What if we consider the possible idea of the Lorents Force Potential contained in neodymium megnets as a viable energy source, I mean, the energy is already stored that is the container of “fuel” and it is unquestionable that it can produce Continuous movement towards basic mechanical systems and by means of electrical pulses controlled with also basic electronics, a “perpetual” and stable generation of synetic force can be maintained that at the same time can produce constant electrical energy, as any other generator does. (Obviously there is wear and tear and loss of strength at some point) but believe me it is by no means nothing compared to putting daily fuel to an engine.
Then then, to produce fuels “of any kind” we require energy, it can be produced locally in large quantities, off-grid, on demand 24/7 and in ridiculously small spaces.
The potential can achieve energy self-supply, for example in the most modern steel industry plasma arc is required for smelting. The thermal applications of many industries for transformation processes can be replaced by gas or fuel oil towards zero emission electrical resistance systems, for example.
The solution is applicable for electric mobility of any type off-grid and without the need for batteries in electric vehicles because it would have a generator on board.
It is just a matter of imagining the matter. By the way, outside the cost of hardware and basic maintenance, the real energy cost is 1% against other energies including nuclear and the environmental cost is 0 as a finished product, considering outside the emissions generated in the manufacturing stages of the components that make up the solution and that are offset by the benefit that is offered.