Comparing all oil (ever) to one day of sunshine 
   
   Ultimate Conventional Oil    
est.                        1,750,000,000,000  barrels  Colin Campbell, 1997
*                                       5,800,000  btu/barrrel  CRC
=      10,150,000,000,000,000,000  btu/ever   
   
   
   Sun energy that intersects earth daily   
                                      49,240,279  mi^2  earth diameter 7,918 mi
*                                     27,878,400  ft^2/mi^2   
*                                                  445  btu/ft^2  solar constant
*                                                    24  hrs/day   
=      14,660,865,419,430,000,000  btu/day   
                                      14,660,865  quads   
   
   
  144%  daily sun:all conventional oil 
   
                                                   400  quads annual global consumption 
   
                                              36,652  daily sun/annual global energy consumption 
   
  Annual Energy (in metric units)  
   
est.                                                    13  tw annual global energy consumption 
*                                               8,760  hrs/year   
=                                          113,880  twh/year   
/                                               1,000  quad/tera  conversion
=                                                  114  quadrillion watt-hrs/year 
*                                               3.413  btu/watt-hr  conversion
=                                                  389  quads/year  (~ same as 400 quads)