Normal Split AC vs Inverter AC: Which Saves More Electricity?
If you are planning to buy a new AC in Hyderabad, you are probably wondering if paying extra for an "Inverter AC" is actually worth it. How much electricity does it really save compared to a normal (non-inverter) split AC?
1. How a Normal Split AC Works
A normal (fixed-speed) AC compressor only has two modes: 100% ON or 100% OFF. When you set the temperature to 24°C, the compressor runs at maximum power until the room reaches 24°C, then it shuts off completely. When the room warms up to 26°C, it kicks back on at maximum power. This constant starting and stopping consumes a massive amount of electricity.
2. How an Inverter AC Works
An inverter AC works like the accelerator pedal in a car. It has a variable-speed compressor. When you set the AC to 24°C, it runs at high speed to cool the room quickly. Once the room reaches 24°C, it does not shut off; instead, it slows down to a steady, low-power state just to maintain the temperature. This smooth operation eliminates power spikes.
3. The Real-World Electricity Savings
In Hyderabad's summer, if you run your AC for 8 hours a night:
- Normal 1.5 Ton 3-Star AC: Consumes about 1.5 to 1.8 Units per hour. That's around 12-14 Units per night.
- Inverter 1.5 Ton 5-Star AC: Consumes about 0.7 to 0.9 Units per hour once the room is cooled. That's around 6-8 Units per night.
Conclusion: An inverter AC uses roughly 30% to 40% less electricity than a normal AC.
4. Is It Worth The Extra Cost?
An inverter AC usually costs ₹5,000 to ₹8,000 more upfront than a normal AC. However, if you use your AC for more than 4 hours a day, the electricity savings will recover that extra cost within the first 8 to 12 months. After that, you are saving thousands of rupees every year.