Heating and cooling are by far the greatest energy users in the home, making up around 40% of your electric bill. Other big users are washers, dryers, ovens, and stoves. Electronic devices like laptops and TVs are usually pretty cheap to run, but of course, it can all add up.
Hair dryers, ovens, and space heaters use very few kilowatt hours and even refrigerators are energy friendly. This is especially true of newer refrigerators, which consume only 30 kilowatt hours per month.
Your heating, ventilation and air conditioning system likely uses the most electricity at home. The EIA tells us that space heating and cooling accounts for slightly over 30% of residential energy usage. These appliances run frequently, and many factors can affect their efficiency, like drafts and poor insulation.
Washing machines, dishwashers and tumble dryers account for 14% of a typical energy bill, making them the most energy thirsty. The power they need to heat the water or air inside them means they use more electricity. Checking the energy rating of dishwashers can help you save money.
According to the U.S. Department of Energy, standby power accounts for as much as 5% to 10% of residential energy use, and homeowners could save $100 to $200 each year on utility bills by unplugging devices that aren't in use.
1. Tumble dryer. If you have a large household, laundry is likely to be a time-consuming task that tumble dryers can speed up considerably, but they are also one of the biggest energy-sapping appliances in our homes. The type of tumble dryer you have makes a huge difference to how much it costs you to run.
Room air cleaners are portable, electric appliances that remove fine particles, such as dust and pollen, from indoor air. A standard room air cleaner, operating continuously, uses approximately 450 kWh per year in electricity. This is more than the energy used by some new refrigerators!
The most common reasons for a big jump in your electric bill include changes in your lifestyle, increased usage of energy-hungry appliances, and sudden weather changes.
Your electric bill is likely to account for the highest expense on your monthly utility bill. Most Americans find their electricity usage is 41% heating and cooling, so that's often the biggest expense.
You're Using Older or Less Energy-Efficient Appliances
Large appliances like your washer and HVAC system consume the most home power. If the majority of your appliances are 10 or more years old, they may be using significantly more energy than newer, high-efficiency models.
Gas ovens are the biggest culprits, so if you have the option, opt for a convection or fan oven. If you get into the nitty-gritty, you'll find microwave ovens are where it's at. They use approximately 50% of the energy produced to cook your kai (food)—win.
To get specifics regarding your energy usage, you need an electricity usage monitor that tells you exactly how many kWh a device or appliance is drawing. It can be as simple as a "plug load" monitor that plugs into an outlet.
Whether you're using your air conditioner in summer or your furnace in winter, this makes up the biggest expense on your electricity bill. In fact, heating and cooling account for close to half of an average household's energy usage. The next highest contributor to your electricity bill is your water heater.
An increased utility bill is often caused by a change in water usage or a leak. Some common causes of increased utility usage include: A leaking toilet, or a toilet that continues to run after being flushed. A dripping faucet; a faucet drip can waste 20 gallons or more of water a day.
The Givoni or Woods diagrams show a direct relationship between air speed and the drop in temperature felt by users of the room. In this case, a ceiling fan will consume between 20 and 50 watts (still a long way from the consumption of an air-conditioning system (800 to 1500 watts, i.e. 30 to 40 times more).
Yes, your toaster uses electricity even when you're not using it. Leaving your toaster plugged in uses electricity, but it's hardly the worst offender in your house.