How many kilowatt-hour in 1 petawatthour? The answer is 1000000000000. We assume you are converting between kilowatt hour and petawatthour. You can view more details on each measurement unit: kilowatt-hour or petawatthour The SI derived unit for energy is the joule. 1 joule is equal to 2.7777777777778E-7 kilowatt-hour, or 2.7777777777778E-19 petawatthour. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between kilowatt hours and petawatthour. Type in your own numbers in the form to convert the units!
You can do the reverse unit conversion from petawatthour to kilowatt-hour, or enter any two units below:
The SI prefix "peta" represents a factor of 1015, or in exponential notation, 1E15.
So 1 petawatthour = 1015 .
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