How Wind Power Works (Blades, Gearbox, Generator)
Wind into rotation, rotation into electricity
1:00 · 720p · With AI narration and captions. This sample was made with the same system as this service.
Narration (full text)
Click a time to play from that scene.
How Wind Power Works
Let's see how wind power turns the force of the wind into electricity.
Wind Turbine Parts
A wind turbine has blades that catch the wind, a nacelle that holds the generator, and a tower that supports it all.
2× Wind Speed, 8× Energy
The energy in the wind is proportional to the cube of wind speed. When wind speed doubles, the energy becomes 8 times greater.
Wing Shape Creates Lift
A blade's cross-section is shaped like an airplane wing, so the wind creates lift and the blades turn.
Gearbox and Generator
The rotation is slow, so many turbines speed it up with a gearbox, then a generator turns it into electricity.
Face the Wind, Set the Angle
The nacelle turns to face the wind, and the blade angle adjusts the output. In strong winds, the blades are angled to stop the rotor.
Power to the Grid
The electricity is adjusted by a converter and a transformer, then sent to the power grid.
Wind → Rotation → Electricity
The force of the wind turns the blades, and that rotation makes electricity.
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