Hydropower

Elizabeth T.

Date:2-17-11

Block:4.2

Introduction

Wind is moving air.We can use energy in wind to do work.

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Renewable or Not

As long as the sun shines,there will be wind on the earth. We will never run out of wind energy. It is a renewable energy source. It is also free since no one can own the sun or the air.

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Location

The location of our resource is:Some place have more wind than other. Areas near the water usually have a lot of wind.Flat land and mountain passes are good places to catch the wind.

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Recovery

Today we use big wind turbines to capture the wind. Sometime there are hundreds of wind turbines in one place. This is called a wind farm. Some wind turbines are as tall as 20-story building.

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Uses

Early Egyptians used the wind to sail ships on the Nile River.People still use wind to move them in the sail boats. The wind makes electricity.

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Environmental Impact

Wind is a clean energy source. Windmill don’t burn fuel,so they don’t pollute the air.Older windmill were sometime very noisy,but the new ones are not. Wind is a safe,clean energy source for making electricity.

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Advantages and Disadvantages

Advantages: Wind is free,wind

farms need no fuel. The land beneath

can usually still be used for farms.

Disadvantages: The wind is not

always predictable. Some people feel

that covering the landscape with these towers is unsightly.