Wind Energy

Wind energy is power we get from the wind. Wind is just air that is moving. When wind blows, it has lots of energy. People use tall machines called wind turbines to catch this energy. The turbines look like giant pinwheels. When the wind pushes the blades, they spin around. The spinning turns a machine inside that makes electricity. This electricity can light up our homes and run our TVs. Wind energy is clean. It does not make smoke or dirty the air. It is a great way to help our planet stay healthy.

How Wind Turbines Work

A wind turbine has three big blades on top of a tall tower. The blades can be longer than a school bus. When the wind blows, it pushes the blades and they spin. The blades are connected to a machine called a generator. The generator turns the spinning into electricity. Then the electricity travels through wires to homes and schools. The taller the tower, the more wind the blades can catch. That is why wind turbines are so tall.

Why Wind Energy Is Good

Wind energy is good for Earth. It does not use coal, oil, or gas. Burning those fuels makes dirty smoke. Wind makes no smoke at all. Wind will never run out, because the sun and Earth keep making more wind every day. Many countries build big groups of wind turbines called wind farms. Some wind farms are on land. Others stand out in the ocean. Wind farms can power thousands of homes. Using wind helps keep our air clean for people, animals, and plants.

Fun Facts

• The blades of a big wind turbine can be as long as half a soccer field.
• People have used wind power for over 2,000 years to sail boats and grind grain.
• One big wind turbine can make enough power for about 1,500 homes each year.

Did You Know?

The biggest wind farms in the world are built out in the ocean, where the wind blows strong and steady all day and night.