The amount of electricity consumed by an air conditioner (AC) depends on several factors, including the AC’s capacity (measured in tons or BTUs), the efficiency of the unit, the temperature setting, how long it operates, and the climate conditions.
How Much Unit of Electricity Consumed by AC
To estimate the electricity consumption of your AC, you can use the following formula:
Electricity Consumption (in kWh) = AC Capacity (in kW) × Operating Hours × Days
Here’s a breakdown of each factor:
- AC Capacity (in kW): This is the cooling capacity of your AC unit, typically given in kilowatts (kW) or, more commonly, in tons or BTUs. To convert tons to kW, you can use the conversion factor that 1 ton of cooling is equivalent to approximately 3.517 kW. For example, if you have a 2-ton AC, it would be roughly equivalent to 7.034 kW.
- Operating Hours: This is the number of hours your AC runs each day. It depends on your usage patterns and climate. In hotter climates, the AC may run for more extended periods to maintain a comfortable temperature.
- Days: This is the number of days you use your AC during a specific period, such as a month or a year.
- Electricity Rate: The cost of electricity varies by location and can change over time. You can check your electricity bill for the rate you pay per kWh.
Once you have these values, you can multiply them to find the electricity consumption in kilowatt-hours (kWh). Here’s an example:
Let’s say you have a 2-ton (or 7.034 kW) AC unit that runs for 8 hours a day, and you use it for 30 days in a month. Your electricity rate is Rs.12.38 per kWh.
Electricity Consumption = 7.034 kW × 8 hours/day × 30 days = 1,685.28 kWh
To calculate the cost, simply multiply the electricity consumption by the rate:
Cost = 1,685.28 kWh × Rs.12.38/kWh = Rs.20865.93
So, in this example, your AC would consume approximately 1,685.28 kWh of electricity in a month, costing you around Rs.20865.93.
Keep in mind that these are rough estimates, and the actual electricity consumption can vary based on various factors. Additionally, using energy-efficient AC units and practicing good energy-saving habits can significantly reduce your electricity consumption and costs.