Without Going Into The Obvious Problems Of Wind Farms,

no wind = no generating, 

there is one other problem that few people that raved over them talk about, as wind-farms age their blades will have to be replaced, here is a undeniable, indisputable fact, almost a quarter of a million windmills worldwide will need to be replaced by 2030, new generation rotor blades made of glass or carbon fibre composite material have average lifespans of between 10 and 25 years, at current growth rates by 2034, there will be about 200,000 tonnes of rotor blade composite material produced annually, worldwide, and guess what? wind turbine blades are totally unrecyclable! with one exception they all have to go to landfill sites, strange how the greenies and tree hugers left that fact out when pushing for cheap renewable energy! but hope is on the horizon, some kids can enjoy using them in parks made from the blades, so that's alright then, for further reading on the not talked about problem of windfarms have a look at these publications, GenVind Innovation Consortium / No Tech Magazine / Wind Power Engineering / Wind Power Monthly, there is of course one factory that process the blades, but only one, given the problem I would have thought that every country would have a number of blade reprocessing plants, so I guess there is no profit it or the reprocessing plants have to be state/government subsidised.