| 20090243302 | Optimized rotor for a wind power plant and wind power plant for mounting on a building - A rotor for a wind power plant for mounting on a building, especially with a vertical rotational axis, comprising a rotor hub and at least one rotor blade, with the rotor blade being arranged to cover the whole surface area and having a substantially rectangular shape, comprising a radially inwardly disposed edge, a radially outwardly disposed edge, a radially extending bottom edge and a radially extending upper edge, with said rotor blade being provided with a twisted arrangement in a spiral fashion about the rotor hub, starting from its bottom edge in the direction of its upper edge. Furthermore, a wind power plant with such a rotor. | 10-01-2009 |