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Can a 100 Watt Solar Panel Run a Air Conditioner?

 Can a 100 Watt Solar Panel Run a Air Conditioner

Solar panels are an environmentally friendly and convenient way to power your devices while camping, traveling in an RV, or in your home.

Using solar panels combats the disastrous effects of fossil fuels and greenhouse gas emissions on our environment. Solar power is sustainable, green, and completely clean. The sun gives us more energy than we can ever possibly use.

We are here to tell you whether a 100-watt solar panel can power an air conditioner. You will also find out more about the power output of 100-watt solar panels, and the equipment you may need to run your air conditioner.

We will also tell you exactly which devices can be powered by a 100-watt solar panel, and you will find answers to some frequently asked questions about 100-watt solar panels.

Will a 100-watt solar panel power an air-conditioner?

It may be tricky to run an air conditioner with a 100-watt solar panel. But, with the right air conditioner, it is possible. 

How many watts are needed to power an air conditioner?

Air conditioners need a lot of electricity to run, and even more to start up. If you have an air conditioner at home, you might have noticed that they tend to rack up your electricity bill.

Even smaller air conditioners, like those used in small RV spaces, need a large amount of electricity to run. But how many watts are needed to power different types of air conditioners? Let’s find out.

Home air conditioners

Medium or smaller-sized home air conditioners have an average power consumption of around 500 watts over 24 hours. They may draw up to 2500 watts as the compressor starts up.

Bigger air conditioning units, like central air conditioning, can consume up to a whopping 3500 watts. These units may need upwards of 4600 watts to start up.

RV air conditioners

The power needed to run an RV air conditioner depends on the size of the air conditioner and the size of the room it is meant to cool.

An average-sized RV air conditioner will need about 650 watts per hour to maintain coolness. These air cons can use up to 1800 watts to start up.

A minimum of 1500 watts of solar power would be required to operate this type of RV air conditioner.

Bigger RV aircons can use up to 1700 watts to operate and need up to 3500 watts to start up.

Small portable air conditioners

On average, a portable aircon would consume around 1100 watts. There are, however, very small portable aircons on the market.

The niftiest of small portable aircons may consume as little as 500 watts and can cool a 100 square feet room. This might be your best bet with 100-watt solar panels.

How much power can a 100-watt solar panel produce?


A 100-watt solar panel produces around 400 watt-hours per day. But this depends on a few factors. The direction and angle of the solar installation, and the amount of sunlight it receives, will play a role in the output of the solar panel.

During the sunny summer months, a 100-watt solar panel can have an output of 600 – 700 watt-hours over a period of 24 hours.

In the wintertime, and when it is very overcast outside, a 100-watt solar panel may have an output as low as 80 watt-hours over a period of 24 hours.


Navigating the ins and outs of your solar installation can be challenging. Voltage, amps, watts – these technicalities can be a headache.

You are probably wondering: a 100-watt solar panel equals how many amps?

A 100-watt solar panel can produce around 5 or 6 amps of power per peak sun hour. This amounts to around 30 amp-hours per day. But this is only in direct sunlight.

100-watt solar panels usually have a ‘maximum current’ rating of 5.5 – 6 amps. Under normal conditions, the number of amps a solar panel produces can vary between 50 – 100% of the value of the maximum current rating.

100 WATT Solar Panel

What is the output of a 100-watt solar panel on a cloudy day?

Your solar panels will still work in cloudy weather, but not as optimally as they would in sunny weather.

A 100-watt solar panel output on a cloudy day would be around 10 – 25% of the normal output of your solar panel.

Will a 100-watt solar panel power an air conditioner?

In general, a 100-watt solar panel cannot power an air conditioner to run continuously. Just one 100-watt solar panel is not going to do the job

Even if the 100-watt solar panel reaches its peak output for the day, which usually happens around mid-day, it still won’t produce the wattage needed to power most air conditioners.

Powering your home air conditioning system or medium-sized RV conditioning system with a 100-watt solar panel is a no-go.  

With portable air conditioners, however, there is still hope. Some portable air conditioners can be very small and require low wattage.

A small air conditioning system and a small area that needs cooling may be the answer. Just make sure to use the air conditioner with discretion. It probably will not be able to run for an entire day.

Also note that while such a small portable system can run with solar panels alone, you would need a battery or power bank to use it for extended periods of time.

What do you need to power an aircon with a 100-watt solar panel?

If you want to run an air conditioning system with solar panels, you may need some additional equipment for your solar setup.

Your solar-power installation would need batteries, inverters, and solar charging controllers for the smoothest operation of your aircon.


Will a 100 watt solar panel run a 12v refrigerator

Although air conditioning systems can operate with solar panels alone, batteries are still essential. Without batteries, your solar setup will not be able to run air conditioning for extended periods of time.

Why should you use a battery?

Batteries can save excess electricity that was produced during the day. You can use the stored electricity during the night time or on cloudy days.

Batteries are great because they do not let excess electricity go to waste. You will not find yourself without power during the night if you have a battery.

With home solar systems, this isn’t an issue, as you can import and export electricity from the grid as needed.

What batteries should you get?

Batteries provide usable storage for excess electricity. The bigger the batteries are, the more storage they offer.

But, your battery should not be too big. If you want to drastically expand your battery capacity, you may need to increase your solar panel installation too. If not, it will take much longer to charge.

A 100 Ah battery would do the job, although they take a long time to charge. A 100 Ah battery would need between 20 and 25 hours of bright sunlight to fully recharge.

A 100 Ah battery would provide 50% usable storage. This is why you should get a battery that stores at least twice the daily output of your solar panel.

If you want to sustain your battery and make it last longer, you should refrain from letting the battery drop below 50%.


Inverters are electronic power devices that work to convert the electricity from the battery from direct current (DC) into alternating current (AC).

The power supplied to homes through the main public power grid flows in AC, while batteries only store DC power. The DC needs to be converted to AC since home appliances operate with AC.

What inverter should you get?

You should have an inverter that is much more powerful than the true number of watts needed to run your air conditioner.

While your air conditioning may only require 100 watts to run, it might need 150 watts to start up. In this case, you should use a solar inverter with 150-watt surge watts or more.

What can be run with a 1000-watt inverter?

1000 watt inverters are quite powerful and can run numerous appliances. You can power your coffee maker, Xbox, printer, vacuum, and toaster, among other things

When going off the grid or having adventures in an RV, some people might miss the luxury of a TV. You may be wondering: Will a 1000 watt inverter run a TV?

The good news is that a 1000 watt inverter can run a TV. It will be able to run gaming systems like Xbox and PlayStation too.

Solar charge controller

A solar charge controller regulates the voltage and current of your solar installation. These devices are portable.

Their function is to regulate the power flow to deliver optimal power output, run electrical loads, and charge batteries. A solar charge controller keeps the movement of power between your solar panels and battery in check.

Usually, charge controllers are used for charging the battery bank of your solar installation. It can also protect the system against damage, shorting out, or overcharging.

What can you power with a 100-watt solar panel?

A 100-watt solar panel can provide a great and reliable source of power to run many small devices. Of course, there are some considerations to keep in mind.

The first factor is the capacity of the battery being used and the power demands of the devices. The second factor is the type of charge controller and battery used with your solar installation.

If your 100-watt solar panel is connected to a decent deep cycle battery you should be able to operate a number of different devices.

Depending on these factors or limitations, you might need to run your devices one at a time, or during certain intervals.

Devices that can run off a 100-watt solar panel

  • Ceiling fans.
  • Lamps and lighting.
  • Laptops.
  • WiFi Routers can be powered for a whole day.
  • LED lights.
  • Charge smartphones or tablets.  
  • Small LCD TV set.
  • Cable box and satellite dish.
  • Printers.
  • Alarm clocks.

Devices that cannot be run off a 100-watt solar panel

  • Heaters.
  • Large TV sets.
  • Most air conditioners.
  • Microwaves.
  • Hairdryers.
  • Electric kettle.
  • Freezer.
  • Toaster oven.

Can a 100-watt solar panel run a refrigerator?

Solar panels are a great way of adding some bells and whistles to your camping or RV experience. But can a 100-watt solar panel run a refrigerator to keep your food cold?

Unfortunately, they cannot. Fridges consume a lot of power to run continuously and keep food safe.

Is a 100-watt solar panel enough to power an RV?

A 100-watt solar panel that receives 4 hours of peak sunshine can generate 400 watt-hours per day. For this, you would need up to three 100-watt solar panels to power the RV.

There is a catch, unfortunately. Keep in mind that RVs draw additional power that needs to be supplied at the same time. You would probably need twice the amount of 100-watt solar panels, which is six.

Is a 100-watt solar panel enough for an RV? Well, not really. 

Unfortunately, most RVs cannot manage 600 watts of solar energy. You may need to look into alternatives like increasing your battery capacity.


Investing in a solar installation for the first time may be tricky. 100-watt solar panels are a great way to ease yourself into getting to know the ins and outs of DIY solar power.

We told you everything you need to know about what a 100-watt solar panel can and cannot do, and what equipment you need to run your solar setup.

Although a 100-watt solar panel cannot be used to power most air conditioners, there are some very small portable air conditioners out there that can make it work. You can also run other nifty devices like lights, laptops, Wi-Fi routers, and ceiling fans. 

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