As wind blows it generates kinetic energy, which is energy from movement. This turns the blades on a turbine, which then causes a shaft (drive shaft) within the system to rotate (view diagram below).

Editor’s Note: Call to Earth is a CNN editorial series committed to reporting on the environmental challenges facing our planet, together with the solutions. Rolex’s Perpetual Planet initiative has ...

The world's first offshore wind farm was installed in 1991 off the coast of Vindeby on the Danish island of Lolland. It included 11 turbines with a capacity of 450 kW each, and the project cost 10 ...