How many zettawatthour in 1 GW-h? The answer is 1.0E-12. We assume you are converting between zettawatthour and gigawatt hour. You can view more details on each measurement unit: zettawatthour or GW-h The SI derived unit for energy is the joule. 1 joule is equal to 2.7777777777778E-25 zettawatthour, or 2.7777777777778E-13 GW-h. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between zettawatthour and gigawatt hours. Type in your own numbers in the form to convert the units!
1 zettawatthour to GW-h = 1000000000000 GW-h
2 zettawatthour to GW-h = 2000000000000 GW-h
3 zettawatthour to GW-h = 3000000000000 GW-h
4 zettawatthour to GW-h = 4000000000000 GW-h
5 zettawatthour to GW-h = 5000000000000 GW-h
6 zettawatthour to GW-h = 6000000000000 GW-h
7 zettawatthour to GW-h = 7000000000000 GW-h
8 zettawatthour to GW-h = 8000000000000 GW-h
9 zettawatthour to GW-h = 9000000000000 GW-h
10 zettawatthour to GW-h = 10000000000000 GW-h
You can do the reverse unit conversion from GW-h to zettawatthour, or enter any two units below:
The SI prefix "zetta" represents a factor of 1021, or in exponential notation, 1E21.
So 1 zettawatthour = 1021 .
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