If you feel a whole wind mill like this one https://en.wikipedia.org/wiki/De_Gekroonde_Poelenburg https://en.wikipedia.org/wiki/De_Gekroonde_Poelenburg shake wh

If you feel a whole wind mill like this one https://en.wikipedia.org/wiki/De_Gekroonde_Poelenburg https://en.wikipedia.org/wiki/De_Gekroonde_Poelenburg shake when it is in operation, then that is very far from a slow and steady operation. In fact, most wind turbines feel far more 'slow and steady'. This one is not very old, only 150 years. This one (https://en.wikipedia.org/wiki/De_Otter,_Amsterdam https://en.wikipedia.org/wiki/De_Otter,_Amsterdam) is almost 400 years old. But I have not been in it. I assumed that with a 20 year old wind turbine, the money you make from the electricity it produces would be more than maintainance costs. Even if better turbines exist, if you can't build a new one in the same place, it might make sense to keep it running. Of course, if the maintainance costs are indeed high enough that you don't make any money, then it make sense to take it down.