... the final assembly of generators, hubs and nacelle back sections, which are brought together to form complete nacelles for offshore wind turbines - the heart of the wind turbines. The picture shows production at the Danish Siemens plant in Brande. In 2013, Siemens opened the world's largest test center at this location, where large wind turbine components such as generators, main bearings and entire nacelles are tested on special test benches. When a wind turbine is in operation ...