.
- Ease of use
- Good warranty
- Very stable Inverter
- Cheaper Build than higher priced options
Energizer eZV2200, a very quiet generator exemplifies a big step forward for Energizer as they expand their current lineup of generators. Energizer eZV2800 is one of the best inverter generators for the money, providing enough power to handle a broad range of applications. With 2 years limited warranty, this generator consists of 2800W Starting / 2600W running power and a 150cc / 5.3 hp motor. Telescopic handle packs of this portable generator make it easy to store and easy to transport while travelling. With weight 70.5 lbs., the generator also consists durable metal frame with heavy duty abs components and sturdy rubber wheels for all weather and terrain.
This generator handle length and height keeps it at a safe angle while transporting. The five-step installation will have your portable inverter generator up and running in less than five minutes. It consists of two 120-Volt 20A sockets, 12-Volt 21.6A RV socket, USB charging port for portable electronics and 12V battery charging socket. It is one of the great portable generators that are well suited for travelling, hunting, RV camping and emergency power, without the need for additional adapters. Best of all, it is of easy maintenance and is designed from scratch, so the internal generator components are accessible.
It consists of automatic low oil shutdown engine protection and battery charging cable. At a light electrical load of approx 350 watts and at 25% of max capacity, the runtime of this generator 11.7 hours.
It is very quiet with 64 dBA.
- Huge fuel capacity
- Smart Power feature for safeguarding sensitive electronics
- Weather resistant (typical outdoor conditions)
- No option of connecting two eZV2200 together
Champion Power Equipment 7536I Inverter Generator
The Champion Power Equipment 73536i inverter generator is a quietest inverter generator. If you have heard a conventional generator in action, you will know they’re loud enough to damage your hearing, but this Champion Power Equipment 73536i is much quieter. Sometimes you can’t even hear them if you’re standing far enough away. This generator is unique in many ways, but the most obvious feature of this inverter generator is that it is stackable, so when you run two in parallel they are easy to organise. This generator is also highly recommended it for its reliable performance and innovativeness that you can expect for a generator during the times of emergency. Best of all, this portable generator proves that a high-quality inverter generator does not have to be expensive.
The main thing that makes this generator as a better choice than the other cheap inverter generators is its easy-to-pull recoil start. In winter time also, you will not find it complicated to jumpstart the motor. The other safety features worth knowing are the low oil shut-off sensor and the overload protection. Unlike other generators, its pretty small size in no way will act as a barrier to its capability to offer the necessary power that your home electronics need. It is only 19 inches wide and weighs 50 lbs. Yet, inside is the 80cc OHV engine that gives a maximum of 2,000 watts at peak level. This generator, when turned on, its motor will automatically adjust to consuming fuel that is only necessary for the load. With it, you can save energy as well as fuel.
- Spark arrestor
- DC charging cable included
- Cube shaped construction for stability in transport
- Expandable connectivity for hooking to another unit
- Dc capability to charge 12V
- Quiet operation – 51 to 61 dBA
- CARB compliant
- Fuel efficient – with the economy mode switch
- Some disassembly required for maintenance
- No DC breaker
- No oil drain plug – must tip the unit no gas drain – must syphon out
Frequently Asked Questions
What is the absolute quietest portable generator on the market?
We know how complicated it could be to shop for a quiet yet best portable generator. So it is always best to go through quiet generator reviews and to find the best models that cut the noise back to a minimum without cutting corners on quality or performance. At present, the best and quietest portable generator available on the market is the WEN 56125i generator. It has a noise rating of 51 dB when operated at a 1/4-load. Even Yamaha EF2000iSv2 is the best one, with a noise rating of 51.5 dB. Apart from these two, there are still many absolute quietest portable generators available on the market, and Honda EU2000I is one of the best affordable choices you can pick. It consists of a 2000W starting output and 1600W running output for kick-starting larger appliances like an A/C. This generator is smarter and quieter alternative to the best generator Powerhorse for smaller applications. This generator is the best choice for people who need something small, and want the absolute best quality and quietness. It is durable, efficient, reliable and this is no exception. Best of all, it is smaller, lighter, and easier to carry around with you.
How much wattage do I really need?
One of the great ways to enhance your power with quiet portable generators is by hooking two generators together. Best of all, it will double your available wattage. Generally, most of the quiet generators are parallel-capable and are ready to do this. How much wattage exactly you require depends totally on what you are going to be using the generator for. Some of the portable generators like Honda generator consists of a calculator to help you determine what wattage you should be looking for in your portable generator. To know exactly how much wattage you need in a generator, it is best to add together the wattage of the things you expect to simultaneously plug into the generator as everything you plug in will require a different number of running watts. For example, A microwave oven, need around 750 watts, while a cell phone charger, only needs about ten running watts.
What is a cheap, affordable option that isn’t too noisy?
The Westinghouse iGen1200 portable generator is one of the cheapest generators that stays relatively quiet. Though this is not the quietest portable generator available in the market for the price point, it isn’t overly noisy. On the flip side, this generator doesn’t offer the most power, though. So, if you need a bit more power, the Energizer eZV2200 portable generator is also pretty affordable and relatively quiet. Generally, there is a wrong perception among many people that cheap generators don’t usually come with a long extended warranty when you compare them to pricier models. But Westinghouse iGen1200 portable generator is cheap yet the best one. Buying a generator from larger companies will also have more service centres nationwide, which means you won’t have to wait too long for repairs.
Which “quiet” Inverter offers the most power?
Among many portable silent generators, the Champion digital hybrid portable generator offers the most power by far, with a rated wattage of 3500 watts. This quietest inverter generator also offers the longest runtime. If you plan to operate your generator at a 100% load consistently, and especially if you plan to run two generators in parallel, then with this generator just be prepared for quite a bit of noise. Though this generator is definitely louder than other options, it is still quieter than typical garbage disposal. If you wish to power several things at once and if you need a consistently large amount of power, then this Champion portable generator is the best option for you. This generator is also parallel-ready, so you could potentially double that power. Best of all, at a 1/4-load it has a noise rating of 64 decibels.
Can I use a muffler to further reduce noise?
Using a muffler makes a huge reduction in noise on vehicles, but a big doubt that arises for many is that whether it can be used elsewhere? The answer for it would be yes as adding a muffler to your portable generator can possibly help reduce the noise level. There are many mufflers available online for purchase, but results from those different generators are varied. The muffler in the portable generator is what makes it so quiet. However, using it might not end up totally reducing your sound all that much. Another do it yourself option to dampen the sound is to build an enclosure around your generator. Most of the portable generators recognise the value of a muffler and actually build it right into the design. Yamaha EF2000iSv2 is one of the best portable generators with muffler.
Which Quiet Generator is best for RV or Camping?
If you want to buy a best quiet portable generator for use in an RV, there are many important factors to consider. The main things are, the generator needs to be quiet, it needs to be powerful enough, and it should not disturb others who might be parked or camping nearby. For camping or RV in a campground, where you will be close to other campers, you have to probably want to use one of the very quietest portable generators like the Yamaha EF2000iSv2 or the WEN 56125i. Ideally, the portable generator will be RV-compliant, meaning it has a 120V 30A RV outlet built right in for all these reasons, the Champion Power Equipment 100302 is the best option, though it is a bit louder.
How is the sound produced measured?
Generally, the quietness of the portable generators is tested and measured at around approx 15 to 20 feet away. The sound produced from the generator was measured with a tool known as a Sound level meter, and a decibel (dB) is a unit used to measures the intensity of a sound. As we know, this DB is logarithmic which means that it goes up in powers of ten. For example, if a jump takes from 50 dB to 60 dB, then it means a sound is ten times as loud. And because of this reason about how the intensity of the sound is measured, moving up at least few of the numbers on the decibel-scale means a great significant jump in sound. So, if keeping your generator noise to an absolute minimum is an important thing for you, you have to pay deep attention to the decibel ratings for any generator you are considering.
How long should a generator last?
As you spend your hard-earned bucks on a generator, it can and should last for a quite long time. However, its durability mainly depends on you as the key to longevity is maintenance. Just like your car or any other valuable things, you have to take more concentration on your portable generator maintenance also. It is very important to perform regular maintenance checks as generator needs that kind of attention to work smooth for many days. It is also very vital to read the manual given along with the generator and to follow the maintenance instructions mentioned in it carefully. The things to follow for sure includes changing the oil and filters. Many of the most critical problems people have with portable generators are caused by not taking proper care of them. So along with initial cost investment, you should also invest energy and attention over time. When you do it, you will be able to count on consistent performance for a very long time.
STEPS TO MAKE YOUR GENERATOR MORE QUIET
Portable Generators, mainly those that have higher RPMs, generally tend to be very noisy. Sometimes it is recommended to have a generator with an idle control option as this technology reduces engine speed when loads are not being applied, which in turn decreases sound levels and conserves fuel.
However, the generator’s engine speed will kick up and create more noise when appliances are in use.
So here are a few steps that you can follow to make your generator quieter.
For most of the large installations, the attenuators are the best effective way of reducing noise transmission. The attenuator is a device that lets large amounts of air to pass through it but will block noise transmission. A little bit of air is forced between splitters that absorbs the sound and decreases the wavelength. Using this attenuation system could reduce noise to anything between 35 dBA– 90 dBA at 1m. The larger the attenuator, the more will be the noise reduction.
Anti-vibration mounts are another way to reduce noise at the source. Placing anti-vibration mounts underneath the generator will isolate the vibrations and will reduce the transmission of noise. There are plenty of various options – dampers, spring mounts and rubber mounts– and your choice would totally depend on the dB level you want to get. Also, flexible fitting joints between the generator,
isolating vibrations at the generator base, and any connecting systems will decrease the transmission of noise to surrounding structures.
Keeping acoustic barriers to reflect the sound waves would probably restrict the noise that is just beyond that barrier. So to decrease noise and reverberation within the generator room, it is better to insulate the space to absorb sound. This method involves lining hard surfaces with ceiling tiles, acoustic wall panels or any sound-absorbing materials. For most of the industrial applications, the wall panels prepared from perforated steel are the better choice.
Temporary Acoustic Fencing
If just an enclosure can’t do the above-mentioned trick, then use acoustic fencing to create an additional barrier. For construction projects, outdoor events and utility networks, this temporary acoustic fencing is an effective and fast solution. For larger installations, acoustic screens can be of specifically made and permanently installed.
The best and easy way to reduce the noise from a portable generator and to make it quietest inverter generator is to increase the distance between yourself or your community and the noise source. If you place the generator further away, then the energy is spread over a greater distance and will have less acoustic intensity. The general rule is that when you double the distance, you get a 6dB noise reduction. *
Characteristics of Super Quiet Generators
A portable generator is very basic equipment needed for most of the people as it acts as a best secondary source of electricity. People use power generators for numerous reasons including powering low wattage lights, small refrigerators and providing backup power during outages. A generator can also help us during natural disasters or when there are other emergencies. However, a noisy portable generator is a primary annoyance to your fellow campers or neighbours. So, having a best quietest portable generator is best for you and also for people nearby you as you surely wouldn’t want to ruin your relaxing time while camping or an outdoor family gathering with a loud generator.
However, choosing a quiet generator is not as easy as it might sound. Most quiet generators have noise level ranging from 47 to 76 decibels. Noise from a portable generator happens due to some factors, such as the vibration of the unit, the exhaust and size of the engine. So being aware of the reasons about producing electricity silently, will let you take the correct option towards choosing the quietest generator that best fits your needs. Here are some of the important characteristics of the quiet generator.
Throttle control of quiet generators
Having a little throttle is the best thing employed in portable generators to reduce noise. Generally, the portable generators work at a constant RPM speed regardless of the load, and it makes them not only to be louder but also to be less fuel efficient. So the generator engine’s ability to work at various output levels will significantly reduce the level of the noise. Bu this, the portable generator automatically differs the speed of the engine to run the required load optimally. When the output level is decreased, automatically you will get a quieter running generator
Inverter generator technology
Generally, inverter generators act quieter compared to the regular generators. Due to their compact design, inverter generators use a very small engine, which decreases the noise levels.
On the other hand, the body casing of the generator set also decreases the sound. They are constructed out of insulated, sound dampening materials which absorb noise vibration produced by the generator.
Sound varies according to the power output.
Generator’s noise varies depending on the engine size and its load and can be as high as 100 decibels. An important factor affecting a generator sound is the engine’s size. It also varies depending on the generator model. If two generators have the same power output but vary in the noise level, then this could come down to a better engine. The DB level will also always change according to the required load of the generator.