" 

 == ENERGY, ""ENERGY"", energy, and ""energy"" == 

 The problem with this page seems to be that it discusses an entity which is very abstract. ENERGY is the collection of phenomena under study, each form forever beyond the reach of our direct knowledge, while energy is but one of these phenomena. ""ENERGY"" is the sum of our models concerning um, maybeeee.....energy? While ""energy"" is the particular model under discussion in any singular way.  
 So, ENERGY cannot be defined, nor can energy, and ""ENERGY""  is too big to handle except in one of its specific instances, e.g., E=mc^2, I ran out of _energy_ for more examples...etc. So, therefore, Q.E.D., only ""energy"" can be defined fairly well. Link this page to these other uses, and stop trying to stretch the Sierpinski Carpet.  

 Or in other words, ""HEY YOU KIDS! GET OFF MY LAWN!""  

 Now go wash your hands and have a cup of tea and a sit-down.  

 Thanks.   "