Senvion launches low-wind 3.4MW turbine with 140-metre rotor

GERMANY: Senvion has unveiled its new 3.4M140 turbine at the Husum Wind 2015 exhibition opening today in Germany.

Senvion's 3.4M140 varient joins its 3XM series

The low-wind 3.4MW turbine with a 140-metre diametre rotor will be made available at hub heights of 110 and 130 metres.

Senvion will use 68-metre blades on the turbine, which the manufacturer said could help produce a 20% higher yield than its 3MW, 122-metre rotor machine. A prototype of the turbine is due to be installed in 2017.

The new turbine will also be fitted with Senvion's 'Next Electrical System' (NES) to help stabilise supply to the grid.

Senvion's NES turbines use a "fully rated" converter and an asynchronous doubly fed induction generator, commonly found in most wind turbines. Previous Senvion models included only a partial converter.

NES turbines also comply with German grid requirements for high-voltage connections due to come in from January 2017.

Senvion was the third manufacturer to present a new low-wind turbine at this year's Husum Wind 2015 trade show. Vestas launched its 3.45MW V136 turbine, while Nordex unveiled a 3.3MW model. GE followed later with its 3.2MW model specifically for the German market.