As energy costs continue to rise, finding ways to reduce power consumption without compromising comfort becomes increasingly important. Air conditioners, essential for maintaining a cool and comfortable home environment during hot weather, can significantly impact your energy bills. By understanding how air conditioners work and implementing a few simple strategies, you can achieve substantial power savings. This article will guide you through practical steps to enhance your air conditioner’s efficiency, reduce energy consumption, and lower your electricity costs.

1. Increase Temperature Settings

Raising your air conditioner’s thermostat by just 1 degree Celsius can save up to 10% on your energy consumption. This small adjustment significantly reduces the workload on the unit, resulting in lower power usage. By setting your thermostat to a slightly higher temperature, your air conditioner cycles on and off less frequently, which not only saves energy but also extends the lifespan of the unit. For example, if you typically set your thermostat to 22 degrees, increasing it to 23 degrees can lead to noticeable savings on your energy bill while still maintaining a comfortable indoor environment.

2. Utilise Energy-Saving Modes

Many modern air conditioners come equipped with energy-saving or eco modes designed to optimise energy use. These modes adjust the cooling process to use less power while maintaining a comfortable temperature. When activated, the air conditioner may run the compressor and fan at lower speeds, reducing overall energy consumption. Additionally, eco modes often include features such as automatic temperature adjustments and sleep timers, which help to minimise energy usage during periods of low activity or at night. Always refer to your unit’s manual to understand how to activate and make the most of these energy-saving features.

3. Regular Maintenance

Maintaining your air conditioner is crucial for ensuring it operates efficiently. Regular maintenance tasks include cleaning or replacing filters, checking for any blockages, and ensuring the unit is in good working condition. Dirty filters can restrict airflow, causing the air conditioner to work harder to cool your home, which increases energy consumption. It’s recommended to clean or replace filters every one to three months, depending on usage and the type of filter. Additionally, inspect the outdoor unit for debris, and clean the coils to improve heat exchange efficiency. Scheduling annual professional maintenance checks can also help identify and rectify any potential issues before they lead to higher energy use or costly repairs.

4. Use Fans in Conjunction

Using ceiling or portable fans in conjunction with your air conditioner can help distribute cool air more evenly throughout the room, allowing you to set your air conditioner to a higher temperature without sacrificing comfort. Fans use significantly less power compared to air conditioning units and can create a wind-chill effect that makes you feel cooler. For instance, setting your air conditioner to 26 degrees while using a fan can provide the same comfort level as setting the air conditioner to 23 degrees. Additionally, fans can help disperse cool air to areas that are typically harder to reach, ensuring a more uniform temperature throughout your home.

5. Seal and Insulate

Ensuring your home is well-sealed and insulated is essential for reducing the workload on your air conditioner. Proper sealing prevents cool air from escaping and hot air from entering, which helps maintain a stable indoor temperature with less effort from your air conditioning unit. Inspect windows, doors, and other potential gaps for air leaks, and use weather stripping or caulking to seal any openings. Additionally, consider improving insulation in your walls, attic, and floors to enhance your home’s overall energy efficiency. Proper insulation not only keeps your home cooler in the summer but also warmer in the winter, providing year-round energy savings. By addressing these areas, you can significantly reduce your air conditioner’s energy consumption and improve overall comfort.

6. Limit Heat-Generating Activities

During the hottest parts of the day, limiting the use of heat-generating appliances such as ovens, stoves, and dryers can help your air conditioner cool your home more efficiently. These appliances produce significant amounts of heat, which can increase the indoor temperature and force your air conditioner to work harder to maintain a comfortable environment. Instead, try to use these appliances during the cooler parts of the day, such as early morning or late evening. Additionally, consider using alternative cooking methods, such as microwaves or outdoor grills, which generate less heat. By reducing indoor heat sources, you can help your air conditioner operate more efficiently and save energy.

7. Use Programmable Thermostats

Programmable thermostats are a valuable tool for managing your air conditioner’s energy usage. These devices allow you to set a schedule for your air conditioner to follow, ensuring it only runs when necessary. For example, you can program the thermostat to raise the temperature while you are at work or asleep and lower it before you return home or wake up. This automatic adjustment prevents the air conditioner from running unnecessarily, thereby saving power. Some programmable thermostats also offer advanced features, such as remote control via smartphone apps, adaptive learning to predict your preferences, and integration with other smart home devices. By using a programmable thermostat, you can optimise your air conditioner’s operation and reduce energy consumption.

8. Close Blinds and Curtains

Keeping blinds and curtains closed during the day can significantly reduce the amount of sunlight entering your home, which helps to keep indoor temperatures lower. Sunlight streaming through windows can quickly heat up a room, causing your air conditioner to work harder to maintain a cool environment. By blocking out the sun’s rays, you can prevent this unwanted heat gain and reduce the strain on your air conditioner. For maximum effectiveness, use light-coloured or reflective window coverings that can deflect sunlight. Additionally, consider installing thermal or blackout curtains, which provide extra insulation and further reduce heat transfer. This simple practice can lead to noticeable energy savings and improved comfort.

9. Upgrade to an Energy-Efficient Unit

If your air conditioner is old or outdated, upgrading to a more energy-efficient model can result in significant power savings over time. Modern air conditioning units often have higher energy efficiency ratings, such as Energy Star certification, which indicates they use less energy to achieve the same level of cooling as older models. When selecting a new unit, look for features like variable speed compressors, which adjust the cooling output based on demand, and advanced filtration systems that improve air quality while maintaining efficiency. Additionally, consider the size and capacity of the unit to ensure it is appropriately matched to your home’s cooling needs. Investing in an energy-efficient air conditioner can lower your energy bills, reduce your carbon footprint, and enhance overall comfort.

10. Optimal Usage Timing

Operating your air conditioner during off-peak hours when electricity rates are lower can help you save on energy costs. Many energy providers offer time-of-use plans, which charge different rates based on the time of day. By taking advantage of these lower rates, you can reduce your overall energy expenses. To maximise savings, try to run your air conditioner during off-peak hours, typically early morning, late evening, or overnight. Additionally, pre-cooling your home before peak hours begin can help maintain a comfortable temperature without continuous air conditioner operation during more expensive times. Understanding your energy provider’s rate schedule and adjusting your usage patterns accordingly can lead to significant cost savings and more efficient energy use.

By implementing these strategies, you can effectively reduce the power consumption of your air conditioner, leading to lower energy bills and a more sustainable use of resources.

Man installing air conditioner in Perth - Everest HVAC & R
Man installing air conditioner in Perth Everest HVAC R

Understanding How It All Works

To effectively save power when using your air conditioner, it’s essential to understand the mechanics and principles behind its operation:

Temperature Settings and Energy Consumption

The temperature you set on your air conditioner directly impacts its energy usage. Air conditioners work by removing heat from your home and expelling it outside. The lower the temperature setting, the harder the unit has to work to achieve and maintain that temperature. Increasing the thermostat by just 1 degree Celsius can reduce energy consumption by approximately 10%, as the unit doesn’t need to run as frequently or as long.

Efficiency of Different Modes

Air conditioners often come with various modes, such as cool, fan, dry, and eco. Each mode has a different impact on energy consumption:

  • Cool Mode: This is the standard mode for most air conditioners, focusing on reducing the temperature to the set level.
  • Fan Mode: Circulates air without additional cooling, using less power than cool mode.
  • Dry Mode: Reduces humidity without significantly lowering the temperature, using less energy than cool mode.
  • Eco Mode: Optimises the cooling process to use the least amount of energy while maintaining a comfortable temperature.

Importance of Maintenance

Regular maintenance ensures that your air conditioner operates efficiently. Dust and debris can clog filters and coils, making the unit work harder to cool your home. Clean filters allow for better airflow and efficiency, directly reducing power consumption.

Airflow and Insulation

Good airflow and proper insulation are crucial for efficient air conditioner operation. If your home is well-insulated, it retains cool air better, reducing the workload on your air conditioner. Proper sealing around doors and windows prevents cool air from escaping and warm air from entering, maintaining a consistent indoor temperature with less effort from your air conditioning unit.

Role of External Factors

External factors like outdoor temperature and humidity levels can influence how hard your air conditioner needs to work. During extremely hot or humid days, the unit has to remove more heat and moisture from the air, increasing energy usage. Using ceiling or portable fans to circulate air and keeping blinds or curtains closed can mitigate some of these external effects, enhancing overall efficiency.

By understanding these aspects of air conditioner operation, you can make informed decisions to optimise energy use and achieve significant power savings.


By implementing these practical strategies, you can significantly reduce the power consumption of your air conditioner, leading to lower energy bills and a more sustainable home environment. Simple adjustments like raising the thermostat temperature, utilising energy-saving modes, and performing regular maintenance can make a substantial difference. Additionally, leveraging fans, sealing and insulating your home, limiting heat-generating activities, and using programmable thermostats all contribute to enhanced efficiency.

When it comes to upgrading to an energy-efficient unit or needing professional maintenance services, Everest HVAC & R stands out as the best company for all your air conditioning needs in Perth. With their expertise and commitment to quality, Everest HVAC & R ensures that your air conditioning system operates at peak efficiency, providing you with comfort and savings year-round. Trust Everest HVAC & R for reliable, professional service and optimal air conditioning performance.