You might find this interesting http://en.wikipedia.org/wiki/Orders_of_magnitude_(energy)
Total worldwide energy consumption (2008) 10^19
Total energy from the sun that strikes earth each year 10^24
Total energy output from the sun each year 10^34
Total worldwide energy consumption (2008) 10^19
Total energy from the sun that strikes earth each year 10^24
Total energy output from the sun each year 10^34