Young woman trying to cool off in summer with a table fan

How much does a fan consume?

A fan is an appliance that can be used anywhere in the home, so it is worth looking at its power consumption. In this article you will find out what the average power consumption of a fan is and how to optimise its use to reduce its impact on your energy bill.

The different types of consumption of a fan

Fans are widely used today to keep rooms cool and well ventilated, but the amount of energy they consume is an increasingly important factor when choosing your fan. There are several types of fans and each has its own energy consumption.

Mini fans

Mini-fans are generally the most energy efficient. They are designed to be portable and can be easily moved around to cool a room. They can be operated from a standard power outlet or from a rechargeable battery. Most use about 2.5 watts of power per hour.

On the basis of this observation and for a moderate monthly use, the OCOOPA desk fan consumes approximately (2.5 W/1000) x 6 hours x 30 days = 0.45 kW per month. Based on the price per kW at EDF's regulated tariffs in 2022 for the most common meter powers (6 kVA) in the basic option, this gives us an amount of 0.3 kW x 0.1740 € incl. VAT = 0.08 € for one month.

Table fans

Table top fans are larger and more efficient than mini fans. They are designed to remain stationary and offer high power and efficiency. These fans tend to draw between 25 and 40 watts per hour, which means they can be expensive to run for long periods of time.

So for moderate use, this gives us the Woozo table fan, an average monthly electricity consumption of (38 W/1000) x 6 hours x 30 days = 6.84 kW, i.e. 6.84 kW x €0.1740 incl. VAT = €1.19 for one month.

Free-standing fans

Pedestal fans offer even more power and versatility than other types of fans. These models are designed to maintain a constant flow of air in a room and can easily cool large areas. The best floor-standing models can consume up to 80 watts per hour, but most common models consume about 50 watts per hour.

So for moderate use, the Rowenta consumes on average per month (70 W/1000) x 6 hours x 30 days = 12.6 kW i.e. 12.6 kW x 0.1740 € incl. VAT = 2.19 € for one month.

It is therefore essential to understand your needs and the type of power consumption each type of fan offers before settling on a particular model. Mini fans will generally be the cheapest to run, but they do not offer the same cooling capacity as larger units.

How to calculate the consumption of a fan?

As seen in our previous examples, to estimate the electricity consumption of a fan, it is necessary to know its power in Watts, the cost per kW from your current energy supplier and your estimated time of use. Once this information is known, it is possible to estimate the consumption of your appliance using a simple formula:

Power consumption of the fan = power (Watts)/1000 x operating time in hours x cost per kWh

For example, a fan with a power of 70 Watts will have a consumption for 6 hours of use per month of : (70 W/1000) x 6 hours x 30 days x €0.1740 incl. VAT = €2.19 for one month.

Solutions for reducing fan consumption

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There are many ways to reduce the power consumption of a fan that can be implemented to help protect the environment:

  • First of all, it is recommended to choose a fan that complies with energy standards. Appliances that meet these standards are generally more energy efficient and use less electricity. In addition, appliances that meet these standards often have advanced technology that allows for better energy management and savings. So you can be sure that your appliance will use less electricity and operate more efficiently.
  • It is also advisable to do not overload the fan by setting it to a too high power level, as this can lead to excessive energy consumption. It is preferable to choose a multi-speed fan, as they allow you to adapt their power to enjoy a pleasant room temperature without wasting energy in vain.
  • Similarly, it is important to ensure that the fan is well maintained It is recommended to clean the inside of the fan at regular intervals to prevent dust or dirt from clogging the blades or grilles, which can impede the airflow and cause overconsumption. It is recommended that the interior of the fan be cleaned at regular intervals to prevent dust or dirt from clogging the blades or grilles, which can impede the airflow and cause excessive energy consumption.
  • You should also use the fan only when necessary. Excessive or unnecessary use can lead to a significant increase in electricity costs, which can have a negative impact on your final bill.

Finding the right compromise between comfort and cost savings will therefore be crucial to minimise the fan's power consumption while maintaining a good level of thermal comfort in each room.