Development of the 5 MW Multibrid offshore turbine is running to plan, according to German manufacturer Pfleiderer Wind Energy. The prototype is scheduled to be installed in the autumn at a site north of Bremerhaven, where Pfleiderer foresees building an assembly and service facility for offshore turbines, according to the company's Rolf Werner. The company has received "positive signals" from the Bremerhaven authorities that its permit application will be granted. The prototype will be built onshore on a steel tripod foundation designed for offshore use. An invitation for tenders to build the specially down-sized foundation will be issued in February or March, he adds. The 5 MW hybrid drive design was developed by German Aerodyn Engineering. Pfleiderer acquired all patents, licences and brand name rights for the Multibrid in 2000. Blades for the machine, which will span 116-120 metres, will be built by German NOI-Rotortechnik. Despite the emphasis on offshore use, Pfleiderer is also looking at the onshore market, though Werner acknowledges that local resistance to turbine hub heights exceeding 100 metres could be "problematic."
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