The source of energy is heat energy of the air. Immediately there appears a suspicion of the second law of thermodynamics breach. ===> But this law is valid for closed systems. In our case the air heat energy is replenished by Sun.
There exists a convincing analogy to the presented generator, removing
suspicion of the said law breach – the heat pumps and a whole industry for
The presented generator acts like a heat pump, "pumping" energy from
the air. But it doesn't need, contrary to the existing heat pumps, an
additional external energy source.