Hey there Pedro Osvaldo Diaz Fustier! Absolutely, magnetic energy is a real player in the energy game. It's a fundamental aspect of electromagnetism. When you're dealing with electrical machines, magnetic fields play a crucial role in their operation. But here's the twist – while magnetic energy is influential, it often gets overshadowed in energy balance discussions because it's more of a mediator than a direct source or sink.

In electrical generators, the primary focus tends to be on electrical energy conversion – from mechanical to electrical. Magnetic fields facilitate this process by inducing currents, but they don't get a spotlight on their own. It's like the unsung hero in the background, making things happen without grabbing the headlines.

Sure, we can dive into the nitty-gritty and dissect the entire energy spectrum within a generator. It's a holistic approach that acknowledges the diverse forms of energy involved. So, I'm with you Pedro Osvaldo Diaz Fustier on analyzing the generator with the full set of energies present. It adds depth to the understanding and appreciation of how these machines truly operate. Magnetic energy might not be the star of the show, but it sure plays a crucial supporting role in the grand performance of electrical machines.

s always conserved in the system; at least personally I feel that reality should be valued and not just a part and separating the black sheep in the flock.

I'm not sure what "black sheep in the flock" means to the author, but magnetic energy is the star of the motor performance! Motors greater than 1/3 hp (250 W) have ferromagnetic backiron for a very good reason. Very small motors can and do operate without backiron, but not without magnetic energy. All motors have a magnetic wave circulating (or translating, for linear motors). Most good motor textbooks describe the energies (and energy gradients) in motors.