Quote:
Originally Posted by MetroMPG
Regardless of where you place the turbine, the end result will be a net energy loss. There's no free lunch.
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Well, not
strictly true - look up "landsailing". All you have to do is to somehow manage to plan your driving so that you always have a strong crosswind, and you're home free :-)
In some of my Rube Goldberg moments, I've toyed with the idea of a telescoping vertical airfoil that extends when wind conditions are right...