Does a Fan Use a Lot of Electricity? How Much Wattage Does It Use?

In the thick of the summer months, it can be hard to keep the house cool while also keeping the rising electricity costs at bay. If you constantly reach for the thermostat to cool things off, it might be time to reconsider. 

Utilising fans throughout your house is an excellent way to save a little on your energy bills. But how much wattage can you expect these devices to use? Read on to find out.

Do Fans Consume a Lot of Electricity?

In short, fans do not consume a ton of electricity. Of course, they require electricity to function, but compared to other cooling units, they use quite a bit less. Other options, like the EcoFlow Wave 2 Portable AC, can cool spaces without overusing electricity; with lower global warming potential and no ozone emissions, it’s the ideal way to stay cool and comfortable.

How Much Watts Does the Average Fan Use?

The exact watts a fan uses will vary from unit to unit. However, the average typically ranges from 50 to 100 watts per hour.

Some fans, such as box fans or oscillating fans, typically require a bit higher watts, especially when used at a high speed. The EcoFlow DELTA 2 can supply power to these units no matter where you are, so there’s no need to be concerned about their watt usage.

How to Estimate the Energy Consumption of a Fan

If you want to better understand how much energy your fans are using, there are some formulas you can use. You can get your answer by multiplying the watts used by the hours it is in use. 

The electricity usage of a fan depends on its wattage and electricity costs in your area. Fans typically run between 10W to 100W1. The average wattage for fans is 39.3W on high speed and 6.9W on low speed. Fans use about 0.0393 kWh of electricity per hour at high speed based on the average wattage.

Tips to Increase Your Fan’s Energy Efficiency and Reduce Electricity Bills

Opting to use your fan instead of cranking up the air conditioning is already a step in the right direction. Take a look at these tips below to help your fan be as effective and efficient as possible.

Invest in Quality Fans

While it may cost more on the front end, you’ll thank yourself later. High-quality fans are designed to work more efficiently and cool off spaces much quicker than cheaper versions.

Use the Proper Sized Fan

Do some research on the area where you want to install your fan. Would an overhead fan suit the place best? Or would a stationary fan do the job better?

With the EcoFlow RIVER 2 Series Portable Power Station like the EcoFlow RIVER 2, you can power any type of fan anywhere, so take the time to make the right choice for your situation.

Choose Fans Over AC

Instead of keeping the AC and fans blasting at full speed, you’ll benefit from turning the AC up a few degrees. This will save you a little on your energy bill and allow the fan to circulate the air, making the room feel cooler and more ventilated.

You don’t even need to worry in case of a power outage. The EcoFlow DELTA Series can keep your fans up and running even if the power has gone out.

Keep It Clean

Dust and dander are notorious for building up on fan blades, especially if they’re regularly used. Cleaning the blades will ensure that the fan stays functional and efficient at all times. 

Install It Correctly 

Believe it or not, there’s a right and wrong way to install a fan. To ensure that your fan is working at its maximum efficiency, you need to make sure that the blades are travelling counterclockwise. 

The fan blades are designed to capture more air when moving in this direction, therefore cooling the space quicker and with less effort.

Frequently Asked Questions

Do Fans Make Your Electric Bill High?

Using fans over AC can help you save on your electric bill. Investing in the correct sized, high-quality fan will help efficiently cool off your space without raising electricity costs.

Does Running a Fan All Day Use a Lot of Electricity?

Running a fan for the entire day will use some electricity, but it’s far less than an air conditioning unit running for the same amount of time. Even if you run the fan for 24-hour periods, this would likely account for less than twenty rand per day on your electricity bill.

How Much Does a Fan Add to an Electric Bill?

The size and wattage of your fan will affect the amount shown on your electric bill each month. That being said, even if you kept your fan running all day for an entire month, you would only see about 570 ZAR in expenses attributed to the fan. This would be almost tripled from using an AC unit for the same amount of time.

Final Thoughts

Opting to use your fan more often than your AC unit is an excellent way to save some money on your electricity bills. Choosing a suitable fan for your environment and setting it up correctly allows you to enjoy the benefits of cooler air without extra cost. 

Now, there are even more ways to save. For more innovative ways to reduce your electricity use, take a look at EcoFlow’s portable power stations to keep your fans and devices powered reliably. 

EcoFlow is a portable power and renewable energy solutions company. Since its founding in 2017, EcoFlow has provided peace-of-mind power to customers in over 85 markets through its DELTA and RIVER product lines of portable power stations and eco-friendly accessories.


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