How does wind spin those giant turbines? It seems like even high-speed winds wouldn’t move it very quickly with how heavy the turbine blades must be.
In: Planetary Science
The large commercial turbines are typically designed to start moving at 10-15 mph winds, but do their best work between 25 and 55 mph. Many of them have a way to slow themselves down or stop if the wind gets too strong.
The size of the blades are very large, which means they have a lot of surface area and since it’s common to have 3 blades total this means there is 3 times the surface to catch the wind; or another way to look at it is each blade only has to do 1/3 of the work to help spin.
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