5 Techniques to Save on Air Conditioning Electricity Bills in Summer: How to Use Air Conditioning Most Efficiently

As the summer season arrives " electricity bills " become a nightmare for many households, especially with air conditioners being the main energy consumers. Many people look forvarious ways to fight against high electricity bills during the hot season.But did you know that cooling your room efficiently while saving money involves more than just setting the temperature at 25 degrees Celsius?

Thairath Online recommends 5 simple air conditioning saving methods that help you use your air conditioner at full efficiency while consuming the least electricity.

Here are 5 easy summer air conditioning saving tips that truly save on your electricity bill.

Saving electricity when using air conditioning isn't about "enduring the heat" but about "managing the cool air" to minimize energy loss. This can be easily done with the following techniques.

1. Use the "27 degrees + fan" formula instead of lowering the air conditioner temperature.

Many people are used to setting the air conditioner to 23-24 degrees to cool quickly, but did you know that every 1-degree increase can save about 10% electricity? The Electricity Generating Authority of Thailand recommends setting the temperature at 26-27 degrees Celsius and using a fan. The fan helps increase airflow, making your body feel as cool as if it were 24 degrees, while the air conditioner's compressor doesn't have to work as hard.

2. Perform "Deep Cleaning" on both indoor and outdoor coils.

Cleaning the air conditioner isn't just about cleaning the filter (which you can do monthly yourself) but also calling a technician every 6 months for a thorough cleaning to remove dust deeply embedded in the indoor coil. Importantly, the outdoor coil must be cleaned as well. If the outdoor coil is dirty, the air conditioner can't release heat properly, forcing the compressor to work harder and consume much more electricity.3. Use "Dry Mode" on high humidity days.

Many overlook the droplet icon mode (Dry Mode). Reducing humidity makes you feel more comfortable without lowering the temperature. On rainy or muggy days when it’s not very hot, turning on Dry Mode helps the compressor work less because it focuses on condensing moisture rather than full cooling (Cool Mode), which saves energy over time.

4. Make good use of "Sleep Mode."

During deep sleep, the human body’s temperature drops and requires less cooling. Using Sleep Mode allows the air conditioner to gradually raise the temperature by 1-2 degrees automatically after you have been asleep for 1-2 hours. During this unconscious period, the unit saves significant electricity throughout the night without compromising sleep quality.

5. Choose the right BTU size for your room.

Choosing the BTU (a unit measuring cooling or heating capacity) for your air conditioner can often be a mistake. If the BTU is too low, the compressor runs at full speed constantly to meet the cooling target. If it’s too high, the air conditioner cycles on and off frequently, causing moisture buildup and increased power consumption during startup. It is recommended to consult a technician to select an air conditioner size suitable for your room.

Saving on air conditioning electricity bills during summer isn't difficult if you understand how the unit works, especially during periods

when electricity bills for air conditioning can spike, such as in April 2026 when the heat index reaches dangerous levels.Many may use air conditioning more than usual during this time. Therefore, knowing a few small tips on saving air conditioning electricity can also help reduce your bills.