Great, but do steel mills run on wind power? How much oil, coal and natural gas do you need to build wind turbine?
How much Dysprosium and how much Neodymium does single wind turbine need? Where are new mines for these metal being opened? How much they are going to produce? At what environmental and economical cost?
These metals are the same as used in electric engines. How large portion of their resource are GE and other companies are willing to spend on wind turbines?
These are hard questions.
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