Elemental Reactor

A fusion reactor consists of a magnetically sealed chamber containing hydrogen gas which is compressed and heated until the atoms begin to fuse into helium. It is possible to weave a Rune into the magnetic field which will confine an Elemental from the plane of Light inside the chamber. The presence of such concentrated living electromagnetic energy increases the fusion reaction manyfold, allowing more power to be drawn from the reactor without overloading it. A reactor can supply power as the next size up while an elemental is confined (i.e. a belt pack can supply power as a backpack, etc).
However, since the Rune of confinement is woven into the magnetic field it persists only as long as the field persists. If the reactor ever shuts down (or the field is otherwise disrupted) the Elemental will escape. As it is unlikely an Elemental would have willingly entered such an arrangement it will be quite upset over the whole affair. For this reason only Weak Elementals of Light are bound into service inside reactors, the risk of releasing an enraged Strong Elemental is too terrible to contemplate.

Weight: normal for reactor type

Spells used: magic ritual
Time to enchant: 4 months