Interesting thoughts, thanks for posting. What supplies the source energy for free to this system? You say it doesn'd need solar panels, which to me is the only direct interface we have to the sun, which is the only free energy source. If the energy into your system is the energy in naturally changing air pressure, which might be charged up by solar, then the energy is not for free, it cost Earth energy that nature had already put to use. So where does the source energy come from, to have no cost, not even to our planet, or does it have cost to the planet?