Top 5 Energy-Efficient Air Conditioners of 2025 for Maximum Cooling: High Cooling & Low Power Consumption
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For anyone looking for powerful cooling with less power consumption, this guide reviews the best air conditioners in 2025 from top brands like Voltas, Daikin, and Haier. You will be able to see various of the best options available online for your home.
An air conditioner is a must-have home appliance for coping with hot and humid weather in India. The 1.5-ton split air conditioner is an excellent choice for medium-sized rooms because it can deliver cooling for a wide variety of advanced features and energy-efficient modes, providing powerful cooling while consuming low power. The top brands like Haier, Daikin, and Voltas offer 1.5-ton split AC models with three-star and five-star ratings. To help you with the decision, here are the best AC models of 2025, covering energy efficiency, noise level, and overall performance.
S.No.
Top Products
Feature
Rating
01
Haier 1.5 Ton 5 Star Triple Inverter Split AC
HD Filter
3.7
02
Voltas 1.5-tonne 5-star inverter split AC
Super Dry Mode
4.0
03
Daikin 1.5 Ton 3 Star Inverter Split AC
Self-Diagnosis
3.9
04
Blue Star 1.5 Ton 5 Star, Wi-Fi Smart Inverter Split AC
Anti-Corrosive Blue Fins
3.8
05
Godrej 1.5 Ton 5 Star, 5-In-1 Convertible Cooling Inverter Split AC
i-Sense Technology
3.7
Haier 1.5 Ton 5 Star Triple Inverter Split AC
This Haier 1.5-tonne AC has a Triple Inverter+ compressor that intelligently optimizes its power based on the heat load for maximum energy efficiency. Its 7-in-1 convertible cooling mode and a supersonic cooling mode mean you can cool a room in 10 seconds, regardless of the ambient temperature. Plus, a super micro antibacterial filter provides cleaner, healthier air.
Specifications
Brand: Haier
Model: HSU18K-PYSS5BN-INV
Energy Efficiency: 5-star
Capacity: 1.5 Tonnes
Annual Energy Consumption: 744 Kilowatt Hours
Noise Level: 34 dB
Wattage: 1340 Watts
Pros
Hyper-strong PCB
Frost self-clean
4-way swing
Supersonic cooling
Cons
Can be somewhat noisy during operation
Voltas 1.5-ton 5-star inverter split AC
This Voltas 1.5-ton air conditioner has been built for extreme heat conditions and humidity, and it has the ability to cool in a more adaptable manner. It comes with 5 fan speeds to customize the airflow as well as a superdry mode, which works as a dehumidifier, while an anti-corrosive coating protects essential coils against rust, corrosion, and long-term performance.
Specifications
Brand: Voltas
Model: 185V Vectra CAR
Capacity: 1.5 Tons
Annual Energy Consumption: 4850 Watts
Noise Level: 38 dB
Voltage: 230 Volts
Wattage: 4850 Watts
Pros
5-speed fan function
100% Copper condenser
Anti-freeze thermostat
Super dry mode
Cons
Not very water-efficient
Daikin 1.5 Ton 3 Star Inverter Split AC
Daikin air conditioners provide a fantastic balance of affordability and energy efficiency. This model comes equipped with Dew Clean technology, which cleans the indoor unit's heat exchanger to maximize airflow and create consistent cooling. Then, a PM 2.5 filter extracts the finer air particles, delivering purer indoor air, together with a built-in stabilizer for stable performance.
Specifications
Brand: DAIKIN
Model: MTKL50U
Energy Efficiency: 3-star
Capacity: 1.5 Tons
Annual Energy Consumption: 966.47 Kilowatt Hours Per Year
Noise Level: 30 dB
Wattage: 966.47 Kilowatt Hours
Pros
3D Air Flow
Self-Diagnosis
PM 2.5 Filter
Stabiliser inside
Eco-friendly green refrigerant
Cons
Remote control operation could be improved
Blue Star 1.5 Ton 5 Star, Wi-Fi Smart Inverter Split AC
This Blue Star smart AC is built for contemporary living and comes with a one-of-a-kind 5-in-1 convertible cooling mode that gives you five different capacities of cooling, allowing riders to truly customize their comfort level. With AI Pro technology, it senses temperature conditions from both inside and outside to provide optimal performance. It is Wi-Fi enabled so you can use voice commands or the smart scheduler.
Specifications
Brand: Blue Star
Model: IC518ZNURS
Capacity: 1.5 Tons
Annual Energy Consumption: 783.33 Kilowatt Hours
Noise Level: 45 dB
Special Features: 4-Way Swing, WiFi Enabled
Wattage: 5110 Watts
Pros
Voice command technology
Smart scheduler
5-in-1 cooling mode
4-way swing
Value for money
Godrej 1.5 Ton 5 Star, 5-In-1 Convertible Cooling Inverter Split AC
This Godrej air conditioner provides heavy-duty cooling for extreme humidity and heat all summer long. Its innovative i-Sense technology senses the temperature around you to provide targeted cooling exactly where you need it. A pure air filter removes dust and bad odors, while the self-clean technology prevents microbial growth. Ultimately, all filtration and decontamination ensures you can obtain hygienic and comfortable air circulation.
Specifications
Brand: Godrej
Model: AC 1.5T EI 18II5T WZS Split 5S
Capacity: 1.5 Tons
Annual Energy Consumption: 728.31 Kilowatt Hours Per Year
Noise Level: 38 dB
Installation Type: Split System
Pros
Heavy-duty cooling
i-Sense Technology
Power-saving inverter
Cons
Has received mixed opinions on its noise level
Comparison of Top AC Models (2025): Energy Efficiency, Cooling Power and Noise Level
Top Air Conditioner Models (Capacity)
Energy Efficiency
Cooling Power
Noise Level
Haier HSU18K-PYSS5BN-INV (1.5 Tons)
5 Star
1340 Watts
34 dB
Godrej AC 1.5T EI 18II5T WZS Split 5S (1.5 Tons)
5 Star
4.8 Kilowatts
38 dB
Daikin MTKL50U (1.5 Tons)
3 Star
966.47 Kilowatt Hours
30 dB
Blue Star IC518ZNURS (1.5 Tons)
5 Star
5110 Watts
45 dB
Voltas 185V Vectra CAR (1.5 Tons)
5 Star
4850 Watts
38 dB
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