Wind Wind Energy/PoweEnergy/PowerrBy John OnukoguBy John Onukogu

Wind power Defined Wind power Defined BrieflyBriefly The use of wind generators to create The use of wind generators to create

electricity for either private or public electricity for either private or public energy consumptionenergy consumption

It is a completely clean, environmentally It is a completely clean, environmentally safe, renewable, energy source safe, renewable, energy source

First One Must Know Wind First One Must Know Wind Wind is created when hot air rises, Wind is created when hot air rises,

decreasing the atmospheric pressure decreasing the atmospheric pressure near the Earth’s surface, which pulls in near the Earth’s surface, which pulls in cooler air to replace it. cooler air to replace it.

That movement of air is called wind and That movement of air is called wind and it occurs because the solar radiation it occurs because the solar radiation from the sun heats the Earth’s from the sun heats the Earth’s atmosphere at different amounts and atmosphere at different amounts and speeds speeds

How Does Energy Fit InHow Does Energy Fit In The hot and cold movement of air The hot and cold movement of air

produces kinetic energy—the energy produces kinetic energy—the energy created whenever mass is in motioncreated whenever mass is in motion

Using the right technology the kinetic Using the right technology the kinetic energy in wind can be converted into energy in wind can be converted into other forms of energy such as electricity other forms of energy such as electricity

What Technology is UsedWhat Technology is Used The main and most important device The main and most important device

that alternative energy people use is the that alternative energy people use is the Wind TurbineWind Turbine

It consists of a large propeller blade, a It consists of a large propeller blade, a generator/gearbox, and a tower holding generator/gearbox, and a tower holding them upthem up

Define a Wind TurbineDefine a Wind Turbine A machine used to harness energy by A machine used to harness energy by

having a large vane wheel rotated by having a large vane wheel rotated by the wind to generate electricity.the wind to generate electricity.

The ProcessThe Process Incoming wind blows the propeller Incoming wind blows the propeller

round, which turns the generator to round, which turns the generator to produce electricityproduce electricity

AdvantagesAdvantages Wind is free of cost and fuel is not Wind is free of cost and fuel is not

required in wind farmsrequired in wind farms The land below can still be used for The land below can still be used for

farming farming Good way to supply energy to windy Good way to supply energy to windy

yet remote areasyet remote areas

More AdvantagesMore Advantages Wind energy produces no waste nor Wind energy produces no waste nor

green house gases into the environmentgreen house gases into the environment Using new technology wind can be Using new technology wind can be

harnessed more efficiently harnessed more efficiently Wind farms are also able to be used as Wind farms are also able to be used as

tourist attractions tourist attractions

Tourist Attraction Wind farm in Beer

Creek, PA People can come

there to see the farm

Disadvantages Wind turbines are noisy like a family car

going 70 mph Wind is not constant. There can be days

without wind The amount of wind available limits the

locations where farms can be built

More Disadvantages People protest that wind farm land

should not be messed with, yet should be natural

Some people find wind farms to be unnecessarily big and unattractive

Wind power currently needs to be more efficient

They’re Big Wind

generators are colossal so they can get hit by lightning pretty easily

Geography of Wind Farms

Locations Areas with large wind speeds (electricity

generated by wind speed cubed) Open farm land at the top of round hills

More Locations They can also be placed in open plains

and in between the gaps of mountains A relatively new area to place wind

turbines and generators are offshore coasts

History Farmers have always been using wind

energy to pump water out of wells Windmills were the basis of wind power

and it has been around for centuries

More History Windmills have been around since 200

BC in China Wind power is the fastest growing

energy source and with power buildings for many years to come

Wind Industries AWEA (American Wind Energy

Association) WWE (Western Wind Energy) You are not ready for the windmill

Work Cited: http://www.darvill.clara.net/altenerg/

wind.htm http://cr.middlebury.edu/es/

altenergylife/windpower.htm http://www.energyquest.ca.gov/story/

chapter16.html