A Primer About Wind On Global Wind Day - CleanTechnica

Global Wind Day, observed annually on June 15, aims to raise awareness about wind energy’s role as a clean, renewable, and sustainable power source. Wind is generated by the uneven heating of the Earth’s surface by the sun, causing air to move from high to low pressure areas, creating wind. This natural phenomenon has powered human activity for millennia, from ancient Egyptian sailboats to modern wind turbines that convert kinetic energy into electricity without greenhouse gas emissions, thus supporting the global transition to net-zero carbon emissions. Wind turbines, typically three-bladed and mounted on horizontal axes, vary in size and capacity—from 100 kilowatts to 12 megawatts—and can be installed in diverse environments including land, offshore, and deep waters with floating designs. Key factors influencing electricity production include wind speed, blade radius (with power increasing exponentially as blade size grows), and air density, which depends on altitude, temperature, and pressure. The wind energy sector also presents significant job growth opportunities; for example