Designing a Better Windmill

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Designing a Better Windmill Invelox can produce the same amount of power as a commercial wind tower at a third of the height—60 to 90 feet tall—and gather breezes travelling under two miles per hour, far less than the speed required to spin the blades of a giant windmill. Invelox inventor Daryoush Allaei has designed a collapsible model made of aluminum and fabric that can be air-dropped for assembly in disaster areas or military outposts. Of course, a more durable version can be used to supply energy to established buildings and communities as well