Sure, windmills may cost less to build (debatable) but what is the total cost of intermittent production, decimated bird and bat populations, defaced landscape

Sure, windmills may cost less to build (debatable) but what is the total cost of intermittent production, decimated bird and bat populations, defaced landscape and stunted technological progress? If sun and wind are "free", so is nuclear, so is coal. It's the getting them to be useful that's costly.