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Technology: Four low-wind launches

Higher towers, longer blades, quieter and with increased capacities were highlights of new models launched by four global turbine makers at Husum, Germany in September.

Vestas, GE, Nordex and Senvion are all chasing a growing market of low-wind sites, especially in Germany and northern Europe.

Vestas revealed its V136-3.45MW turbine, an upgrade to the V126, with new 66.7-metre single-piece slender rotor blades, and an innovative large-diameter tower (see page 34). Series production is planned for 2017.

Nordex added a larger capacity version of its N131 low-wind turbine. The uprated turbine is now 3.3MW, up from 3MW, and will be available from mid 2016.

GE brought out a lowto medium-wind 3.2MW turbine with a 130-metre rotor diameter specifically designed for the German market, and available at end 2016.

And Senvion also showed its new 3.4M140 turbine. This is a larger rotor version of its 3.4M104 turbine, using 68-metre blades. This model will not be available until 2018.


Another low-wind model, while not new, is newly available in Germany. Spanish manufacturer Acciona opened a sales office in Mainz to sell its AW3000 3MW platform, including a low-wind model, in the country. Germanyavailable in the country for the first time.

New low-wind turbines launched at Husum Wind, Germany September 2015

Manufacturer Capacity (MW) Blade/Rotor Length (metres) Hub Height (metres) Volume (dBA)
Vestas V136-3.45 3.45 66.7/136 149/160 105.5
Senvion 3.4M140 3.4 68/140 110/130 104
Nordex N131 3.3 65.5/131 134/164 104.5
GE 3.2-130 3.2 63.7/130 Four, from 85-155 104.5

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