Molly Ayala
Heating and cooling are the biggest drivers of electricity consumption in the home, accounting for around 40% of electricity bills. The HVAC system is the primary culprit, using more than half of the average U.S. home's energy consumption. Other big users of electricity in the home include lighting, washers, dryers, ovens, stoves, water heaters, refrigerators, and electronic devices.
| Characteristics | Values |
|---|---|
| HVAC systems | 46% of the average U.S. home's energy consumption |
| Water heaters | 18% of a home's total energy; $600/year |
| Refrigerators | 14% of a household's electricity use; $53/year |
| Lighting | 4%-9% of a home's energy use |
| Electronics | 4% of energy use |
| Washers and dryers | 5%-6% of home energy consumption |
| Ovens and stoves | 75 kWh and 45 kWh per month |
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Heating and cooling systems
There are several ways to reduce electricity usage from heating and cooling systems. Firstly, it is important to ensure your home is properly insulated and sealed. This includes caulking leaks and weather-stripping windows, as well as sealing and insulating ducts. According to the U.S. Department of Energy, up to a third of heat loss occurs through windows and doors, so keeping curtains drawn during summer and open during winter can help regulate temperatures.
Another way to reduce electricity usage is by installing a smart thermostat. This allows you to control your home's heating and cooling temperature settings remotely and can offer energy savings of up to $180 a year. Additionally, performing basic maintenance on your systems can improve efficiency and reduce costs. This includes checking and changing air filters regularly, as well as getting your heating and cooling equipment serviced annually.
Finally, you can reduce the workload on your HVAC system by using ceiling fans and adjusting the thermostat settings based on the season. In the summer, set your thermostat to 78°F and use fans to create a cooling breeze. In the winter, set the thermostat to 65°F and reverse the fan direction to push warm air from the ceiling back down into the room.
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Washers and dryers
The cost of running these appliances can add up quickly. For example, a New York household with a 1400-watt washing machine, paying 24.69 cents per kilowatt-hour (kWh), and running their machine for 45 minutes per load, 5-7 times a week, will spend around $95 a year on washing. The same household will spend over fifty cents every time they use their dryer, adding up to around $218.40 a year.
There are several factors that influence the energy consumption of washers and dryers:
- Age: Older machines tend to consume more energy as they wear down over time. Newer models are more energy-efficient.
- Fuel Type: Gas dryers use less energy than electric ones.
- Design: Ventless dryers are more energy-efficient as they recycle hot air instead of releasing it.
- Cycle Settings: Washing and drying clothes at lower temperatures reduces energy consumption. A washer with a fast spin cycle also reduces drying times and overall power consumption.
Homeowners can lower their energy bills by being mindful of these factors and making small changes to the way they use their washers and dryers.
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Lighting
To reduce electricity usage from lighting, consider the following tips:
- Turn off lights when leaving a room.
- Use smart home devices that allow you to monitor and control your energy usage.
- Choose energy-efficient light bulbs.
- Use natural light during the day by opening curtains or blinds.
- Install motion sensors or timers for lights in areas such as hallways, closets, or bathrooms, to ensure they are not left on unnecessarily.
While lighting may not be the biggest energy consumer in your home, small changes can lead to significant energy and cost savings over time.
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Ovens and stoves
Wattage and Electricity Consumption
Ovens typically use between 2,000 to 5,000 watts of electricity, with an average of around 2,500 to 3,000 watts. Stoves, on the other hand, generally use less wattage, ranging from 1,000 to 3,000 watts, depending on the burner size. Induction burners tend to use less wattage than traditional electric burners. Therefore, when comparing an oven and a stove burner, the oven usually consumes more electricity per hour.
The actual wattage drawn by your oven and stove depends on the amount of heat generated. For example, the energy consumption differs significantly between cooking at a lower temperature and self-cleaning your oven at a much higher temperature. It's challenging to track a kitchen range's energy consumption accurately due to variations in heat settings and cooking times.
Cost Implications
Using an oven and a stove for about one hour a day, each operating at medium-high heat, will result in 75 kWh and 45 kWh of electricity consumption per month, respectively. Combined, they can use approximately 1,022 kilowatt-hours (kWh) of electricity per year, costing around $12.08 per month or about $145 annually.
Energy-Saving Tips
To reduce the electricity load from your oven and stove, consider the following:
- Opt for a gas range if available in your area, as it is generally more energy-efficient than electric options.
- When possible, use smaller appliances such as a toaster oven, microwave, or slow cooker, which require less energy.
- Cook multiple dishes at once to maximize the use of your oven or stove and reduce overall cooking time.
- Avoid unnecessary preheating, especially when cooking small amounts of food. Toaster ovens and multi-cookers are great alternatives that don't require preheating.
- Utilize your microwave for reheating leftovers instead of the oven or stovetop.
- Keep the oven door closed while cooking to retain heat. Use the oven light to check on your food without opening the door.
- Turn off the burners a few minutes early and let residual heat complete the cooking process.
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Water heaters
Water heating accounts for about 18% of a home's energy use and is typically the second-largest energy expense in any home. An average water heater runs for about 3 hours a day, and the average household spends up to $600 a year on water heating.
There are several ways to reduce water heating bills and save energy:
- Set your water heater's temperature to 120°F or lower.
- Install a low-flow showerhead to reduce the amount of water needed, which in turn reduces the workload on your water heater.
- Wash your laundry with cold water. Heating laundry water is one of the most energy-demanding activities in a home.
- Insulate your water heater to improve its efficiency.
- Buy a new, more efficient model.
You can also consider switching to a cleaner energy plan, such as solar power, to reduce your carbon footprint and energy costs.
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Frequently asked questions
Heating and cooling systems are the biggest users of electricity in a home, making up around 40% of your electric bill. HVAC systems, in particular, use more than half of the average U.S. home's energy consumption.
Other big users of electricity in a home include washers, dryers, ovens, stoves, and water heaters. Lighting also accounts for about 9% of a typical home's energy use.
To reduce electricity usage, you can try to lower your usage of the appliances listed above. You can also try to improve the energy efficiency of your home by upgrading insulation in the walls and roof, ensuring windows are draft-proof, and purchasing newer appliances.
To reduce electricity usage for heating and cooling, you can try to only heat or cool your home when necessary. You can also try to use ceiling fans, dress for the weather, and get annual tune-ups for your heating and cooling systems.
