wind turbines


All the power of a maxi turbine

All Tozzi Nord wind turbines have aerodynamic and mechanical features borrowed from maxi wind technology, such as active pitch and yaw control, to maximize wind harvesting and energy production under all operating conditions, including low wind.

High performance even with low wind conditions

The efficiency of the Tozzi Nord innovation lies in the special “geometry” of the blades, which are entirely “made in Italy”.

The main difference in the blades of the Victory family is in their tip, which is designed to optimise energy harvesting based on their diameter. This makes it possible to be sure that the entire blade in all its parts from root to tip actively contributes to the harvesting of the wind, thus optimising energy production. This is a major point of difference from wind turbines of the same output from other manufacturers, which are fitted with extenders. These are inactive components made of metal that are fitted between the hub and the blade and that play no active part in harvesting the wind.

  • Greater Energy production compared with stall controlled turbines (no pitch control) of the same rating and rotor diameter: active pitch control wind turbines can generate the maximum power in all wind conditions in which the available resource permits (between Vrated and Vcut-out); stall controlled turbines reach their rated power in only one specific wind condition.
  • Greater safety thanks to the ability to move the blade into the parking position in high wind conditions.
  • Lower loads on the blades, tower and foundation in extreme winds due to the possibility of minimizing the blade resistant section; in stall controlled turbines, the position of the blades is fixed and therefore they always offer the highest resistant area to the wind.

Comparison of the power curve of a Tozzi Nord turbine with active pitch control and that of a turbine with the same power rating with stalled pitch control

  • This ensures a better alignment of the turbine to the wind compared with an up-wind turbine with a rudder, thus maximising energy harvesting.
  • It enables the rotor to intercept an airflow that is not disturbed by the nacelle or the tower, unlike a down-wind turbine.
  • Better management of the applied torque.
  • Ability to vary the rotor’s rotation speed in order to maintain the optimal aerodynamics until the rated power has been reached (full-variable turbine).
  • Optimisation of the generator’s operation (unit power factor) and greater conversion efficiency even in intermediate operating conditions.