——stored and converted energy-——
OK, I’ll accept the converted thought. What and how is it converted?
There are many different videos that all produce the same result. There is more here than is obvious.
There are numerous examples shown of an alternator producing more power than the motor running it uses.
You have stored energy in the magnets which is converted into electron flow in the windings. Let's not forget that this "machine" doesn't just take off by itself. You have to exert energy when you spin it to initially make it go. The whole idea on its face is pretty ludicrous when you discover how much horsepower it takes to generate, say, 500 watts with an automotive alternator.
That's not possible. Do some research into how much horsepower it takes to spin an automotive alternator under a load to generate 600 watts.