The background ones in the 1st & 3rd photo: two each from the same farm of 5 Enercon E-70 units. One of them (the one on right in the 3rd photo) is just beside the tracks, once we stopped right there, and it was the first time I heard turbine noise separate from wind noise (from this gearless unit, only aerodynamic noise, a swoosh like a landing airplane but much more silent).

The foreground one in the 1st and the three in the 2nd photo: I think those are REpower MM82s from a farm of 12 turbines. The logo indeed belongs to developer Wien Energie.

There were Vestas and Gamesa units in the area, too, but I couldn't catch them on zoomed-in photos.

_{*Lunatic*, n.
One whose delusions are out of fashion.}