Earthed

How much solar energy reaches the earth in a 24 hour period?

I would like to figure out how much energy from the sun reaches the earth's surface in a 24 hour period. I'm only looking for a an approximation.



This is not for a school project. This is a personal curiosity.

Public Comments

1. Approximately 10.55 zettajoules per day.
   
   
   
   30% of this never reaches the surface . . . so at the surface approximately 7.38 zettajoules per day.
2. Duna
3. 3.826E+26 Watts (86400 sec) [(6.378E+6)/(1.496E+11)]^2 / 4
   
   = 1.5E+22 Joules
4. Basics of Solar Energy
   
   
   
   zebu.uoregon.edu/disted/ph162/l4.html