Molly Ayala
There are many reasons why your electricity bill might be higher than expected. Some common causes of high electricity usage include appliances being used at the wrong time, behavioural waste, and appliances that are not energy efficient. For example, using appliances such as washing machines and dishwashers on high heats can increase energy usage, as can overfilling your fridge-freezer, and leaving gadgets on standby.
| Characteristics | Values |
|---|---|
| Electronic gadgets on standby | Can account for as much as 10% of a monthly power bill |
| Water heater temperature set too high | Lowering the temperature to 120°F can help reduce electricity consumption |
| Appliances used at the wrong time | Using appliances during peak hours can result in higher electricity rates |
| Long showers | Reducing shower time lowers the demand on the water heater and cuts back on electricity usage |
| Behavioral waste | Leaving lights on in unoccupied rooms, staring into an open refrigerator, and falling asleep without turning off the TV contribute to higher electricity bills |
| Inconsistent temperature control practices | Keeping the house at extreme temperatures while sleeping or away from home can waste energy |
| Overworked furnace fans | Circulating air through ductwork requires energy |
| Overfilling cold appliances | Refrigerators and freezers work harder to maintain appropriate temperatures when overfilled |
| Appliance size | Larger appliances require more energy to retain their temperature, even if the space is not fully utilized |
| Washing machines and dishwashers | These appliances are often used on high heats, requiring more energy |
| Washing machine usage | It is more energy-efficient to do one large wash rather than multiple small washes, and to dry clothes outdoors when possible |
| Dishwasher usage | Running the dishwasher only when it is completely full helps reduce energy consumption |
| Age of appliances | Older appliances that are not ENERGY STAR® certified may be less energy-efficient |
| Standby mode | Many modern appliances continue to draw power even when turned off, contributing to higher electricity bills |
| Cable boxes | Cable boxes spend downtime updating software and have constantly moving internal drives, resulting in higher standby power usage |
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What You'll Learn
Appliances left on standby
Leaving appliances on standby can significantly contribute to large electricity drains in your house. Standby power is the energy drawn down by an appliance when it's not in use. Appliances on standby can account for up to 10% of your monthly power bill, which can amount to $100-$150 annually.
Some appliances, like ovens and air conditioners, use ''passive standby' mode, where the appliance is plugged in but switched off. This may be to display a clock or use a timer, and these appliances typically use minimal power. However, other appliances, such as smart systems or gaming consoles, use 'active standby' mode, requiring more complex sensors or running updates and downloads in the background. Active standby mode can cost 5 to 10 times more in electricity than passive standby.
Everyday appliances like washing machines and dishwashers are some of the biggest energy drains in a house, as they are often used on high heats. However, most of their energy usage goes into heating the water. You can save energy by only running your dishwasher when it's full and washing your clothes on lower temperature settings or eco modes.
To reduce standby power consumption, get into the habit of switching appliances off at the power outlet when they're not in use. Make sure power outlets are easily accessible, and consider setting reminders to switch off appliances before bed. You can also use 'master/slave' power boards that automatically cut power to certain devices when you shut down others.
By being mindful of standby power and taking steps to reduce it, you can lower your electricity bills and decrease your environmental impact.
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Old, inefficient appliances
Secondly, outdated appliances with fewer electronics may require less standby power, but they often cost more to operate. Standby power, also known as "phantom" or "vampire" energy, allows devices to remain active in the background, performing functions like updates and downloads. Appliances such as computers, DVRs, and AV equipment can silently drain power, increasing electricity costs.
To mitigate these issues, consider replacing old appliances with energy-efficient alternatives. Look for the Energy Star certification when purchasing new appliances. Additionally, unplugging devices or using smart outlets that automatically cut power to devices on standby can help reduce vampire energy consumption.
Furthermore, some specific practices can help reduce energy consumption by old appliances. For instance, avoid overfilling your refrigerator or freezer, as this makes them work harder to maintain the appropriate temperature. Also, consider washing your clothes on lower temperature settings or eco-friendly modes, and dry them outdoors when possible. By implementing these strategies, you can reduce the electricity drain caused by old, inefficient appliances.
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Overuse of high-energy appliances
One of the most common high-energy appliances is the refrigerator or fridge-freezer. These appliances constantly run to maintain a constant temperature, keeping your food fresh. Overfilling your fridge or freezer can make it work harder to regulate temperatures, increasing energy consumption. Additionally, older refrigerator models may be less energy-efficient, so consider upgrading to a smart fridge or an Energy Star-rated alternative to improve energy efficiency and reduce overall energy usage.
Washing machines, dishwashers, and tumble dryers are another set of high-energy appliances. These appliances use a significant amount of energy to heat water or air inside them. To optimise their energy usage, it is recommended to only run these appliances when they are fully loaded. Additionally, using lower temperature settings, such as 30°C, or eco settings can significantly reduce energy consumption without compromising cleaning performance.
Other high-energy appliances include kitchen appliances such as the hob, oven, kettle, and microwave. The oven, in particular, consumes more energy than the microwave, as it heats the air inside along with the food. The hob, used for cooking, also contributes to energy consumption. While the kettle is essential for boiling water, overfilling it can lead to unnecessary energy usage.
Heating and cooling systems also fall under high-energy appliances. Heating a home typically requires more energy than cooling it. Inefficient heating systems, such as older furnaces or boilers, can contribute significantly to energy consumption. Upgrading to high-efficiency furnaces, boilers, or heat pumps can improve energy efficiency, especially in colder climates. Additionally, maintaining consistent temperature control practices and installing programmable thermostats can help regulate temperatures and reduce energy waste.
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Inconsistent temperature control
Programmable Thermostat
Installing a programmable thermostat can help maintain a consistent temperature in your home throughout the day and night. With a programmable thermostat, you can set predetermined temperatures for different times of the day, eliminating the need for manual adjustments. This helps avoid temperature fluctuations that can result in higher electricity usage and costs.
Water Heater Temperature
Your water heater's temperature setting can significantly impact your electricity bill. Even when you're not using hot water, the heater will maintain the temperature you've set. Lowering the temperature to around 120 degrees Fahrenheit can help reduce electricity consumption without compromising on the hot water needs of your household.
Appliance Usage
Everyday appliances, such as washing machines and dishwashers, contribute significantly to energy usage. Using these appliances during off-peak hours and avoiding overfilling them can help reduce energy consumption. Additionally, consider using lower temperature settings, such as the eco setting, whenever possible, as heating water to higher temperatures requires more energy.
Insulation
Improving your home's insulation can also help regulate temperature and reduce energy usage. Ensure your attic is well-insulated to prevent warm air from escaping through the roof during winter. Weather-stripping on exterior doors, energy-efficient windows, and replacing door and window screens with glass panes can also enhance insulation and reduce the need for excessive heating or cooling.
Maintenance
Regular maintenance of your temperature control systems is essential. For example, issues with your water heater, such as a faulty cold water dip tube or a worn-out shower cartridge, can lead to inconsistent water temperatures. Addressing these problems promptly can help optimize energy usage and ensure a more consistent temperature.
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Overworked fridges and freezers
Fridge freezers are one of the few appliances in your home that are constantly running. They consume energy 24/7 to regulate the temperature and keep your food fresh. As a result, they can contribute significantly to your electricity bill.
There are several factors that can cause your fridge freezer to become overworked and consume more energy than necessary. One of the main factors is the size of the appliance. Larger appliances require more energy to maintain their temperature. If you are not using all the space, this can lead to wasted energy. It is important to choose a fridge freezer that is appropriately sized for your needs and to avoid overfilling it. Overfilling can make it difficult for the appliance to maintain the appropriate temperature, causing it to work harder and use more energy.
Another factor that can impact the energy consumption of your fridge freezer is the temperature setting. It is important to set the temperature according to the instructions in the owner's manual. Keeping the temperature too low can result in unnecessary energy usage. Additionally, the location of your fridge freezer can also affect its energy consumption. If it is placed in a warm area, it will have to work harder to maintain the desired temperature. Try to keep your fridge freezer in a cool, well-ventilated area away from direct sunlight or heat sources.
Proper maintenance of your fridge freezer is also crucial for optimizing its energy efficiency. Regularly clean the coils at the back of the appliance, as a build-up of dust and debris can insulate the coils and reduce their ability to dissipate heat effectively. Additionally, check the door seals regularly to ensure they are sealing properly. If the seals are damaged or worn out, cold air can escape, causing the appliance to work harder to maintain the desired temperature.
Finally, consider upgrading to an energy-efficient model. Older fridge freezers may not have the same energy-saving features as newer models, and their insulation may degrade over time, leading to increased energy consumption. By replacing your old appliance with an energy-efficient alternative, you can significantly reduce your electricity usage and lower your utility bills.
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Frequently asked questions
There are many reasons for large electricity drain in a house. Some of the most common reasons are:
- Electronic gadgets on standby mode. Even when turned off, as long as they are plugged in, these devices continue to operate behind the scenes, performing updates and downloads.
- Old appliances that are not ENERGY STAR® certified.
- Overworked appliances such as washing machines, dishwashers, and refrigerators that are overfilled or not run at full capacity.
You can identify the culprit appliance by systematically turning off circuits at your electrical box and observing the effect on your meter. After locating the circuit pulling the most power, unplug devices to find the appliance guzzling electricity. Alternatively, you can use an ammeter to measure electricity in amperes.
Here are some ways to lower your electricity bills:
- Only run your dishwasher and washing machine when they are completely full.
- Wash your clothes on a lower temperature setting or use the eco setting.
- Dry your clothes outside instead of using a dryer.
- Install a programmable thermostat to maintain your home at the optimal temperature.
- Lower your water heater's temperature setting.
