![]() ![]() The unit kWh is only a way to represent the amount of energy being consumed not that 1000 Watts was consumed over an hour. It should be noted though that running a 100 Watt lightbulb for 10 hours would also equal 1 kWh of energy or, a 4000 Watt appliance would take only fifteen minutes to reach 1 kWh. Think of energy as being the amount of ‘fuel’ that is used over time or is stored inside of something.īasically, if you were to run a 1000 Watt appliance (1kw) for one hour you would have used 1 Kilowatt-hour of energy. What is Kilowatt-hour?Ī Kilowatt-hour (kWh) is a unit of energy that equals the amount of energy that one Kilowatt would generate if sustained for one hour. So when you flip on that 100 Watt light bulb you are using 100 watts of power and over the period of an hour you can figure out how many Kilowatt-hours the energy consumption of that bulb is. ![]() We all are exposed to watts on a daily basis, in fact, the typical application for the Watt is on appliances and light bulbs. One way to visualize wattage is to think of it in terms of speed such as miles per hour or kilometers per hour. Think of power as being the rate that energy is either being produced or used. A watt is a unit of power that equals 1 joule per second. What is a Kilowatt?Ī Kilowatt is 1000 Watts. ![]() Getting versed in these conversions will help you at some time in your life.There often is a time when it is necessary to convert the energy consumption (represented by Kilowatt-hours which is abbreviated as kWh) to electric power (represented by Kilowatts which is abbreviated as kW).Īlthough it may seem to be easiest to do this calculation using any of the available online converters the formula is so simple that it makes more sense to just calculate the conversion using any calculator. To successfully implement the formula in the calculator, the consumer or the buyer of the appliance should note the elements of the formula and their units and do any necessary conversion to fit the formula. The consumer will estimate the cost of energy an appliance will consume even before buying any appliance by considering the power rating provided for the appliance and applying the above formula. Divide the 50 watts by 1000 to get 0.05kW ![]() In the case of an appliance rated at 50 watts and used for 1 hour the energy consumption (kWh) calculation is Ĭonvert the watts into kilowatts. In the case the appliance X is used for 15 minutes, the energy calculation is as follows Ĭonvert the minutes into hours. For instance, taking an appliance X rated at 3kW that is used for 4 hours, the energy consumed (kWh) is 12kWh. Calculation:įor the calculation of kWh, all you need to have and the note is the power and the number of hours of consumption. It is important to note that the power rating should be in kilowatts (kW), and time should be in hours (h). P = Power defined as the rating for an appliance (kW). Kilowatts to kilowatt-hour conversion can apply the formula:Įnergy (E) is equal to electrical power (P) times time (T) in hours.Į = energy defined by the amount of electricity used (kWh). To convert watts to kilowatts, divide the watts by 1000 to get the kilowatts. The conversion involves watts to kilowatts and kilowatts to kilowatts-hour. Kilowatts to kilowatt-hours is a significant conversion in electricity billing as it reflects the rate of electricity used and the total amount of energy used. Kilowatt-hour is the basic unit for energy bills as it’s used to calculate the energy costs and a way to quantify the amount of energy used. Kilowatt-hours (kWh) is the electricity demand for an appliance to run over a given period. Kilowatts (kW) is equivalent to 1000 watts. Watt is the standard unit of electrical power. It is very vital for a consumer when purchasing the appliance as the consumer can estimate the energy supply required and the cost of the energy to use. The appliance manufacturer labels the power rating during the packaging of the equipment. Electrical appliances have a power rating given in watts or kilowatts that indicates the amount of electricity the device requires to run and provide the necessary output. ![]()
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