This is not my belief, it is just something that popped into my head and I felt I ought to share it.
Matter seems to have limitations. Energy seems to have limitations. I can think of only one thing that has no limitations at all... ready?...
emotions.
Emotions have no limitations that I can think of, nor has anyone ever reached the limits of emotion. I know it sounds weird, but perhaps God is raw emotion. He is, in a very loose and figurative sense, Pandora's box. It almost makes sense... When I "tap" into God I feel so strongly. I feel love like never before. My emotions are amplified. Who knows...
...which is what it all ties back to. we can only speculate on what God is made of. What's the point? Nothing comes of pure speculation.
One thing I have noticed. Everyone keeps talking about "limitations". We are dealing with God here, not some science project. God created EVERYTHING. He hand crafted ever strand of DNA. We personally placed every electron of every atom. God has no limitations, and what is to say He can make energy limitless, if it so fits Him?