Creating Wind

Differences in air pressure cause the wind to blow. Specifically, wind blows as air moves from a place of high air pressure to a place of low air pressure. Winds grow stronger as differences in air pressure increase. Things that affect air pressure and wind patterns include how the sun heats the atmosphere, terrain, water bodies, and vegetation.The kinetic energy in the wind depends on the density of the air, i.e. its mass per unit of volume. In other words, the “heavier” the air, the more energy is received by the turbine. Thus density factor is affected by air temperature, moisture, wind intensity, wind patterns, and the terrain. When wind farm sites are selected, wind density is an important factor in site selection. Increased air density results in higher wind turbine efficiency.