5 Star AC Power Consumption: Everything You Must Know Before Buying
When you are investing in an air conditioner, energy efficiency should be the first thing on your list. Your electricity bills can escalate quickly in the summer season, and that’s where a 5 star AC comes into play. If you are looking for information on 5 star AC power consumption, this article will give you a clear idea of how much electricity it consumes, how much it will cost you, and if it’s worth spending your money on because being cool doesn’t have to be hot on your pocket!
Let’s get into the details.
What Do You Mean by 5 Star Rating?
In India, the Bureau of Energy Efficiency (BEE) gives stars starting from 1 star up to 5 stars to air conditioners. 5 star AC is the most energy-efficient one. It uses less electricity to provide the same cooling effect.
In simple words:
Higher star rating = Lower electricity consumption.
So, obviously, the power consumption of 5 star AC will be less compared to 3 star AC or 2 star AC.
5 Star AC Power Consumption Per Hour
The power consumption of the AC depends on its tonnage and whether it is a split or window AC. The approximate power consumption is given below:
| AC Capacity | Average Power Consumption Per Hour | Monthly Units (8 hrs/day approx.) |
| 1 Ton 5 Star AC | 0.8 – 1.0 units | 190 – 240 units |
| 1.5 Ton 5 Star AC | 1.1 – 1.3 units | 260 – 310 units |
| 2 Ton 5 Star AC | 1.6 – 1.9 units | 380 – 450 units |
It’s important to know that the above power consumption may differ slightly depending on the brand, use of inverter, insulation of the room, and the temperature setting of your AC.
5 Star AC Power Consumption of Different Tonnage Models
| AC Capacity | Power Consumption Per Hour | Room Size (Approximately) |
| 1 Ton | 0.8 – 1.0 units/hour | Up to 120 sq.ft. |
| 1.5 Ton | 1.1 – 1.3 units/hour | Up to 120- 180 sq. ft. |
| 2 Ton | 1.6 – 1.9 units/hour | Up to 180-300 sq. ft. |
| 2.5 Ton | 2.0 – 2.3 units/hour | Up to 300- 400 sq. ft. |
Keep in mind that running a higher tonnage AC than your room actually needs will increase power consumption unnecessarily. Check our guide on AC tonnage for room size to make sure you’re not overpaying on your electricity bill every month.
5 Star Split AC Power Consumption
The power consumption of a 5-star split AC is lower compared to a window AC with the same capacity.
Advantages:
- Improved cooling performance.
- Less noise.
- Less electricity consumption in the long run.
- Latest inverter technology available.
Split ACs are the most preferred choice for home use.
5 Star Window AC Power Consumption
The power consumption of a 5-star window AC is slightly higher compared to split ACs but is energy-efficient nonetheless.
Advantages:
- Less expensive to buy
- Easy to install
- Suitable for small rooms
If budget is a constraint and installation is a concern, window ACs are still a good choice.
Installation of an AC is one of the trickiest part as well as the most important part as wrong installation can damage the AC or affect its working, so to get the best installation in the city go no further and book your appointment with NoBroker Installation and get professional to do the job.
Does It Matter That a 5-Star AC Is an Inverter or Non-Inverter Model?
Yes, it does make a difference whether the 5 star AC is an inverter or non-inverter type, even if both have the same star rating.
It is a common misconception that if an AC has a 5 star rating, it will necessarily be an inverter AC. This is not necessarily the case. Let’s understand the difference.
5 Star Inverter AC
- Compressor speed varies automatically.
- Keeps a steady temperature.
- Less power variation.
- More long-term power savings.
- Less noise.
In practical use, a 5 star inverter AC will consume less power in the long run since it does not turn the compressor on and off constantly.
5 Star Non-Inverter AC
- Compressor always runs at a constant speed
- Turns on and off frequently
- Mildly higher power surges
- Less initial investment
Although it is 5-star rated, a non-inverter AC will consume slightly more power than an inverter AC in practical use.
Which One Uses Less Power?
In general, the 5 star inverter AC uses less power than the 5 star non-inverter AC. This is particularly true if:
- You use the AC for more than 6-7 hours a day.
- The room temperature varies frequently.
- You prefer a steady cooling effect without frequent power surges.
How Much Does It Cost to Run a 5 Star AC?
Let’s do a simple calculation:
If your unit rate is ₹8 and your 1.5 ton 5 star AC consumes 1.2 units of electricity per hour:
- 1.2 units × ₹8 = ₹9.6 per hour
- Running 8 hours a day = ₹76.8 per day
- Per month (30 days) ≈ ₹2,304
This is much lower than 3 star or non-inverter ACs. And if you want specific calculations, you can use NoBroker AC Electric Consumption Calculator to get calculations specific to your model.
Factors That Affect 5 Star AC Power Consumption
No matter how efficient your AC is, it will consume more power if:
- The temperature is set below 20°C
- The room is not well-insulated
- The filters are not cleaned regularly
- The size of the AC is not appropriate for the size of the room
- The room receives direct sunlight
- Setting your AC between 24°C and 26°C will make it more efficient and use less power.
Is a 5 Star AC Worth Buying?
Yes, and especially if:
- Your daily usage is more than 6 hours a day.
- Your electricity charges are high in your area.
- You are looking for long-term savings.
- You are interested in eco-friendly appliances.
Although the cost is higher, it is a financially sound decision in the long term, as it saves money in 4-5 years.
Conclusion
Knowledge about the power consumption of 5 star AC will enable you to make a more informed and economical purchase decision. Whether it is a 1 ton, 1.5 ton, 2 ton, or 2.5 ton AC, a 5 Star AC will always provide you with better cooling performance along with lower power consumption. Although the upfront cost may be marginally higher, the long-term benefits of saving on power bills and preventing energy wastage make it a sensible and future-proof option for Indian homes.
FAQ’s
1. How many units will a 5-star AC use in 8 hours?
Ans- A 5-star AC will use around 6 to 15 units in 8 hours, depending on the tonnage of the AC.
1-ton AC: 6-8 units
1.5-ton AC: 8-10 units
2-ton AC: 12-15 units
The usage may vary depending on the temperature and room size.
2. How much of the electricity bill will be incurred due to the usage of a 5-star AC in a month?
Ans- If used for 8 hours a day, a 5-star AC will incur a bill of around ₹1,800 to ₹4,500 a month, depending on the capacity of the AC and the electricity charges. The higher capacity AC will use more units.
3. Is 5-star AC suitable for daily use in India?
Ans- Yes. A 5-star AC is the best choice for daily use, especially in Indian summers. It uses less electricity and cuts down the electricity bill in the long run compared to other ratings.
4. Does inverter AC use less electricity than non-inverter AC?
Ans- Yes. An inverter AC compresses the refrigerant depending on the cooling requirement, which cuts down the wastage of electricity and thus uses less electricity.
5. Which of the ACs uses less power, 3 star or 5 star?
Ans- A 5 star AC uses much less power compared to a 3 star AC. Eventually, the difference in electricity consumption will be quite large.
6. How much power does a 1.5 ton 5 star AC use in a day?
Ans- If it is used for 8 hours, a 1.5 ton 5 star AC uses approximately 8 to 10 units of electricity in a day.
7. What is the difference between a 5 star inverter AC and a non-inverter AC?
Ans- A 5 star inverter AC uses variable compressor speed and ensures steady cooling with less power consumption. A non-inverter AC uses constant speed and switches on and off frequently, which may lead to increased power consumption.
8. Does using the AC at 24 degrees cut down power consumption?
Ans- Yes. Using your AC at 24°C to 26°C helps in efficient power consumption and cuts down electricity consumption.
9. Is it worth purchasing a 5 star AC for home?
Ans- Yes. Although the cost of the AC is higher, it saves money in the long run as it consumes less electricity.
10. How to calculate the power consumption of 5 star AC in units?
Ans- Multiply the wattage of the AC in kW by the number of hours used.
For example:
1.2 kW × 8 hours = 9.6 units per day.