Oh no. Nextera Energy, according to [1] is "... one of the largest wind and solar energy developers in North America". According to the article, 800 metric tons

Oh no. Nextera Energy, according to [1] is "... one of the largest wind and solar energy developers in North America". According to the article, 800 metric tons of concrete go into building a wind turbine. Replacing all of the fossil fuel based power generation in the USA could require one million wind turbines according to some sources! My own back of the envelope calculations indicate that we would need close to 500,000 wind turbine to be built. I suppose that additional infrastructure and changes to the power grid for such a massive number of turbines could require addition concrete as well, spelling doom for sand. [1] http://ontario-wind-resistance.org/2013/04/17/nextera-energy-uses-over-800-metric-tons-of-concrete-per-wind-turbine/ http://ontario-wind-resistance.org/2013/04/17/nextera-energy...