How fast do the end of wind turbines go? These wind turbines also have a controller that keeps the rotor speeds from exceeding 55 mph to avoid damage in high winds. (While the rotor at the hub may only be spinning at 55 mph, the wind blade tips (depending on the lengths of the blades) can be moving much faster -- like 180 mph!)Wind turbines are an increasingly popular source of renewable energy, and as such, they have become a common sight in many parts of the world. One of the most common questions that people have about wind turbines is how fast the tips of the blades move. The answer to this question depends on several factors, including the size of the wind turbine and the wind speed. The speed of the tips of a wind turbine's blades is called the tip speed ratio. This ratio is calculated by dividing the speed of the blade tips by the speed of the wind. The tip speed ratio is important because it affects the efficiency of the wind turbine. If the tip speed ratio is too low, the wind turbine will not generate as much power as it could. If the tip speed ratio is too high, the blades may experience too much stress and wear out quickly. The tip speed ratio of a wind turbine is typically between 6 and 7.5. This means that the tips of the blades are moving at a speed that is 6 to 7.5 times faster than the speed of the wind. For example, if the wind speed is 10 miles per hour, the tips of the blades may be moving at a speed of 60 to 75 miles per hour. The speed of the tips of the blades is also affected by the size of the wind turbine. Generally, the larger the wind turbine, the slower the tips of the blades will move. This is because larger wind turbines are designed to capture more energy from the wind, and so they don't need to spin as quickly to generate the same amount of power. It's also important to note that the tips of the blades on a wind turbine can move at different speeds depending on their location. The tips of the blades that are closer to the center of the turbine will move more slowly than the tips of the blades that are further away from the center. In terms of safety, it's important to note that the tips of the blades on a wind turbine can be dangerous if someone comes into contact with them. For this reason, wind turbines are usually located in areas where there is limited human activity. Additionally, most wind turbines are equipped with safety features that will shut them down if the wind speed exceeds a certain threshold. In conclusion, the speed of the tips of a wind turbine's blades is an important factor in the efficiency of the turbine. The tip speed ratio is typically between 6 and 7.5, and the speed of the tips is affected by the size of the wind turbine and the location of the blades. While wind turbines can be dangerous if someone comes into contact with the tips of the blades, they are generally safe and are an important source of renewable energy.