Senvion, one of the world’s largest manufacturers of wind turbines, will be presenting its highest yield onshore wind turbine for low-wind locations at HUSUM Wind. The Senvion 3.4M140 is equipped with a sound-optimised blade profile and a new pitch control system to reduce turbine load. The Senvion 3.4M140 will be available from 2018 in hub heights of 110 and 130 metres. The longer 68-metre blades at these tower heights alone permit high yields at low-wind locations such as forested and mountainous areas.
Senvion CEO Andreas Nauen stresses the following: “Wind energy is competitive – in the most diverse of places. By offering wind turbines with longer rotor blades that can be operated even more profitably and cost-efficiently at great heights, Senvion is proving that even low-wind locations inland can be attractive.” Compared with the 3.0M122, the 3.4M140 generates up to 20 per cent greater yields, depending on the location. A load-reducing pitch control system ensures a cost-efficient design. The service life is also extended to 25 years. This further development is thus making a major contribution to reducing the levelized cost of energy – and thereby to the competitiveness of wind energy.
The mass-produced optimised blade profile with integrated serrations also reduces the sound power level of wind turbines. Andreas Nauen says: “Wind energy is part of our future. Further developments such as serrations are a big step forwards and even allow larger turbines to adapt to our requirements. Despite its size, the Senvion 3.4M140 will be one of the quietest turbines on the market and we will continue to optimise this technology.” Senvion will install the prototype in 2017.
The Senvion 3.4M140 is equipped with the Next Electrical System (NES), which Senvion introduced for its 3.XM series at the HANNOVER MESSE 2015. The gearbox-based concept, which features an asynchronous generator and a fully rated converter, permits stable grid feed-in and already meets the grid requirements in the various markets for 2017 ahead of time.