How to Choose an Energy-Efficient Air Conditioner

Are you looking to buy an Energy-Efficient AC and are confused about how to choose it? We hear you, and we have a detailed article here which explains how to choose an Energy Efficient Air Conditioner. 

We all have started using AC, and most of us can’t imagine our life without one. But the electricity bill is inevitable. Here is where Energy Efficient ACs come into play.

What is an Energy Efficient AC?

An Energy-Efficient AC is nothing but an AC that consumes a lot less Power than a traditional AC and works efficiently, thus saving money on electricity bills.

How to Choose an Energy-Efficient Air Conditioner?

There are a lot of factors that determine the power consumption of an AC. They are:

1. Star Ratings

Star Ratings are one of the most important factors to consider when picking an AC for yourself. Star Ratings are the standards set by the Bureau of Energy Efficiency (BEE), which the Government approves of India. 

You might have noticed appliances with Star Ratings. The more the Star ratings, the lesser the Power it consumes. As simple as that. 

The Star Ratings range between 1 Star to 5 Star, with 1 Star being the Highest Power consuming AC and 5 Star being the lowest Power consuming AC.

When it comes to the price point, the 5 stars AC are more expensive than the others as they save a lot more money on electricity bills. They are more of an investment, and you save way more money than you spend on them, so it is a thumbs up from our end.

2. ISEER Value

ISEER value stands for Indian Seasonal Energy Efficiency Ratio, a Grading system set by the Bureau of Energy Efficiency India. It is the value of the ratio of the total heat removed from the room to the total energy that the AC consumes.

Say, for example, your AC consumes about 12,000 BTU per hour, and it consumes about 1000 watts. Now divide the 12,000 BTU value by the 1,000 Watts. The answer you get is the ISEER value. Here you get 12, so the ISEER rating of your AC is 12.

So the more the ISEER value, the less energy it consumes. So if you are looking for an Energy-Efficient AC, then go ahead and look for higher ISEER ratings.

The average ISEER rating that saves you electricity is 6. So anything in that range is a good value. Read more on Highest ISEER Rating AC In India.

3. Convertible Modes

Convertible models are nothing but changing the efficiency of the running capacity of the AC according to your convenience. ACs does come with many convertible modes like 4 in 1 convertible model, 7 in 1 convertible mode, etc.

Let me break it down for you.

Say, for example, you have a 1.5 ton AC, and you are all alone in the room. The AC has the capacity of 1.5 tons to cool the room, which is too much for one person. So with convertible modes, it lets you change the ton of the AC by just clicking a button. For example, you can change the capacity to 0.8 tons, and it acts as if it is an 0.8 ton AC and cools the room accordingly; that way, it saves you a lot of money here by consuming way less Power than making the AC work in its 100% capacity.

Some ACs let you change the working capacity to even 120% as they instantly cool the room. It is suitable if you have a party or a family gathering and a lot of people are pleasant in the room.

4. Size

As much as most people do not consider the room’s size and the AC’s size a bigger factor, it considerably affects your Power consumption.

But how?

If you have a small room and a 1.5 ton AC, the AC runs with its fuller capacity and cools the room more than required. So you end up spending a lot of Power here.

Make sure to choose the right size AC for your room. First, measure your room and then go ahead and purchase your AC.

5. Modes

What do I mean by modes?

A few AC comes with Energy saving or Eco Mode, where you can easily turn on the mode, and it automatically reduces the Power it consumes and provides cooling with less Power. 

With the help of the modes, you can also easily run your AC with an inverter even with other appliances when there is a power cut, as it consumes way less Power than traditional modes.

6. Timer 

The timer feature is yet another underrated feature for power consumption. We might turn ON the AC and forget to turn it off. So the AC ends up running the entire night, which definitely spikes your electricity bills to a greater extent if done frequently. 

So if you set a timer for 4 hours or 5 hours or as many hours as you need, it automatically turns Off by itself, and you don’t have to worry about the power consumption.

7. Ideal Temperature

It is suggested by the BEE to maintain the temperature of the AC to 24 degrees Celsius. They have researched and found that 24-degree Celsius is the perfect temperature for humans, especially for us Indians, as they are closer to our normal human body temperature, which is around 38 degrees Celsius. 24 degrees celsius is much closer to our natural body temperature than 16 and 18 degrees, 

They have also stated that, by keeping the temperature at 24 degrees Celsius, there is a reduction of 24% of power consumption annually. Crazy right? So make sure to avoid keeping the temperature at 18 or 16 degrees often.


We really hope you enjoyed reading the article and found it helpful. We have provided as much as the info needed for you to choose the right Energy Efficient AC for you.

Our suggestion is to Choose a 5 Star AC, which reduces the power consumption to a considerable level, and it is easy for you to choose the right product too without much concussion. As 5 Star ACs do come with high ISEER value, most 5 Star ACs also have convertible modes. So it is a win-win situation.

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Gayathri V
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