Based on the search results, here are the typical operating wind speeds for an average commercial wind turbine:
Cut-in Speed (Start)
3-4 m/s (7-9 mph) – This is the minimum wind speed at which the turbine overcomes friction and begins rotating to generate electricity.
Rated Speed (Optimum)
12-15 m/s (25-35 mph) – At this speed, the turbine operates at maximum efficiency and produces its full rated power output. Most turbines are designed to achieve peak efficiency around 8-12 m/s, where they extract the most energy from the wind.
Cut-out Speed (Shutdown)
20-25 m/s (45-55 mph) – When wind speeds exceed this threshold, turbines automatically shut down to prevent structural damage to the blades, generator, and other components. Some turbines can operate up to 30 m/s before reaching their survival speed limit.
Between the rated speed and cut-out speed, the turbine uses blade pitch control to maintain constant power output and prevent overloading, even as wind speeds continue to increase. Below the cut-in speed, the turbine remains idle and generates no power.
