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The Science Behind Frozen Wind Turbines And How To Keep Them Spinning Through The Winter Please share this article - Go to very top of page, right hand side, for social media buttons. Even light icing can produce enough surface roughness on wind turbine blades to reduce their aerodynamic efficiency, which reduces the amount of power they can produce, as Texas experienced in February. Frequent severe icing can cut a wind farm’s annual energy production by over 20%, costing the industry hundreds of millions of dollars. Power loss isn’t the only problem from icing, either. The uneven way ice forms on blades can create imbalances, causing a turbine’s parts to wear out more quickly. It can also induce vibrations that cause the turbines to shut down. In the case of extreme icing, restarting turbines may not be possible for hours and potentially days. ....
How to keep them spinning through the winter. Mar 5th, 2021 Ice can be a wind turbine’s worst enemy. AP Photo/Robert F. Bukaty Winter is supposed to be the best season for wind power – the winds are stronger, and since air density increases as the temperature drops, more force is pushing on the blades. But winter also comes with a problem: freezing weather. Even light icing can produce enough surface roughness on wind turbine blades to reduce their aerodynamic efficiency, which reduces the amount of power they can produce, as Texas experienced in February. Frequent severe icing can cut a wind farm’s annual energy production by over 20%, costing the industry hundreds of millions of dollars. Power loss isn’t the only problem from icing, either. The uneven way ice forms on blades can create imbalances, causing a turbine’s parts to wear out more quickly. It can also induce vibrations that cause the turbines to shut down. In the case of extreme icing ....