Energy by itself was powerful, but only if it was being used.
Reality consisted of energy and matter interchanging with each other. Order arose when lots of processes took place that converted one form of energy into another form of energy, allowing someone or something to take advantage of the process to accomplish something useful.
An ordinary human converted the energy absorbed by the food he absorbed to perform his job and go about his day.
A simple mech consumed the energy supplied by its energy cells and power reactor in order to move around or attack its opponents.
A star released energy at a massive scale due to the immense gravity pressing a huge amount of atoms together, fusing them into bigger atoms that also happened to release a lot of energy in the form of electromagnetic radiation.
