A HAWT works when the wind forces the rotor to rotate along with the low speed shaft inside of what is referred to as a nacelle. The nacelle is connected to a gearbox which increases the rotational speed inside of the high speed shaft. The high speed shaft is what turns inside of the generator’s static magnets to create electricity. In a basic horizontal axis turbine, the blades are connected to a device called a governor (Power from the Wind, Beaufortcourt.com). The governor’s two main purposes are to control of the speed of the blades, and to adjust the twist, or pitch, of the blades in order to improve performance in different wind conditions. The governor is connected to the main shaft, which connects the blades to the gearbox. The purpose of the gearbox is to amplify the speed of the shaft by converting the torque into additional rotor speed. The gearbox is connected to the generator, which is made up of copper wire and magnets. The wire rotates inside of a magnetic field, which shifts electrons and produces electricity (Wind Power, Aeronautics.nasa.gov).