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Nordex SE has unveiled the fourth generation of its multi-megawatt wind turbines. Called "Generation Delta," the series includes new versions of the company's N117/3000 3.0 MW turbine and N100/3300 3.3 MW machine.

The N117/3000 features a 20% increase in nominal output over the previous version of the turbine, and is designed for medium wind speeds. For the new version of the turbine, Nordex increased the rotor diameter by 17 meters, which the company says resulted in an increase of about 37% in the rotor sweep and a 10% jump in full load hours.

Meanwhile, the N100/3300 has an installed capacity of 3.3 MW and is designed for high wind speeds. It has a rotor diameter 10 meters larger than its predecessor, driving the swept area of the rotor up by 23%, Nordex says.

In addition, the Generation Delta’s turbines come with taller hub heights per wind class, the company says. Therefore, for the first time, Nordex is offering a steel tube tower with a hub height of 120 meters for medium-wind-speed locations. The N100/3300 is now also available on a steel tube tower, with a hub height of 100 meters, for strong-wind sites.

Nordex notes that the Generation Delta turbines come with the company’s anti-icing system for the blades, fitted to the N117/3000 and the N100/3300. The system heats the aerodynamically most important surfaces of the rotor blades, thus reducing ice formation, the company explains.

Nordex will begin delivering Generation Delta turbines at the beginning of 2014.



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