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EddieM
Wind power is in heavy use and has been for ages now. In the EU it produced more power last year than nuclear power did. The first wind farms are being decomissioned already. Although restoration isn't needed, they're just replaced with better newer ones.
I'm not sure what operational costs haven't been demonstrated.
The damage to the environment isn't zero but it is a pittance compared to any other power source you'd care to mention.
No it not, they're responsible for terrible wildlife impact, plus you really can't compare something that's in, and has been in operation for decades, with something that's never been built.