Wind energy is actually the kinetic energy of the air, a form of conversion of solar energy. Because solar radiation causes uneven heating of various parts of the earth's surface, it causes uneven pressure distribution in the atmosphere. Under the action of the horizontal pressure gradient, the air moves in the horizontal direction to form wind. The total reserves of wind energy resources are very huge, and the technically exploitable energy in a year is about 5.3X10^13 kilowatt hours.
Wind energy is a renewable and clean energy with large reserves and wide distribution. However, its energy density is low (only 1/800 of water energy) and unstable. Under certain technical conditions, wind energy can be developed and utilized as an important energy source. Wind energy utilization is a comprehensive engineering technology that converts the kinetic energy of wind into mechanical energy, electrical energy and thermal energy through wind turbines.
Wind energy is a source of clean energy:
Wind energy facilities are improving day by day, and mass production reduces costs. In the right location, the cost of wind power generation is lower than that of other generators. Wind energy facilities are mostly non-three-dimensional facilities that can protect the land and ecology. Wind power is a renewable energy source that is environmentally friendly and clean. Wind power is energy-saving and environmentally friendly.
The ecological problem of wind power is that it may disturb birds. For example, the grouse in Kansas, USA, have gradually disappeared after the emergence of windmills. The current solution is offshore power generation, which is more expensive but also more efficient.