Energy, Heat & MotionWind Energy
Why Wind Turbines Have Three Blades
Not two, not four: three is the sweet spot
Almost every big wind turbine you pass has three blades. Why not two to save money, or ten to catch more wind?
You'll find out
- How a blade turns wind into power
- Why twice the wind is worth far more
- What goes wrong with two blades
Why it matters
Every turbine is a trade between power, smoothness and cost, and three blades is how it usually comes out.
Play this lesson
Free to play in your browser or on iPhone