You can start with the 1000’s of gallons of petroleum lubrication oils they use in their lifetime, and you can move on to the energy required to manufacture them, which like ethanol, will never be offset by the energy they produce. It’s a net negative. They are not green.So what makes Wind turbines not green?
I know solar panels made from pure silica which takes a crap ton of energy to refine for panels etc. So what is it with turbines? Cost to manufacture, maint cost? or something else?
That’s before we even start to discuss the environmental impact of their existence and operation to Mother Earth and her creatures. They are not green.