Das Projekt "3-MW-Windenergiewandler" wird vom Umweltbundesamt gefördert und von Messerschmitt-Bölkow-Blohm durchgeführt. Objective: Testing and demonstration of a 3 MW wind turbine to gain experience in technical and design approval, operational qualification and economics on the long term. Is the bladed wind turbine second generation large wecs intended for series production, important component innovation ultra light weight composite rotor. Expected annual yield: 6750 MWh. General Information: The design at AEOLUS II wind turbine is based on the existing AEOLUS WTS 75 which has been built on Gotland by Kamewa and MBB. The valuable experience gained will be used in order to improve and reduce cost of the AEOLUS II (WTS 80-3) which will have a nominal power of 3 MW, rotor diam of 80 m and a 86,6 m tower. The 2 blades are built of composite material (GRP/CRP). The nacelle is built in a very compact way thanks to a bevelled gear in the train. This system enables the generator to be placed on the top of the tower and do not yaw with the nacelle. The conical concrete tower has a total weight of 750 tons, with 10 m diameter at the bottom and 4,5 m at the top. It is an upwind type wind turbine with active yaw and fixed hub. Control of power is achieved by changing the pitch of the blades. Nacelle, hub and rotor are self-erecting in order to facilitate O and M. The 3000 kW generator is of asynchronous type connected to the grid via a 6KV-23KV transformer. Operational range of wind speeds is 6 to 25 m/s. Nominal power to be reached at about 15m/s. A detailed measurement phase will follow the installation and the commissioning , during which it will be possible to evaluable the performance of the machine and draw useful conclusions for the commercial machine. This project is a cooperation between MBB and Kamewa (Sweden) for the design and manufacturing, and between MBB and Preusenclektva (DE) for the demonstration phase and the follow-up, when the machine will operate as a power generating plan. The life time of this machine is calculated to be 30 years and the payback time has been estimated to 22 years.