When the turbine needs to stop, whether for maintenance or dangerously high winds, the blades pitch fully perpendicular to the wind so they produce almost no lift. This aerodynamic braking is the first line of defense. Yet you might notice something peculiar: some turbines stand completely still while others nearby keep spinning. Learn more about the technology behind Elege Wind Turbine systems and their safety mechanisms. Wind speed is sometimes. The most common explanation is simply that the wind isn't blowing hard enough, but turbines also shut down when it's too windy, too cold, during scheduled maintenance, or when the electrical grid can't absorb more power. Here's what's actually happening when you drive past a wind farm and the. Wind turbines may not spin all the time due to various reasons, including the wind's unpredictable nature and the need for a sustained wind speed of 9 MPH or higher. Some turbines may also be shut down for scheduled. Wind turbines are designed for long-term operation, however it's important to keep a look out for signs of wear which can lead to costly downtime. For operators, understanding the most common blade issues and implementing effective prevention strategies is essential to ensure consistent energy.