Beware: Leaving a fan on all night could cost you more than you think

Jules Nova

Beware

When the summer heat is at its peak, a fan can feel like a lifesaver. It’s one of the most accessible and affordable solutions to cool off during a heatwave. Whether you’re working from home or trying to get some sleep during a scorching night, fans are often the go-to tool. But before you leave one running all night long, there’s a cost you might not have considered – your electricity bill.

As temperatures climb, especially in places where summer heatwaves regularly push thermometers past 30°C, fans become more of a necessity than a convenience. But while they may seem like an innocent way to stay cool, they do use a surprising amount of energy when running for extended periods.

How Much Does a Fan Actually Cost to Run?

Many people assume that fans are cheap to operate, but the reality is a bit more complicated. The size and energy efficiency of the fan can drastically affect your monthly energy costs. The basic calculation to estimate how much your fan is adding to your bill involves multiplying the hours of usage by the power rating (in watts) of the fan. After that, divide the result by 1,000 to convert it to kilowatt-hours (kWh). Finally, you multiply the kWh by the rate your utility company charges for electricity.

On average, running a fan for several hours each day during the hot summer months can cost anywhere from $5 to $10 per month. It might not sound like much at first, but when you think about using it every night for weeks or even months, the cost can quickly add up.

To minimize this, it’s wise to consider the energy efficiency of the fan you purchase. Many modern fans come with a high energy rating (A+ to G), which indicates how much energy they consume. Opting for a more energy-efficient model can make a noticeable difference, especially during the peak summer months, when your fan will likely be running for hours each day.

While fans are still one of the cheapest ways to stay cool, it’s essential to be aware of how these small appliances can contribute to your monthly energy usage. Next time you reach for the fan, keep an eye on how long you leave it on—your wallet will thank you later!