The challenge

Every year a considerable number of wind turbines are losing a rotor blade due to material failure or fatigue. The rotor blade as a whole or parts of it fly around as dangerous projectiles. How can this danger be eliminated?

The invention

The RES-Rotor Blade is prestressed by an internal cable attached to the rotor head at one end and to several longitudinal sections of the rotor blade. In case of structural failure the blade or its pieces are kept aligned.

The advantages

  • Safety line for a rotor blade
  • Strengthening the reinforcement of a rotor blade by an additional tension member in the hollow space of the blade

The applications

  • Wind turbines of all sizes