Energy is a concept that has been coined by physicists. There is no observable thing known as energy anywhere.
Contemporary art often plays to the part of us that is very uncomfortable with not being sure, that cannot maintain a state of 'don't know'. The over-prioritising of meaning gets in the way of just experiencing the art in a more sensual way. Judging quality purely from an intuitive emotional response needs more confidence and experience than just working it out like a crossword clue.