Nordex turbines generate 12% higher yield at moderate and light wind sites

The sister model of the new N117/3600 turbine, the N117/3000 with 3 MW capacity. (Photo: Nordex SE)
The sister model of the new N117/3600 turbine, the N117/3000 with 3 MW capacity. (Photo: Nordex SE)

The manufacturer Nordex launches two new turbines – one for sites with moderate wind conditions and one for sites with light winds. Both turbines have a 20% higher-rated output than their sister models and therefore can produce an up to 12% higher annual energy yield.

Both turbines are based on the multi-megawatt Generation Delta platform and have a capacity of 3.6 MW each. The N117/3600 is suitable for moderate wind sites, while the N131/3600 is designed for lightwind sites. Additionally, the turbines have the lowest sound emission levels in their class: 106.4 decibels maximum. This is very close to the noise levels of the sister model N117/3000, which has sound emissions of 105 dB(A), but a 20% lower rated output than the N117/3600.

Nordex also offers both machines with serrations on the trailing edge of the rotor blades, which were designed to reduce the sound emissions by an additional 1.5 dB(A) in each case. If required the turbines can be operated in reduced-noise modes, which makes them suitable for noise-sensitive markets, such as France, Germany, Scandinavia and parts of Great Britain.

The higher-rated output of the two turbines has a positive effect on their annual energy yields. “With these turbines customers can produce an up to 12% higher yield. It is our declared aim to make electricity production from wind energy increasingly economical by means of our technical developments. By 2018 we at Nordex want to reduce the cost of energy by 18%. These two turbines represent a major step in this direction as ultimately they make wind-generated electricity more profitable,” says Lars Bondo Krogsgaard, CEO of Nordex SE.

Due to the strong demand for turbines with high hub heights Nordex is currently having its 141 m tower certified for IEC 2 sites as well. The company therefore offers the N131/3600 with tower heights of 84 to 112 m, for Scandinavia tower heights of up to 134 m are offered. The N117/3600 is available with tower heights from 91 to 141 m.

The company plans to install the first of each of these new turbine types before the end of 2016. The series ramp-up for both turbines is scheduled for summer 2017. The type test results will be available this year and the type certificates are expected in mid-2017.

Tanja Peschel / Nordex SE

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