First I'll answer your question "as is" and then point you in perhaps a more productive direction as regards your actual needs.
My question to the community is this [...deletia...] Is it possible
that such a device is actually drawing power from the Earth's EMF?
assuming the following givens
- The earth suddenly has an EMF field we were not previously aware of
- overunity energy generators are possible
- QED overunity generators interact in some way with 1 above
If it is possible, how large of a Stator Coil would be needed to have
EMF resonance between the rotating magnet, the Stator coil and the
There is no logical way to answer this so pick what suits your story. No one will be able to reasonably critique it in terms of your "realistic as possible" objective.
First be aware of the differences between "perpetual motion machines" and "credible sounding future tech" and "current emerging technologies".
Your writing objective is to be "realistic as possible".
This is a core feature of the "hard sci-fi" genre.
Fans of hard sci-fi tend to value certain kinds of ideas more than others. "perpetual motion machines" in particular tend to be shunned in hard sci-fi. QED, as commonly discussed on the web, is very much a modern example of "perpetual motion machines".
"perpetual motion machines" have long been associated with fools and criminal scams by the scientific community and hard sci-fi fans.
That is not to say that it is a 100% given that its impossible for such a device to be built in the near future, just that present knowledge implies it is very very very very very unlikely. The closest idea that is typically used in is "zero-point energy".
That said, current bleeding edge physics is full of weird counter-intuitive ideas so they may be becoming more acceptable in hard sci-fi.
You may find this world building site useful
Progression of Technology in the Terragen Civilisation