I am currently in the research phase of a project. I would like to get some feedback, opinions, and supporting data/information concerning the feasibility of a small volume (less than 1 cubic meter) plasma container device that would ideally be used to store energy up to 100 Megajoules of energy via a plasma medium for an indefinite period of time. The purpose is not fusion, it is simply to store energy in a plasma medium with the aid of magnetic confinement techniques (superconductive magnets if necessary). What type of heating techniques can be used? Perhaps resistive heating, radio frequency injection, induction heating, etc.? Which process would be most effective and efficient? What is the best way to extract energy from the plasma medium without physical contact? Perhaps some sort of magnetohydrodynamic generator setup? Some sort of reverse induction? Magnetic resonance energy transfer? What considerations should be taken into account when designing such a device?