Also not sure of that stat but I know of another -
The amount of energy it takes to fabricate, install, and connect a wind turbine is equal to the turbines 10 year output (under ideal conditions).
The superior intellects of the green movement will not answer the question of environmentally safe battery disposal in the millions which will be plaguing the world very soon.
That’s an interesting statistic. Is there a ready reference to that?
And how about the cost benefit ratio of these wind mills?