Overunity is the retention of reactive power at a rate which is faster than its loss and conversion into real power. And since reactive power is useless, ie. lossless, it cannot be lost or spent without its conversion into real power and, thus, cannot be conserved. Only real power is a conservable quantity in contrast to reactive power which can be synthesized from the square root of negative one. Reactive power accumulates just by its retention, alone. Only rarely is the injection of reactive power required to initiate and/or maintain a free energy process if certain principles are adhered to, namely: an open transmission line terminated by a self-short. The former retains the buildup of reactive voltage while the latter retains the buildup of reactive current.

But, once in a while, the synthesis of reactive power is required to initiate or maintain an overunity condition.

The synthesis of reactive power is the reversal of current per cycle of oscillation spawning negative watts. This is also the reversal of the direction for time of energy's frame of reference when this phenomenon is viewed from our perspective, but not from the point of view of energy's frame of reference. From energy's vantage point, time remains moving in a forward direction and, thus, is not violating the Law of Conservation if (indeed) it is a Law of physics.

The Relativity of Energy and the Reversal of Time is a Shift in Perspective - YouTube

But the audio of the original is superior ...

How to Build an Overunity Device - 30% audio. - YouTube

These presentations are companion pieces to the paper which I submitted to this conference on the topic of how Relativity explains Free Energy and Overunity by describing it as the accumulation of Reactive Power and the injection of transient surges which, by their very nature, are evidence of Time Going Backwards for Energy when viewed from Our Perspective ...

The Relativity of Energy and the Reversal of Time is a Shift in Perspective

Thus, free energy in particular, and energy in general, expands and contracts as a consequence of a shift in perspective. But, reactance makes this bidirectional conversion possible, namely: the square root of negative one is the mysterious method whereby energy is ultimately created and destroyed.

Thank you, Eric Dollard, for making it easier to understand electrical energy from a layman's perspective.

In retrospect, it could be postulated that the square root of negative one is an ambiguous condition for the direction of time.