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Hair dryers use a lot of electricity compared to other things in your bathroom. If you want to save money on your electric bill or make sure your home's wiring can handle it, you need to know exactly how many watts hair dryers use and how to cut down your energy costs.
Key takeaways
Hair dryers need electricity to heat up and blow air at the same time. That's why they use so much power – they're basically running a heater and a fan together. The wattage number on your hair dryer tells you how much electricity it can use when running at full power. Hair dryers come in different power levels. Here are the main categories you'll find when shopping.
Most hair dryers sold for home use draw about 1,500 watts. This gives you good drying power without using crazy amounts of electricity and works well for most hair types.
Your hair dryer only uses power when it's actually running, unlike things like your refrigerator that run all day. So how often and how long you use it makes the biggest difference in your electric bill.
Using a hair dryer for 15 minutes uses about the same electricity as leaving a 60-watt LED bulb on for over 6 hours. It's also like running your microwave for about 20 minutes.
Here's how to figure out your costs: Take your hair dryer's watts, multiply by how many hours you use it, then multiply by your electricity rate. If you use a typical 1,500-watt hair dryer for 15 minutes every day your electricity price sits at 16 cents per kilowatt-hour, it would cost you 6 cents per drying, making about $2 per month and $22 per year. Higher-wattage dryers and longer use can easily double or triple this cost.
1,500 watts × 0.25 hours (15 minutes) × $0.16 × 30 days = about $2 per month
Your hair dryer doesn't always use the same amount of electricity. How you use it and what settings you pick can change your power bill quite a bit. These tips help you dry your hair just as well while using less power.
A typical hair dryer uses about 1,500 watts of power. Let's add 25% for the losses that happen when converting the DC power from solar panels to AC power that your hair dryer uses. So you'd need about 2,000 watts total, or five 400-watt solar panels to run your hair dryer at full power.
You don't need to size your whole solar system for peak demand. You're not running every appliance in your house at the same time. Plus, with a grid-tied system, your home can always pull extra power from the electric company if your solar panels aren't making enough at that moment.
If your solar system has a battery, any extra energy your panels make during the day gets stored there. When you need to dry your hair later, your hair dryer can use that stored power.
Here's a real example: Say you use your hair dryer for 15 minutes daily. That's 1,500 watts × 0.25 hours = 375 watt-hours. Add 25% for energy losses and you need about 500 watt-hours daily. If you live somewhere with 5 hours of good sun per day, you only need about 100 watts of solar power to cover your daily hair drying. That's less than one small solar panel!
Hair dryers do use a lot of power, but smart habits and efficient models can keep your electric bill down. For homeowners who like to save money and energy, solar power is another easy way to make your home more efficient.
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Let our engineer size a solar system just for you. He’ll make sure all the components match and work together well.
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