A window ac, running six hours each day will consume 270 kWh.A smaller 6,500 BTU room air conditioner will consume 144 kWh.
The energy use of a central air conditioner highly depends on the climate of the region, a central air conditioner will run 3 to 7 months of the year depending on the outside temperature. An average central ac will use 3000 to 5000 watts of power every hour for around 9 hours a day during the hotter months. Click calculate to find the energy consumption of a central air conditioner using 3500 Watts for 3 hours a day @ $0.10 per a kWh. Running 3 hours a day is the same as running 9 hours a day for 4 of the warmer months. Cost Per Hour: Cost Per Day: Divide the 8,000 BTU cooling capacity by the EER to determine the power consumption in watts per hour of the air conditioner. For example, if you have an A/C unit with an EER of 8, divide 8,000 by 8 to get a power consumption of 1,000 watts per hour -- or one kilowatt per hour. 1.2 kWh x $0.25 = $0.30 per hour to run your window air conditioner. At 8 hours a day for 125 days of summer, your window air conditioner will have an annual running cost of $300 a year. Typical Electricity Costs. The town of Wellesley, Mass., has estimated the average cost of running central air conditioning in a typical home for six hours a day will use 900 kilowatt/hours (kWh) per month. At a cost of $0.134 per kWh, this amounts to $120.60 per month. A large 12,000 BTU air conditioner, like that in a window, running six hours each day will consume 270 kWh, at a cost of $36.26 per month. A smaller 6,500 BTU room air conditioner will consume 144 kWh at a cost of $19.34
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how much energy does an air conditioner use per hour