Note that Withernwick Wind Farm and Extension are already defined in https://www.openstreetmap.org/relation/8396634
Wind farms are unusual because they are the relation of the turbines and not a clear boundary as there is no fence or demarcation on the ground. The standard OSM map doesn't currently display them, but have a look at https://openinframap.org/#11.44/53.8463/-0.1314