Best 20, 30, 50, 100, & 200 Amp Generators

A generator is useful in many ways. Often times when you need it the most, it’s not there. That’s why investing in such a product is important to have backup power always available for you. Some RVs have a built-in generator that comes directly from the factory. 

However, class A motorhomes might lack such a feature. That’s why you need to have a piece of power-generating machinery, especially when you’re out there on the road. Ensure to maintain your machinery and protect it from the environment’s harshest conditions, as they can get damaged, especially when camping outdoors. 


When we tested out various products, we found that the best amp generator for your RV or home was the Generac GP5500 with a 50 amp capacity, which can power most of your needs.

Here’s a full list of the various category winners:

  • Best 15 amp generator: Ryobi RYi2322VNM
  • Best 20 amp generator: Honda EU2200i
  • Best 30 amp generator: Generac 7127 IQ3500
  • Best 50 amp generator: Generac GP5500
  • Best 60 amp generator: Briggs & Stratton Q6500
  • Best 100 amp generator: Westinghouse WGen12000
  • Best 200 amp generator: Generac 7043

How we picked & why you can trust us

We are passionate about camping and motorhomes, so we know all the appliances that need to be powered. For such a task, a performant yet affordable generator is needed. We took our time to search the market and analyze every model available. For each category, we picked a winner which we also ordered and tested.

Continue reading

Let’s take a look now at the various types and their own specifications.

Table of Contents

Best 15 amp generator – Ryobi RYi2322VNM


A generator with an output of 15 amps will usually have a capacity of 1,500 watts. That’s why this Bluetooth inverter generator is the best choice for this output. This machinery has many features which will be useful to you, allowing for easy usage. 

The developer team at Ryobi created one of the best apps for your phone. It will allow you to remotely control your machinery and see all the real-time running specifications, including the fuel level. Strong and durable wheels will make this portable machinery easy to carry around your home’s campsite or backyard. 

With a cost of just under $650, this high-quality machinery will offer lots of value for this budget. The power output of the RYi2322VNM is around 1,800 watts will be just enough to power some of the basic appliances and devices that require power. 

It is an ideal choice for RVs since you can charge all of your gadgets when you’re out there on the road and severe weather rolls in. Ryobi developed this basic yet efficient generator with practicability in mind while at the same time still offering modern features such as digital displays and performant software. 

Best 20 amp generator – Honda EU2200i


A piece of power-generating machinery with an output of 20 amps will usually have a capacity of 2,500 watts. Honda created the best portable generator for camping and recreational use, which is also a good choice if you want a light emergency backup option. 

The Japanese are strict perfectionists when it comes to engineering and manufacturing things. That’s why Honda developed an engine that is larger and better performing than the ones found in their competitors. As a result, the overload point is much higher, and the EU22000i will easily outperform its competition. 

Honda EU2200i

Models created by Honda are well-known for high quality and durability, which will stay constant in the long term. Made to last, these will last you for years and still offer the same performance a long time after their first usage. Customers are satisfied with the quality, and most of them can start the engine from the first pull, which is impressive. 

Bluetooth connectivity with a controlling app will allow you to remotely control and view this machinery’s running specifications, including diagnosis and maintenance requirements. The price of the EU2200i is $1,000, which can be considered a worthy investment for your backup power needs. 

Best 30 amp generator – Generac 7127 IQ3500

IQ3500 Generac

A generator with an output of 30 amps will usually have a capacity of 3,500 watts. This 240v inverter generator is one of the best products created by Generac, which has been around since 1959. Specializing in the production of affordable models, this company is trusted by many around the world.

Generac IQ3500

The IQ3500 has a starting power of 3,500 watts and will produce 3,000 watts constantly while being fueled on gasoline. Because it is an inverter generator, you should expect a lower output in general. The fuel tank has a capacity of 2.6 gallons and can run up to 9 hours at a half load. 

This machinery has a lower fuel consumption than other models in this range, such as those produced by Yamaha and Honda. The noise level reaches a maximum of 47 dB, which is extremely quiet, and you’ll be able to hold normal conversations even when you’re around the machinery. This is possible because the company used advanced inverter technology and special designs to reduce sound levels. 

NameGenerac 7127
Capacity30 amp
Item Weight109.1 Pounds
FeatureVery quiet
USB portsYes

Priced at $1,449, the value is maximized by outstanding efficiency and long-lasting performance. A worthy investment, this machinery from Generac will supply power to your home for years to come. 


  • Takes care of your power needs
  • Easy to use


  • It may be more than you’re willing to spend.
  • Long delivery on some models
  • No wheels

Best 50 amp generator – Generac GP5500

A generator with an output of 15 amps usually has a capacity of 5,500 watts. The Generac GP5500 is a portable model, ideal for travelers who want to power up their travel trailer while on the road. An emergency power generator will always be ideal, and this model is also efficient for your house. 

With an innovative engine that will last a long time, this machine can produce 5,500 running watts and 6,900 starting watts. The fuel tank holds 7.2 gallons, allowing you to generate power for up to 10 hours at half capacity. A special mechanism shuts down the engine if the oil level is low, preventing and avoiding damage.

Wheels will help you carry this portable machinery around. A handle will also be useful, which can be folded down to maximize space whenever you want to store your machinery. An hour meter will track the maintenance intervals, making repairs and check-ups easier.

Steel tubes make the hardened steel frame which ensures high durability even after years, making it perfect for heavy-duty use. 

Best 60 amp generator – Briggs & Stratton Q6500

Briggs & Stratton Q6500

Ones with an output of 60 amps usually has a capacity of 6,500 watts. Inverter generators always had an impressive performance while also keeping a low noise level. The team at Briggs & Stratton developed the best 6,500 watts generator you can find on the market, and that is the Q6500 model.

 With a strong and durable engine, this machinery can provide 14 hours of run time with a full tank. Safety measures will prevent accidents, such as a CO guard, which will shut down the machine once harmful levels are detected. The simple and minimalistic design featuring a compact handle and durable wheels will make moving this portable machinery around easier. 

This company listened to customers’ requests when they asked for low noise levels and developed the Q6500, which became one of the most silent options you can find. It is 60% quieter than other options, and it’s all because of a specially designed noise-reduction frame. A protective cover holds a sturdy steel frame, making this machinery resistant to minor damage. 

NameBriggs & Stratton Q6500
Capacity6500 starting watts
Item Weight144.7 pounds
FeaturesMultiple outlets


  • Portable as it comes with wheels
  • Cheaper than Honda
  • Comparable build quality to Honda


  • Heavy
  • May be too much

Best 100 amp generator – Westinghouse WGen12000


A generator with an output of 100 amps will usually have a capacity of 12,000 watts. The WGen12000 is probably the heaviest portable 12kw generator you will find, but all this excess weight comes from the powerful engine, which outperforms any other model. 

This efficient model will easily keep all of your appliances powered up during a blackout. An open frame made out of hardened steel ensures strength and durability, protecting the engine against external conditions. A simple and practical push button allows an electric start, which can also be done by a wireless key intended for remote starting. 

The heavy-duty engine produces an impressive 15,000 starting watts and then 12,000 running watts, which will constantly supply your house with the necessary power. But the WGen1200 uses mostly traditional technology, and the power will fluctuate, so consider this if you want to connect sensitive electronic devices as they can get damaged. 

Although it weighs an incredible 352 lbs, this portable machinery is easy to carry around. Wheels that are never flat will roll this machinery to your convenience, and a foam grip handle will make the process comfortable for you. The noise level reaches 74 dB, and that’s mainly because of the open frame body, which doesn’t feature any noise cancellation system. 

Setting up this machinery is easy and can be done by anyone, as the company provides you with all the necessary things except fuel. Customers are particularly satisfied by the intelligent idle feature, which will make the generator run at lower power when it’s not under a heavier load, thus reducing the noise level.

NameWestinghouse WGen12000
Capacity12000 Rated Watts & 15000 Peak Watts
Item Weight352 Pounds
FeaturesRemote start


  • It takes care of all your power needs
  • Great quality
  • Good wheels


  • An expensive piece of machinery


Westinghouse WGen12000
76 Reviews
Westinghouse WGen12000
It's portable with the wheels.

Best 200 amp generator – Generac 7043

Generac 7043

A backup generator with an output of 200 amps usually has a capacity of 22,000 watts. The Generac 7043 is the best option if you want to power up your whole house after a severe storm that led to a power loss in your neighborhood. 

This standby generator is the largest one on the market, but the power capacity is just as impressive. An automatic transfer switch connects the generator to your house and provides it with 200 amps. 

This switch will turn on the generator within seconds after the main power goes off, supplying electricity to all of your circuits. This 22kw generator runs on your home’s natural gas, but it can also be set to run on an external propane tank. 

Thanks to the WiFi technology installed on this machinery, you will be able to monitor the performance and live statistics through your smartphone. 

NameGenerac 7043
Capacity200 amp
Item Weight515 Pounds
Warranty5 years
Made inUSA


  • Trusted name
  • You’re supporting US jobs


  • Not cheap
74 Reviews
It can provide for your home.

Best 400 amp generator – Cummins RS40 Quiet Connect Series

A generator with an output of 200 amps usually has a capacity of 40,000 watts. This heavy-duty model is designed to resist extreme conditions and unexpected environmental changes. 

Such powerful options will also power up your workshop and all the necessary tools, such as tig welders or metal lathes

After a strong blizzard, the power might run out in your neighborhood, but you won’t have to worry since the RS40 can start at temperatures as low as -40 degrees Fahrenheit. 

The enclosure is aesthetically pleasing and delivers excellent noise protection, making it the quietest option of this power. Aluminum materials were used for production, and special paint protects against scratches. 

This machinery is suited even for areas with the harshest weather, as it’s made to withstand 180 mph of wind loads. Removable panels will make maintenance and repairs much easier. Electronic control features will make it easy and simple to operate. 

What is the cost of a 20, 30, 50, 100 and a 200 amp generator?

The cheapest generator on our list is the 15 amp Ryobi RYi2322VNM, which sells for $899. If you want to power large appliances, the most expensive one you can get is the Generac 7043 and you will have to pay $6,200 for it. On average, you can expect to pay around $1,000 for a generator.

Portable vs. permanent

Portable generators are usually run by fuel and cost less than permanent ones, but they are more difficult to handle as they have to be manually started when the power goes out. Refueling is a manual process that you’ll also have to keep track of constantly. 

Permanent generators are more convenient, and because they run on natural gas, the switch is made almost instantly after a power cut is detected. It is beneficial if you are not home when the power goes down, as the sensors will pick up the loss and automatically start the machinery. 

While portable models will cost you a couple of hundred dollars, the permanent ones are more expensive and can range between $2,000 to $6,000, depending on their performance. 

We have you covered if you are looking for generators for RVs & homes. We will present you with the best 20, 30, 50, 100, and 200 amp generators.

Why you need a generator

The main reason why you would need a generator is because of emergencies, which can happen anytime and come unexpectedly. Natural disasters are more common nowadays due to climate change. 

Floods and blackouts will leave your entire neighborhood in darkness, and you’ll be envious of your neighbors who got permanent running power just because they invested in a generator. 

Now, you will do the same, and we will help you choose the best one for your needs. The benefits of machinery like this are not always completely related to comfort. While your lights will start working again for your convenience, there are more important reasons to consider a generator. 

All your devices and pieces of equipment inside your house will be able to function again with the help of backup power, and some are important such as a fridge that will keep your food from spoiling or even the security system protecting your house. In some cases, medical devices and life support equipment will have to function non-stop, so getting a piece of power-generating machinery can be lifesaving. 

It will be essential for you if you have a mobile home. While you are out there camping in the wilderness, it’s good to have electric power always available for your needs. 

While most RVs are powered by built-in generators or solar panels on the roof, a backup is always essential and can be lifesaving. In the event of an unexpected disaster, you will need to have the ability to charge your phone to keep in contact with the world.

If you are curious about wires and circuit breakers of different amps, check our guide here

Factors to consider

Before buying one, it is important to consider all the features it will offer you. While some are simple and basic to generate more power, others are equipped with multiple options that will bring many benefits. 

Automatic start

This option will automatically turn on the generator whenever the power goes off, and you won’t have to start it manually. Sometimes, you might need non-stop power supplied to your house, and an automatic start will make it possible.

Fuel gauge

A fuel gauge will be useful, especially at night when visibility is low. With this gauge, you can see exactly how much fuel is left, and you’ll know when to refuel accordingly. 

Multiple outlets

It’s more useful for RVs and campsites. Multiple outlets will allow you to maximize the wattage usage by spreading the load.

Electric start

A simple and easy-to-push button can be an alternative to the struggle of manually starting your generator’s engine. 


What size generator will run a house?

For a home, you will want a generator that is able to provide 7,500 watts. However, it’s important to consider what it is you want to power. Such an amount of electricity will help you with your most critical appliances to be sure you don’t face a disaster unprepared.

What can a 50 amp generator run?

A 50-amp generator will be able to run the equivalent of 5 microwave ovens at the same time. On the other hand, an AC requires 3,000 running watts. That way, you won’t need to run around in your bra or underwear to stay cool!

Will a 24kw generator run a whole house?

Yes, a 24kw generator can comfortably run a whole house.

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