The result of your conversion between terawatthour and petawatthour appears here
To convert between Terawatthour and Petawatthour you have to do the following:
First divide 3.6e+15 / 3.6e+18 = 0.001
Then multiply the amount of Terawatthour you want to convert to Petawatthour, use the chart below to guide you.
Symbol: TWh
No description
Symbol: PWh
No description