The idea is wildly in the wind. This is to use the jet stream that blows between 4 500 15 000 meters and meters, all around the globe to produce electricity by flying wind turbines. In the manner of a kite, they will be secured to the ground by a cable ultrarésistant Vectran son surrounded by two aluminum that will carry a current 20 000 volts to a ground station.
The inventor of the concept, Robert Bryan, Sydney University of Technology, plans to equip each wind turbine rotors 40 four meters long in very light materials. They will serve first as propeller to move the machine to the desired altitude and the blades begin to rotate alone, driven by the jet stream. Robert Bryan has calculated that a wind farm 600 of these devices with a power of each 20 megawatts could power two Chicago. After mock trials, it has partnered with three other engineers to create a California startup called Sky WindPower. They plan to produce within two years a prototype of 200 kilowatts, provided to find 4 million they lack.
Problem: these flying windmills could constitute obstacles to the aircraft, but the inventor contends that there is a couple of balloons in the upper atmosphere without having ever lamented accident