This video is taken when WindMax wind generator on the 5. 9 feet test pole and the wind is 10 miles, depending on the weather channel. leads the blades very well and spinning very fast at low noise levels. Imagine a lot more power when this wind generator up to 26 meters! The rotor diameter is 1 4 m or 4 9 feet. While at the same wind speed, the old style wind turbine with mechanical furling with 8 2 foot diameter blades are not running, the leaves barely moved. Instead, head to the wind generator turns, which is very bad. The blades for these old style wind turbines have poor design and such a low efficiency, record it can not power in the wind with the larger rotor area, that is the myth about these blades with larger rotor area, would most people think that the blades with larger rotor area still performs better than blades with smaller swept area, which is completely wrong for the blades will not work with larger rotor area / Spin efficiently as shorter blades can not capture it the power in the wind, and it is not output energy! The energy yield is the energy of the turbine blades is converted into mechanical energy, to the rotor blades rotate, convert to all the power of the wind into mechanical power. The low power run turbine blades do not spin or hardly move, there is no energy output! Rated power output of the old style wind turbines with mechnical furling and low efficiency blades is very deceiving, because the leaves have such low . . .