This document discusses energy transition and wind energy. It notes that energy transition means shifting to low-carbon energy sources, with the current transition being the fourth major shift away from fossil fuels. Wind energy provides a carbon-free source of energy and does not produce pollutants from fossil fuels or nuclear energy. Wind turbines convert the kinetic energy of wind into mechanical energy to generate electricity for transmission to power grids. Wind power capacity has more than doubled in the last two decades as costs have declined significantly.