You fly a kite and put some special shape stuff on the kite (spikes and something I think), and a wire down to earth, and you get a current. Problem is, while there is a potential
difference, you don't have to pull much energy out of the system before the potential difference goes away. It's like having a dam for hydro power with very little water.
There are some videos about the kite thing which explains this in great detail. Until a large scale test has been performed, I'll assume that "your" invention has the same problem.
I am still trying to rap my head around what makes it work. If atmospheric potential difference, then why do they get a result from 15cm. I thought triboelectric after watching vid…
I have no idea. I don't even know what triboelectric is. I thought pointing to that other experiment strengthened my stance of "we still don't have enough data to know this is useful"
Thou shalt not read papers. Thou shalt halfread a headline or two, then thy shalt present thy first impression as Absolute Truth and verbally attack everyone who do not submit to it.