@selea normal ones? i think https://flowerturbines.com/ are really interesting, too, but i haven't found a quote for them.
@selea
i think i've run across them somewhere here in fedi, but i can't find the post anymore.
do you have some links? i might want to experiment with something like that, if it isn't too expensive for an experiment :)
@bonifartius
Oh neat! Never seen those before!
I was looking at something like this, similar to the flower ones that you sent