It depends on the btu of the unit
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The cost of running a window air conditioner continuously depends on its wattage, the local electricity rate, and how many hours per day it's in use. On average, a window air conditioner with a 1,000-watt usage would cost around $0.10-0.20 per hour to run, totaling $2.40-$4.80 per day if used for 24 hours.
Running the air conditioner for an hour typically consumes more electricity than leaving the lights on all day.
With 2.8 million people and an average Canadian load of 2.5 kW per person (one of the highest in the world), the average Toronto load is about 7 Gigawatts, which is about 160 GWh each day, or 160,000,000 kWh per day.
To calculate the kilowatt-hours (kWh) used by an air conditioner running 12 hours per day in a month, you would multiply the unit's power consumption in kilowatts by the number of hours and the number of days in a month. Assuming an average of 1.5 kW power consumption, it would be 1.5 kW x 12 hours/day x 30 days = 540 kWh per month.
To calculate the cost, first convert the hair dryer's power consumption to kilowatts: 1500 watts = 1.5 kW. Then, calculate the daily energy consumption: 1.5 kW * 0.5 hours = 0.75 kWh. Finally, determine the total cost: 0.75 kWh/day * 30 days * $0.12/kWh = $3.60.