Energy efficiency is key!
The electricity usage depends on the aircon’s size (BTU), type, and how long it runs. A standard 9,000 BTU inverter aircon uses around 0.8 to 1.2 kWh per hour, while larger units (18,000+ BTU) can use 1.5–2.5 kWh/hour. Inverter models are more energy-efficient because they regulate power rather than constantly turning on/off. To lower energy use, set your thermostat to 22–24°C, close doors and windows, and clean your filters regularly.