The difference is orthodoxy, since there is no such thing as Palamism, is done by ascetics like Moses, Elias, Paul, Cyril, John of Damascus and Gregory Palamas and not by fat pigs like Luther and Aquinas. Knowledge of God is an activity, thus without practice, like gluttons clearly don't pratice the faith, there can be no knowledge or title of theologian.
In orthodoxy, energies are synonym with Grace, Light, Works, Activity and all activity is done by persons. You first need to understand what is the difference of person and essence and what does it mean to say all activity is personal. Read Basil's letter 38.