How to calculate the energy consumption by Air Conditioner (AC) load? For example if the power rating of AC is 1000 W and operated for 12 hours, then we will simply multiply time and power to calculate the energy consumption. E= 12000 Watt-hour.

How do I calculate my AC power consumption?

To get the energy consumption (kWh), simply multiply the appliance wattage (kW or W) by the number of hours you use. For example, if you are using a 300W air conditioner for 4 hours per day, then you are consuming about 1200Wh or 1.2kWh per day.

How much power does an AC consume?

An air conditioner’s electricity consumption depends on its EER rating. The 5-star ACs are more energy-efficient than a 3-star AC unit. The electricity consumption of a 5-star AC (1.5 tons) is approximately 1.5 units per hour, whereas a 3-star AC (1.5 tons) consumes 1.6 units every hour.

How do you calculate power consumption?

To calculate power consumption of any appliance, you have to multiply it’s wattage by the number of hours it is being used (operational hours). For example, a 1000 watt electric iron running for one hour will consume (1000 watt X 1 hour) 1000 watt hour or 1 kilowatt hour (kWh) of electricity.

How many watts does an air conditioner use per hour?

Generally speaking, however, you can expect a central air conditioner to use between 3000 and 3500 watts per hour. Portable units use between 2900 and 4100 watts per hour while window units range between 900 and 1440.

How many watts does a 2.5 ton air conditioner use?

A 2.5 ton air conditioner is equivalent to 30,000 BTU per hour which is also equivalent to 8,792.1333 Watts. Therefore, a 2.5 ton air conditioner uses 8.792. 1333 Watts.

How many watts does a 24000 BTU air conditioner use?

The power consumption of 24,000 BTU Air Conditioners is less efficient than their smaller counterparts, with an EER range of between 8.5 and 12.5 for new units. They usually draw 2,500 to 2,823 watt.

How many watts does a 2 ton air conditioner use?

As a general rule of thumb, for AC power consumption calculation you should take, 1 ton of cooling = 1,000 watts. 1.5 ton of cooling = 1,500 watts. 2 ton of cooling = 2,00 watts.

How many watts are in a unit?

1000 watts

In India, 1 unit of electricity is equal to 1000 watts.

What does kW mean in AC?


Air conditioner sizes are represented by their kilowatt (kW) capacity output figures. This is different from the power input, which refers to the power needed to produce the listed cooling and heating output.

Is it cheaper to leave the AC on all day?

Your AC will actually run longer overall if it is left on all day instead of being shut off. If you turn it off for part of the day, it runs less and results in more energy savings for you. In almost all cases, it will save you money to shut off your AC while you are away from home.

How many watts does a 18000 BTU air conditioner use?

5275.28 watt per hour is the 18,000 BTU’s/hr.

How many watts does a 3 ton air conditioner use?

3500 watt per hour

A three ton central air conditioner uses 3500 watt per hour and a 12,000 watt window unit uses 1200 watt per hour as a general reference point.

How many watts does a 3.5 ton AC unit use?

3,500 watts per hour

Central Air Conditioning Systems
A typical 2,000-square-foot house has a 3.5-ton air conditioner. This size of AC unit uses about 3,500 watts per hour when it’s in cooling mode. When a central air conditioner is running in the fan-only mode, it uses approximately 750 watts per hour.

How many amps does a 3 ton central air conditioner use?

Your central air conditioner or heat pump uses 3 to 21 amps based on its size and efficiency. A 3 ton AC in the SEER range from 14 to 24 SEER will use 7.5 to 12.3 amps.

How many kilowatts does a 3 ton AC unit use?

If you have a 3-ton (30-Amp, 36,000 BTUs) air conditioner, you need at least a 14 KW generator. If you have a 4-ton (40-Amp, 48,000 BTUs) air conditioner, you need at least a 17 KW generator.

How can I calculate my 1.5 ton AC power consumption?

EER(Energy Efficiency Ratio)=cooling capacity of ac/power consumed by ac. cooling capacity of 1 ton is equal to 3.517 kW of power. =1.5*3.517/2.7=1.954 kW.

How many watts does a 36000 BTU air conditioner use?

How Many Watts Do Mini Split Air Conditioners Use? (500 – 2,500W)

Mini-Split AC Unit Capacity (in BTU): Power Draw (in Watts):
24,000 BTU (2 tons) 2,000 watts
30,000 BTU (2.5 tons) 2,500 watts
36,000 BTU (3 tons) 3,000 watts
42,000 BTU (3.5 tons) 3,500 watts

How many watts is a 4 ton AC unit?

1: How many watts does a 4 ton ac unit use? From 2285 watts to about 5500 watts for SEER ratings from 10 to 24. A 16 SEER 4 ton AC uses about 3400 watts of electricity.

How many kWh does a 2 ton AC use?

Central Air Conditioner Electricity Usage Table

AC Capacity (Ton) Electricity Usage (Per Hour) Electricity Usage (Per Month)
2 Ton 1.50 kWh 1,080 kWh
2.5 Ton 1.88 kWh 1,350 kWh
3 Ton 2.25 kWh 1,620 kWh
3.5 Ton 2.63 kWh 1,890 kWh

How much power does 4 ton AC consume?

Central Air-Conditioners use an average of 1 kilo watt hour per ton per hour. A four-ton air-conditioner uses around 4 kWh per hour. The usage would be 48 per day if a four-ton air-conditioner ran for 12 kWh per day.