> A 2014 study which looked at the same issue found that 2-megawatt wind turbines installed in Northwest USA paid for themselves in 5-6 months.
> A 2010 analysis of fifty separate studies found that the average wind turbine, over the course of its operational life, generated 20 times more energy than it took to produce. This level was “favourable” in comparison to fossil fuels, nuclear and solar power.