[Hippocrates_Garden]

The main problem with the vertical is the sideways loads on the single bearing on the bottom. The taller the vertical blades, the longer the lever, the more the side load.

The higher the wind speed, the stronger the force, on the lever, then on the bearing while trying to spin. They just wear out faster.

Horizontal turbines, spin, but don’t have much if any side load on the bearing(s). There were a couple of other physics-based problems which have yet to be “solved” thus far, and that I’m not smart or educated enough to remember or understand. I’m all for progress and innovation, heck, love it, but that doesn’t mean everything new or neat, actually works.

That said, at some point, I may get a (horizontal) turbine anyway, but I will do so, fully knowing, it’s an experiment, which if it provides noticeable, or significant output, that is a bonus, but it will go up with little if any expectation, and not factoring it in as a part of a critical supply system.