I solved the worlds problems and have mounted a giant windmill on top of my suv. Getting it started is a problem (always park on a downhill street) but once that baby is runnin' ya can't stop her, creates it's own power (as long as you never stop and run at 54 mph at all times). The only other drawback I've found so far is low bridges, so plan your trips accordingly. My apologies since this is about windmills maybe i should have posted it in the "winged" section, sorry. As Rush says, once they get a 747 with battery power, then we'll talk. bob.