Q:

Energy Generation through magnets

Lets say we had two magnets, one much larger than the other. Then we put the larger one in the center and force the smaller one into an orbit around the large one using the magnetism force as the centripetal force. I'd assume the magnets would have to be spheres and on a flat, low friction surface to cancel out external forces. Using the correct weights, radius, and magnetic pull, how much electrical energy would possible to take out of a machine, with kinetic generators, the size of lets say a tire and how much, on the ambitious end, would be possible from the size of a nuclear power plant? 
It's 1 am and I was just curiously in bed thinking of this. The materials seem feasible and minimal. Thanks in addition for your responses! 

A:

Zero. No arrangements of magnets and weights will give you any electrical energy, aside from recovering the work it takes to build that arrangement. In which case, why not skip the magnets and spin a turbine instead?
You can't make energy out of nothing, even if magnets are involved.

