Nordex SE

Nordex installs first N90/2500 in the US

New control technique “Nordex AP” applied for international patents

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new product

Norderstedt (euro adhoc) - The date is set for the beginning of June 2007, when the first N90/2500 HS is due to go on grid in North America. In Hewitt, Minnesota, one of the most powerful turbines in the USA will then be producing clean energy. In 2006 the average capacity of the 1,532 machines installed in the US amounted to around 1.6 MW. The capacity of the turbine now installed by Nordex stands at 2.5 MW. The operator, Wing River Wind LCC, will be feeding the machine┬┤s annual yield of 8.828 MWh of electricity into the grid belonging to Minnesota Power. After implementation of this initial Nordex turbine, 21 additional turbines are planned to be installed in Minnesota resulting in a wind development with a total installed capacity of 55 MW which is expected to be operational by 2009.

With the installation of the N90/2500 wind turbine, the Nordex Group has completed its first project involving a multi-megawatt turbine in the USA on schedule. This turbine is equipped with state-of-the-art solutions: among others, the new control technique "Nordex AP" comes into operation. Two automatic controls - the torque control and the pitch control - are coupled for improving the control dynamics, for optimizing the hysteresis behaviour and for covering particular power optimized operational conditions. For this further development of the Nordex Control 2 and the converter technology several international patents have been applied.

Further, a personal hoist makes it possible to reach the nacelle in comfort, a Condition Monitoring System acts as an early warning system for all-round protection against unforeseen component wear. Ice sensors and an automatic fire-extinguishing system round off the turbine's safety package. The electrical features of the N90/2500 kW fulfill the local grid connection rules and the turbine is certified and supplied as a 60 Hz version.

The N90/2500 is a wind turbine that has proved itself in operation, and which, with a rotor diameter of 90 metres, achieves high yields across the entire wind spectrum thanks to its designed performance characteristics. The N90/2500 HS now installed is the basic "high speed" version for strong-wind locations. In Hewitt the average wind speed at 80 metres hub height is approx. 8 m/s.

The Nordex N80/N90 series is currently one of the top-selling wind turbines made by the Nordex Group. The successful installation of the wind turbine in the USA underlines Nordex┬┤s international strategy to extend its operations in North America. Here in particular, the high average wind speeds make the installation of wind parks comprising large and powerful turbines an attractive investment.

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ots Originaltext: Nordex AG
Im Internet recherchierbar: http://www.presseportal.ch

Further inquiry note:
Ralf Peters
Head of Corporate Communication
Tel.: +49 (0)40 50098 522
rpeters@nordex-online.com

Branche: Alternative energy
ISIN:      DE000A0D6554
WKN:        A0D655
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