For a single unit project or workshop thing to make, just because, sure... Maybe? But for 4900 euros? What are they smoking? I'm rather skeptical of the rendering shot of dozens of these in a bare field.

The mechanical cost and complexity and maintenance issues will surely be more costly and hassle prone over a 5-10 year time span than buying three 400W PV panels (1200W STC rating) and mounting them using some similar hack job DIY ballasted ground mount.

The rotating/moving thing at ground level also seems like a good way to mangle pets, wildlife and small children.

If you really want a "1kW" wind turbine? There's a reasonable number of different chinese domestic manufacturing sources for vertical axis turbines that are nominally rated at 1kW in a brisk wind. And you can mount them on a thick pole 3 meters off the ground so that nobody can stick their arm into it.

Chinese souces? The EU recently introduced additional taxes on China because we’re now supposed buy “superior EU products”, it’s for our own good because according to Ursula Chinese products are “low quality” and “dangerous”. Better trust the politicians on this one, the 5k euro AI slop wind turbine is clearly the better and safer choice.