There are many individuals out there who want to lower their personal carbon footprint with the addition of a wind turbine on their rooftop. However, because of the noise associated with wind turbines, it’s not always a neighbor-friendly addition. British inventor Sweet-Escott has come up with an amazing wind turbine that is silent and hidden from view.
Dubbed the Secret Energy Turbine (SET), the wind turbine looks like an ordinary chimney stack and has vertically mounted blades fixed under the influence of two opposing magnets. As the blades catch the wind and start to spin, they form an airfoil by means of boundary layers.
The uneven current generated by the wind turbine is organized by an electronic load controller, which is then fed into a battery pack, from where a sine wave inverter converts it to AC voltage. The wind turbine is made available in three different variants that can generate between 2W to 2000W depending on wind speed and the size of the wind turbine.
– from ecofriend.org