The result of your conversion between petajoule and gigawatt hour appears here
To convert between Petajoule and Gigawatt Hour you have to do the following:
First divide 1.0e+15 / 3.6e+12 = 277.77777778
Then multiply the amount of Petajoule you want to convert to Gigawatt Hour, use the chart below to guide you.
Symbol: PJ
No description
Symbol: GWh
No description