What Size Generator for 30 Amp RV?

What Size Generator for 30 Amp RV

There are several factors to remember, when searching for a top-notch generator for your small or medium-sized 30-amp RV. Your quest for a generator should be based on your electricity requirements and the appliances and gadgets you intend to use frequently. The more items you want to power up, the more energy you’ll need – plain and simple!

Typically, a 30-amp RV is considered smaller than a 50-amp RV, and smaller recreational vehicles consume less power. So, you should use a quiet inverter generator if you have a small power requirement. Although they may come with a slightly higher price tag than conventional generators, their noise reduction is worth its weight in gold – you can say it’s music to your ears!

The best generator options for a 30 amp RV are typically those that range between 3000 to 4000 watts, assuming that the RV has a small AC unit. Before settling on any specific model, conduct thorough research and compare different models to determine which suits your needs best.

What Size Generator Need for a 30 Amp RV?

When choosing the right generator for your 30-amp RV, The maximum power your RV can handle is up to 3600 watts. While it may seem logical to purchase a 3600-watt generator, there are better approaches than this one.

If you have some wiggle space in your budget, I recommend over sizing your generator slightly to ensure you have enough power to cover all your electrical needs. That being said, if you have a 30 amp service and plan to use multiple appliances simultaneously, opting for a generator with a wattage range of 3000 to 4000 watts is best.

By selecting a generator with a higher wattage, you can have peace of mind that you have ample power to run all your appliances and devices without worrying about power outages or overloading the circuit. However, remember that this range assumes you only have one small AC unit. You may need to adjust your generator’s wattage accordingly if you have additional power-hungry appliances or multiple AC units.

How to estimate generator size for your 30 amp RV?

If you have a small to mid-sized 30-amp RV, it’s important to know about starting and running watts to determine the right generator size.

Whenever a large appliance such as an air conditioner or refrigerator is turned on, it requires a brief surge of power to get started – this surge is known as starting watts. Once the appliance is up and running, the power requirement decreases considerably, referred to as running watts.

It’s essential to consider both the starting and running watts of the appliances you plan on using, when estimating your generator size for your RV. This information will help you to choose a generator that can provide sufficient power for all your devices and appliances.

Major power uses in your RV:

If you own a small to mid-sized RV, it’s important to be aware of the biggest power consumers in your vehicle. Here are some of the main culprits:

Small RV air conditioner: This can use up to 1600 watts of power when starting up and 1000 watts while running.

Microwave: Your RV’s microwave might require up to 1000 watts to start and then 1000 watts to keep running.

It’s important to keep these numbers in mind when estimating your power requirements. If you use both appliances simultaneously, you must ensure your generator can handle up to 2600 watts when starting up and 2000 watts while running.

Of course, double-checking your specific appliances is always a good idea to see if these estimates are accurate for your RV. But by being aware of the major power users, you can plan accordingly and avoid unexpected power outages.

Picture a warm summer evening with friends in your RV, enjoying a delicious meal. With the right generator, you won’t have to worry about your appliances cutting out mid-cook and can relax and focus on enjoying the moment.


Q1: Will a 3500 watt generator run a 30 amp RV?

A: For a 30-amp RV, a 3,500-watt generator is typically a suitable choice. This generator size can handle the power demands of small to mid-sized RVs, including running a small air conditioning unit, microwave oven, refrigerator, and a few lights simultaneously. It strikes a good balance between power output and portability, making it an excellent option for campers looking for a reliable power source.

Q2: Is a 4000-watt generator enough for an RV?

A: If you own a 50-amp RV, it’s recommended to have a generator with a power output ranging from 5,000 to 12,000 watts. However, if you have a low-capacity AC unit or no AC at all, a 3,500W generator may suffice. Remember that a 3,000-4,000W generator can only handle a 30 amp load, meaning you won’t be able to run all your appliances simultaneously.


The generator size for your 30 amp RV depends on your electricity needs and the appliances you plan on using regularly. A 30 amp RV is generally on the smaller end compared to a 50 amp RV; therefore, smaller RVs consume less power. If you have a small AC unit, the top-performing RV generators with 30 amps usually range from 3000 to 4000 watts. It’s important to consider both the starting and running watts required by the appliances you intend to use. The major power users in your RV include a small RV air conditioner and a microwave. Therefore, if you have these appliances and plan on running them simultaneously, you may need a generator with starting watts of up to 2600 watts and running watts of up to 2000 watts. A quiet inverter generator is highly recommended due to its noise-reduction feature. By considering all these factors, you can select the perfect size generator that meets your specific needs for your 30 amp RV.

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