Let’s take an example ,I want to calculate the power consumption of the refrigerator at my house. This formula finally gives you the number of kWh. The Wattage should be divided by 1,000 because electricity measured in kWh so we need to convert the watts-hour into the kilowatt-hour(watts to kilowatts). If you want to calculate the monthly power consumption by your electrical device then the number of days use=30 (the number of hours you use it per day) x (the number of days uses) x ( / 1,000) = kWh(energy consumed by appliance) Power Consumption Calculation FormulaĮ(kWh/day) = P(in Watts) × Time(number of usage hours per day) / 1000(W/kW) Third One-The number of days per year(for the yearly calculation) you use when the appliance is in turn on. Second One-The number of hours you use that the appliance per day. To calculate the energy consumption of an electrical appliance in kWh, You need three-parameter.įirst One –The wattage of the electrical appliance in watt(i.e the capacity of the electrical appliance) How to calculate the power consumption of an electrical appliance? This finally gives us the number of kWh (kilowatt-hours) per day, per month, per year for the selected device. If you like this article then feel free to share it on WhatsApp, Facebook, Pinterest and Reddit.Using the below energy calculator you can easily find out the power consumption of electronic devices.Ĭhoose device type from “ Typical Appliance” list, input the power use( wattage of the device) and Number hours of use per day and click the calculate button. Almost 70 % of the time printers are on standby mode hence, if it’s not absolute necessary then turn OFF your printer from the switch board the moment you are done using it. The power consumption of small desk printers isn’t much but the large business printers consume lot of power. This is a great way to find out your printer standby power consumption and get an idea about the number of hours your printer is in standby mode.Ĭheck out this tutorial video from altE to understand how to use a kill A Watt Meter to track your appliance energy consumption. Then start using your printer the way you do normally and you can see in real time how many kWh (units) of electricity your mixer is using. Now that you know all the above parameter it’s time to use the calculator below. For example a 500 watt AC running for 8 hours will consumes 500 watt X 8 hours = 4000 watt hours or 4 kWh of electricity. Unit Of Electricity (kWh): The power consumed by any device is measured in units of electricity (kWh).Type the electricity tariff in your area. I live in Mumbai, India here electricity tariff is Rs 12 / kWh. Electricity Tariff: Electricity tariff is the amount your electricity provider charges you for one unit of electricity.For example if your printer is in operation for the 8 hours in a day then type 8 in the operational hours tab. Operational Hours: Operational hours is the number of hours you printer is in operation.A 30 watt printer uses 30 watts of power every hour. Wattage: Wattage is the rate at which your printer consumes power.To calculate your printer power consumption and interpret the results correctly you need to know and understand the following four parameters: Mind you the above figures are only when printer is printing, in standby or sleep mode power consumption is quite less. If you have a small desktop printer then assume wattage between 20 W to 30 W and if you have large business photocopier then assume wattage of 2000 W. The above data is obtained from Canon printer datasheet, you can check it here. Canon Large Business Printers Wattage – 2500 W The above data is obtained from Epson printer datasheet, you can check it here. Epson Small Inkjet Printer Wattage – 25 W You can check the rated power of your printer by reading the specification on the sticker on it or head to the manufacturer’s website to find your printer and check wattage over there. Whereas large business printers have rate power between 1000 watt to 3000 watt. To give you a rough idea most desk size printers consumes have rated power anywhere between 10 watt to 50 watt. The rated power of a printer depends on the type of printer.
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