A 450 kW prototype wind turbine from Mitsubishi Heavy Industry (MHI) of Japan has been bought by wind power station developer and operator, Winkra Energie of Hannover. Winkra says the prices for European 500 kW and 600 kW machines are too high to economically operate projects on low wind speed sites inland without state aid. Once a building permit has been granted, the pitch controlled MHI turbine, with a 50 m diameter and 39 m hub height, will go in the ground at Winkra's Süderdeich wind station. If it operates satisfactorily and receives a type certificate, Winkra will consider using it in future projects. In its drive to reduce turbine prices, Winkra has begun negotiations with not only Mitsubishi but also European manufacturers for the purchase of large numbers of turbines with corresponding price rebates. Managing director Uwe Carstensen says the talks concern deliveries of 150 to 200 turbines in the 500-600 kW range. Winkra develops projects for customers as well as for itself.
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Senior Renewable Energy Analyst (WindGEMINI Product Lead) DNV GL Bristol (City Centre), City of Bristol