quite interesting. you could use superconducting magnets to store energy (kinetically)  or...

http://beaconpower.com/carbon-fiber-flywheels/

its a cool concept i would like one for my car please... to power the car radio... :) forget those caps... lol

~Russ

Sounds like a variation on the concept I'm trying to make lol.... except done in a more complex way.

I actually built a similar concept using magnetic bearings however the real problems relate to external inertial changes and the fact it explodes like a hand grenade on over speed. I had also thrown around the idea that a person could substitute a "material" per say with a metal powder/plasma. A variation between ball lightning and a plasma vortex in which an inertial change causes induction opposing said inertial change producing stabilization as confinement. It is a similar concept but as Apoc4lypse implied, done in a more complex way.

I think the concept of getting a generator to run a motor that also runs the generator is completely possible. Not by running a generator running a motor that runs the generator by any traditional means because that will never work unless you completely redesign both the generator and the motor to both be part of one another.

This is why I'm doing emf calculations for different stator ideas or designs for a possible generator / motor design that would run itself once it is sped up to a certain speed.

Then you hook that up to a traditional generator that can be turned with the torque levels you obtain and that's your energy.

Then take that energy and hook it up to a Toroidal Power Unit to increase the power using field resonance.