[MarcAurel_]

Wind turbine blades can interfere microwave links.

I worked a few years as a telecom engineer in France: wind turbine promoters have to consult telecom operators to prevent disrupting existant MW links with their projects. The usual rule was to observe a 500m clearance between MW line-of-sight paths (1st Fresnel zone) and future wind turbine installations.

Edit: you can read more about all this in this paper: https://castlerockmicrowave.com/wp-content/uploads/Wind-Farm...