You have to think bigger about materials level embodied energy. If you go about looking at energy density without evaluating the feedstock materials and embodi

You have to think bigger about materials level embodied energy. If you go about looking at energy density without evaluating the feedstock materials and embodied energy, your maths won't achieve the desired result. I was doing the math on the back of a napkin, but there's quite a few papers on the topic. www.vaclavsmil.com/wp-content/uploads/15.WINDTURBINE.pdf I might be off by 25M-50M tons, but I think the overall assertion is valid. My belief about how to fix the problems with energy grid: http://engineersf.com/things-humanity-could-do-right-now-to-save-planet-earth-from-climate-change/ http://engineersf.com/things-humanity-could-do-right-now-to-... Any sort of libertarian or free-market approach to this problem will likely fail. This is one of those mission critically deal breakers where human behavior can't be modulated in a desired direction.