![]() ![]() (KW capacity/ EER) x price/ hour = price/ kWh ![]() So, putting the EER in mind, a different accurate calculation is needed for new air conditioners today with energy star ratings: This along with engineering advancements as introduced the Energy Efficiency Ratio (EER) ratings that we commonly see in today’s air conditioning units. Since consumers nowadays try to look for low energy consuming products in the market, manufacturers have created ways to make their products energy efficient. Using star rating to accurately calculate running costs Therefore, we need to use the star rating to calculate correctly. However, these calculations are not the real costs because air conditioners are efficient and use compressors and refrigerant gas to convert the kW to cool air a lot more efficiently. Now, if we calculate the cost to run a regular use old inefficient 2.5kW air conditioner in a 25m 2 room with a sample electricity charge of 28 cents per hour, then:Ģ.5kW x 28 cents/ hour = 70 c/ kWh or $ 0.7/ kWhĭaily cost (on an 8 hour usage): 560 c or $ 5.6 Price/ kWh x number of hours used in a day = daily cost ![]() KW (capacity of unit) x price/ hour (based on electricity provider) =cost to run per hour (price/ kWh) Below is the formula for computing the cost per hour of your unit before taking in to consideration any energy efficiency of the unit. So, check on the wattage of your current air conditioning unit or the one you plan to buy so that you can calculate your total expense for a cool and comfortable place. But many ask how much does it cost for a unit to run and if it is this same unit that is the power monger driving our bills right through our pockets? Calculating your AC running expenses Thus, being a huge country also entails having several different climate zones that range from a tropical influenced climate to warm and dry winters, with Western Australia and Perth leaning more on the dryer subtropical or arid climate.Ī long summer period of hot and dry weather makes an air conditioner a necessity in every Perth home and office. Australia is known to be one of the seven continents of the world. ![]()
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