This incredible photograph shows an engineer atop a massive wind turbine. The 3.2 megawatt wind turbine is made by REpower Systems and features a wider rotor diameter and has been optimized for low-wind locations. The hub height of the tower ranges from 93 – 143 meters (308 – 469 ft) and the diameter of the rotor is a massive 115 meters (374 ft). The rotor has a speed of 6.7 – 12.1 rpm (+16%). Unfortunately I don’t have many other details on this fascinating photograph.