They are different, but similar!
High testosterone = High hormone levels of testosterone. Leading to faster recovery, more muscle mass, a deeper voice, and generally more drive to get sh!t done.
High test energy = the way you carry yourself. This shows up in your willingness to take big, ballsy risks. In your ability to enjoy competition, to pursue that woman you secretly like, to hit the gym hard and do difficult things just because it feels good.
Having high test is important if you want to operate to the full masculine capacity you are called too, but high test energy is something that needs to be intentionally and consciously put into motion. Having high hormonal test will make it easy to have high energy test, whereas low hormonal test will make this lifestyle feel nearly impossible or exhausting.