As summer approaches and temperatures rise, many people seek ways to stay cool without incurring high electricity bills. One simple yet effective strategy gaining traction is the "24°C AC hack." This method involves setting your air conditioner to a constant 24 degrees Celsius (75 degrees Fahrenheit), a seemingly small adjustment that can lead to significant energy savings.

The Bureau of Energy Efficiency and other energy experts recommend 24°C as an optimal temperature for balancing comfort and energy efficiency. Setting your AC to lower temperatures, such as 20-21°C, won't cool the room faster; it will only cause the unit to work harder and consume more power. In fact, it's been shown that for every degree you lower the thermostat below 24°C, energy consumption can increase by 5-6%.

Here's how the 24°C AC 'hack' works and why it's effective:

• Reduced Energy Consumption: Maintaining a temperature of 24°C prevents the AC from overworking to reach and maintain a much lower temperature. The compressor doesn't have to run as often or as intensely, resulting in less energy used.
• Optimal Comfort: 24°C is generally considered a comfortable temperature for most people. It allows the body to adjust naturally without feeling overheated or too cold.
• Extended AC Lifespan: By reducing the strain on the air conditioner, the 24°C setting can help prolong its lifespan. Overworking the AC can lead to wear and tear, potentially causing breakdowns and costly repairs.
• Environmental Benefits: Lower energy consumption translates to a smaller carbon footprint. By using less electricity, you reduce greenhouse gas emissions and contribute to slowing climate change.

Beyond simply setting the thermostat to 24°C, several other tips can enhance the effectiveness of this energy-saving strategy:

• Use Ceiling Fans: Ceiling fans help circulate cool air, allowing you to set the AC temperature a few degrees higher without sacrificing comfort. Ensure the fan is spinning counterclockwise during summer to create a cooling breeze.
• Seal Air Leaks: Seal any gaps around windows and doors with weather stripping to prevent cool air from escaping and hot air from entering. This ensures the AC doesn't have to work harder to maintain the desired temperature.
• Clean Air Filters: Regularly clean or replace your AC's air filters. Dirty filters restrict airflow, making the unit less efficient.
• Use a Programmable Thermostat: A programmable thermostat allows you to set different temperatures for different times of the day. For example, you can set the AC to 27°C or turn it off when you're away from home or asleep.
• Close Doors and Windows: When the AC is running, keep doors and windows closed to prevent hot air from entering and cool air from escaping.
• Shade Your Home: Use curtains, blinds, or awnings to block direct sunlight, which can heat up your home and force the AC to work harder. Planting trees around your home can also provide natural shade.
• Regular Maintenance: Schedule regular maintenance for your AC unit to ensure it's running efficiently. This includes checking refrigerant levels and cleaning coils.
• Consider a Smart Thermostat: Smart thermostats learn your habits and automatically adjust the temperature to maximize energy savings and comfort.

By implementing the 24°C AC 'hack' and incorporating these additional energy-saving tips, you can significantly reduce your electricity bill this summer while staying comfortable and contributing to a more sustainable environment.