Worth noting, the first stage flight probably constitutes the most powerful machine ever successfully operated by humankind, no?
(A fusion bomb generates more power for a minuscule period of time, but that sort of competes in a different class.)
(A fusion bomb generates more power for a minuscule period of time, but that sort of competes in a different class.)
Starship is like a top drag racer where it’s quickly damaging itself in normal operation, but it’s the most powerful local machine that can last for over a minute.
However, there’s a lot of pulsed devices that briefly get to much higher energy levels like artillery or experiments that charge capacitor banks for massive discharges like Z machine which briefly hits 300TW.
Edit: misread your comment, we’re in agreement. But I’ll leave the arithmetic.
Also, calculating power output like that is misleading. A solar powered ion engine on a probe has constant solar power and constant acceleration but would have increasing calculated power output over time as it keeps accelerating. What’s going on is rather than the engine being more powerful the propellant starts with more kinetic energy.
Nothing else comes close, even planned ones that aren't operational yet.