Looking more like a whirly gig than a wind turbine, the Energy Ball is a new Swedish wind turbine specifically designed to be quiet and efficient. Home Energy, the company that created the Energy Ball, primarily designs green energy systems for the home.
This new wind turbine utilizes the Venturi effect. One example of the Venturi effect is the increased wind speed of winds funneled between buildings. The unique design of the Energy Ball funnels the wind through the spherical blades increasing the energy harvested. Taking advantage of this principle allows this wind turbine to generate at wind speeds as low as 2 m/s or 4 mph.
The Energy Ball is also extremely quiet making it more acceptable to neighbors and zoning boards. Since this wind turbine is not your typical three bladed giant, it may also gain points in the looks department. The design looks fun and whimsical rather than utilitarian.
clipped from tech.blorge.com
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