Hybrid towers for wind power plants in precast construction - Efficient electric power generation

摘要

Large wind power towers measuring up to far over 100 m in height are of crucial significance for efficient wind exploitation and electric power generation. Towers of these dimensions are virtually impossible to realize efficiently with conventional construction methods. This prompted the building contractor Max Boegl, a leading German precaster, to develop hybrid towers. Only the peak of the tower is made of steel, the lower two-thirds of the structure consisting of prestressed concrete. The first wind power plant erected in this manner was put into operation in 2010 near the city of Neumarkt in Bavaria. Today, Max Boegl Wind AG supplies series-produced hybrid towers for different plant types with outputs ranging from 2.4 to 4.5 megawatt and rotor diameters of 100 to 128 m to leading manufacturers of wind power plants. The hub heights vary between 120 and 145 m. By now, Max Boegl has already installed more than 300 hybrid towers based on the Max Boegl system (Fig. 1).