your forgot a bit
if you work out how much energy is used to build then transport erect upkeep and then breakdown and get rid of .. the first 2 yrs of it's life are used up .. never mind how much co2 that creates
these things don't run in low wind can't run in high winds ..
the only thing that it's doing is making fat cats rich energy and construction(old boys club) ..
and do you really think theres no oil about ? just like diamonds it's held back to increase price ..