Can a wind turbine have more than 3 blades?

Yes, a wind turbine can have more than three blades, though most modern wind turbines are designed with three blades for optimal efficiency and performance. Additional blades can increase energy capture but may also add weight and reduce rotational speed, potentially leading to mechanical challenges. Some smaller or experimental turbines may use designs with more than three blades for specific applications or environments. Ultimately, the choice of blade number is a balance between efficiency, cost, and design considerations.