People have many ways for converting wind energy into a useful form of energy. The most popular way is using wind turbines to make electricity. People also use wind for mechanical power in windmills, pumping water, or propelling ships for sailing. Around the world, there are about eighty countries using wind power with electricity generation of more than 120 gig watts (GW) that is about 1.5% of worldwide electricity usage. Three countries, Denmark, Spain and Portugal, have more that 10% stationary electricity production from wind power.

Wind power is green energy. State level large wind farms are backbones that provide electric power for big area. Small turbines are ideal for isolated locations or produce surplus electricity for large electric network run by utility companies.