Question: how much electricity does a ducted air conditioner use?
Answer: For example, a 10 kilowatt (kW) air conditioner has a cooling capacity of 10kW. If it has an EER of 3.8, its power input will be a little over 2.6. If your local kWh cost is 20 cents, your ducted air conditioning system might cost 52 cents per hour to run.