Ash only once when the filters failed. You’d occasionally get “power station frost”. If the wind was in the right direction on freezing days moisture from the cooling towers would freeze to give a 100m wide avenue of thick haw frost. There’s a lot of big transmission lines that aren’t pretty and buzz when it rains. (wind/solar don’t need lines this big)
Which part of Kent? I hope it’s not hanging around the wreck of the SS Richard Montgomery!