Advantage of ZenOn Energy version versus Standard version?

Advantage of ZenOn Energy version versus Standard version?

Hello,
These days I am analyzing the differences between ZenOn Energy version and Standard version. I didn't find out many differences.. For example, if I get the ZenOn Standard version with "COMPLETE" license, I will have all drivers with unlimited variables. The missing options maybe just "Interlocking" and "Command processing". But the price difference between these two versions is very important. I don't understand it very well..
So my question is as the title, what are the advantages of ZenOn Energy version versus Standard version? For an engergy company, can we just buy the ZenOn Standard version with "COMPLETE" license? What will be the precise technical problem if we do so?

This is a migrated post! Originally posted on 07.06.2011 by user lephis. Please be aware that information can be outdated.