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Enter the energy consumption in kilowatts-hours (kWh), enter the consumption time period in hours (h) , then click on " Calculate " button. kW to kWh click on " Swap " button.
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Converting between kilowatt-hours (kWh) and kilowatts (kW) involves understanding the relationship between energy, power, and time. Here are the detailed descriptions and the conversion process:
Kilowatt-Hour (kWh)
- Definition :- A kilowatt-hour is a unit of energy equivalent to one kilowatt (1 kW) of power used for one hour.
- Usage :- It is commonly used by electric utility companies to measure energy consumption. For example, if you leave a 100-watt (0.1 kW) light bulb on for 10 hours, it will consume 1 kWh of energy (0.1 kW * 10 hours = 1 kWh).
Kilowatt (kW)
- Definition :- A kilowatt is a unit of power equal to 1,000 watts. It measures the rate at which energy is used or produced.
- Usage :- It is used to quantify the rate of energy usage for appliances and systems. For example, a 2 kW heater uses power at a rate of 2 kilowatts.
General Formula
To convert kilowatt-hours to kilowatts, you need to know the time period over which the energy is consumed. The formula is:
\[\text{P} = \frac{\text{W}}{\text{t}} \]
-\(W\) : The energy consumption in kilowatt-hours (kWh).
-\(P\) : The active power rating of the device in kilowatts (kW).
-\(t\) : The total usages time on device is used, usually measured in hours (h).
Practical Examples
Example Calculation: If an appliance consumes 5 kWh of energy over 2 hours, the average power consumption (in kW) is:
\[ \text{P} = \frac{5 \text{kWh}}{2 \text{h}} = 2.5 \text{kW} \]Therefore, the active power is 2.5 kW
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