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Wind Energy

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by

Clara Erickson

on 26 May 2014

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Transcript of Wind Energy

Wind Energy

By: Hannah, Clara, and Jacob
WHAT IS WIND ENERGY?
HOW DOES IT WORK?
WHAT DO YOU TAKE
AWAY FROM THIS?
ADVANTAGES
&
DISADVANTAGES
ADVANTAGES
DISADVANTAGES
CURRENT ENERGY COST IN THE U.S.
HISTORY OF WIND ENERGY
ENERGY GENERATION IN THE U.S.
Renewable source of energy
Converts kinetic energy into electricity
Windmill attached to motor.
The kinetic energy of wind turns the blades which drive a generator
(Tabak 1)
Clean (non-polluting, CO2)
Renewable
Widely available (Ashworth 1)
No cooling
Energy efficient
Eliminates some greenhouse gases
(Desonie 2-3)
Old and New
Heyday of wind 1870-1930
Interest of wind power reborn in 1970's
Modern wind energy began in California- 1980's
Early 1990's- improvements in technology
2006- several years of record growth
("How Wind Energy Works" 1-2)
Unpredictably available
It is not windy everywhere
Visual pollution
Environmental concerns (Desonie 2-3)
Generate low frequency noises
(Kusky, Timothy)
Some danger to birds

FUTURE EXPANSION?
CURRENT ENERGY COST IN THE U.S.
(Declining Cost of Wind Energy Over Time)
Nearly 90% of the cost is upfront (Bansal 70).
Great decline in cost.
Around $31 to $84 per MWh
Global wind capacity will reach 536,000 MW by 2017 ("How Wind Energy Works" 1) .
2020- wind energy will contribute at least 12 percent of the global electricity consumption (Vasi 184).
COMPARATIVE ENERGY COST
(Cost of New Generation Resources)
(Contribution to Global Wind Generation in 2009)
(Wind Turbines during Sunset)
Bibliography
Wind Energy is an essential energy source (Bansal 19)
Technological advances
Clean and renewable
Not a serious environmental concern
Are wind turbines ugly?

("Cutaway View of a Modern Wind Turbine."
500,000 new U.S. jobs,
Reduce global warming
Save four trillion gallons of water ("How Wind Energy Works" 1)
Achieving this goal would create:
("Wind-Power Density in the United States.")
(Little Snake River Wind)
(Off-shore Wind Farm)
(How Does a Wind Turbine Work?)
(Northwest power surplus may halt wind energy)
Full transcript