How to convert energy in kilowatt-hour (kWh) to electric power in watts (W).

You can calculate watts from kilowatt-hour and hours. You can't convert kilowatt-hour to watt unit since kilowatt-hour and watt units represent different quantities.

The power P in watts (W) is equal to 1000 times the energy E in kilowatt-hour (kWh), divided by the time period t in hours (hr):

*P*_{(W)} = 1000 × *E*_{(kWh)}* */* t*_{(hr)}

So

watt = kilowatt-hour / hour

or

W = 1000 × kWh / h

What is the power consumption in watts when the energy consumption is 15 kilowatt-hour for time duration of 3 hours?

*P* = 1000 × 15 kWh / 3 h = 5000 W

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