The following table shows the estimated value of wattage rating (in Watts) for different and common household devices, appliances and equipment. (Take 30 days = 1 month, and 365 days = 1 year)Īnnual Power Consumption = Wattage rating x time in hours x 365 daysĢ000 Watts x 3 Hrs x 365 days = 2190000 Watts-Hourĭaily Power Consumption = 2190 kWh Power Consumption of Typical Home Appliances in Watts Find the total daily, monthly and annual power consumption in kWh. What is the power output for a 60.0-kg woman who runs up a 3.00 m high flight of. If an electric water heater of 2kW runs for 3 hours per day. ![]() To do this, you must know the wattage rating of the device in watts (or voltage x current rating = power rating) and the operation time of the appliance in hours. The following example shows how to calculate your electrical energy and power consumption “Wh” and “kWh” on a daily, monthly and annual basis. How to Calculate Power Consumption in kWh? In a circuit, its the product of voltage and current (P VI).
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