Wind machines, also known as wind turbines, are devices that convert the kinetic energy of wind into mechanical energy. This mechanical energy can then be transformed into electricity, making wind machines a key component of renewable energy systems. They typically consist of large blades mounted on a tall tower, which rotate when the wind blows. These machines are often grouped together in wind farms, where multiple turbines work in unison to generate power. Wind machines are considered environmentally friendly because they produce clean energy without emitting greenhouse gases, contributing to efforts to combat climate change and reduce reliance on fossil fuels.