- What is it? Wind is produced by the energy contained in the air, molecules in movement. The wind can be transformed into useful energy. Wind energy conversion systems are called wind turbines (modern and industrial size machines) or windmills (old-fashioned or smaller machines). - How it works Wind turbines capture the air’s kinetic energy, transforming it first into mechanical and then into electrical energy. In simple terms, the force of the wind hitting the wind turbine’s blades causes the central hub of the machine to turn, thus powering an electric generator. The location of the blades and generator atop…