Perhaps they are to power the cafe? What flipping other use would 2 have!!!
I for one use Caernarfon quiet a lot and the loss of 02\20 will limit my number of visits - I have the feeling that 2 windmills could just be the start however "someone" may ask why so much money was given to them to put up hangers and offices to "Develop" the airport when they are now potentially taking out the longest runway and with the usual brisk N and NW winds limiting the number of visiting aircraft
I have a feeling that this will be a sign of the new times we will be living in