Transcript Energy Resorce: Wind - Cleveland High School

Wind
By: Bryan Ramge and Elizabeth McIver
Description of Wind
The Sun heats our atmosphere unevenly, so some
patches become warmer than others. These warm
patches of air rise, other air blows in to replace
them – and we feel a wind blowing.
Renewable or Nonrenewable
• Wind is renewable
- Energy which is generated from natural
sources.
History of Wind
Wind power has been used as long as humans have put
sails into the wind. For more than two millennia windpowered machines have ground grain and pumped water.
Wind pumps provided water for live stock .With the
development of electric power, wind power found new
applications in lighting buildings remote from centrallygenerated power.
More History
Throughout the 20th century parallel paths developed
distributed small wind plants suitable for farms or
residences, and larger utility-scale wind generators that
could be connected to electricity grids for remote use of
power. Today wind powered generators operate in every
size range between tiny plants for battery charging at
isolated residences, up to near-gigawatt sized offshore
wind farms that provide electricity to national electrical
networks.
Where is wind found and recovered?
• Wind is used all over the world, notably in the
US, Spain, Great Britain, Germany, Denmark,
and India. In some countries wind makes up a
significant part of the electricity supply
network.
• It cannot be recovered.
How is wind stored?
• Store electricity in batteries while the wind is
blowing, and this will be available in times of
calm.
• To use it to heat salt. The salt retains its heat for a
long time, and this heat could be used to generate
electricity when the wind is low.
• Use wind power to pump water up from a low
lying tank into a tank higher up. Then when there
is no wind, the water can be released and the pull
of gravity on the water can turn turbines which
generate electricity.
How is wind released?
• Wind can not be released.
How is wind used today?
• Power things that need electric power (which
can be made by wind energy)
Advantages
• The sun, wind, geothermal, ocean energy are available
in the abundant quantity and free to use.
• The non-renewable sources of energy that we are using
are limited and are bound to expire one day.
• Renewable sources have low carbon emissions,
therefore they are considered as green and
environment friendly.
• Renewable helps in stimulating the economy and
creating job opportunities. The money that is used to
build these plants can provide jobs to thousands to of
people.
More Advantages
• Renewable sources can cost less than consuming the
local electrical supply. In the long run, the prices of
electricity are expected to soar since they are based
on the prices of crude oil, so renewable sources can
cut your electricity bills.
• Various tax incentives in the form of tax waivers,
credit deductions are available for individuals and
businesses who want to go green.
• You don't have to rely on any third country for the
supply of renewable sources as in case of nonrenewable sources.
Disadvantages
• It is not easy to set up a plant as the initial costs are
quite steep.
• Geothermal energy which can be used to generate
electricity has side effects too. It can bring toxic
chemicals beneath the earth surface onto the top and
can create environmental changes.
• Hydroelectric provide pure form of energy but
building dams across the river which is quite
expensive can affect natural flow and affect wildlife.
• To use wind energy, you have to rely on strong winds
therefore you have to choose suitable site to operate
them. Also, they can affect bird population as they are
quite high.
Economic Impacts
o Views of wind turbines will not negatively impact
property values.
o Wind plant construction will have significant
economic benefits.
o Wind plant operation will provide additional annual
economic benefits.
Environmental Impacts
Compared to the environmental impact of
traditional energy sources, the environmental
impact of wind power is relatively minor.
Wind power:
• Consumes no fuels
• Emits no air pollution
Future of Wind
• The major technology developments enabling
wind power commercialization have already been
made.
• There will be infinite refinements and
improvement the near future, wind energy will be
the most cost effective source of electrical power.
• There will be a "weather change" in the
marketplace, or a "killer application" somewhere
that will put several key companies or financial
organizations in a position to profit.
Don Quixote
• Tilting at windmills is an English idiom
which means attacking imaginary enemies, or
fighting unwinnable or futile battles. The word
“tilt”, in this context, comes from jousting.
• Don Quixote fights windmills that he imagines
to be giants. Quixote sees the windmill blades
as the giant's arms.
Fun Facts
• Wind energy is a pollution-free energy source.
• Wind energy is mostly used to generate
electricity.
• Wind energy is the lowest-price renewable
energy source.
• Wind energy can relieve fossil fuel shortage.
• Wind power is the worlds fastest growing
energy source.
Wind Turbine
Video
• http://video.nationalgeographic.com/video/pla
yer/
Can one person make a difference?
• Yes
-If you don’t live near a wind farm you can get
educated about it and teach others.
-If you live near a wind farm you could go out
and show other areas that don’t have it the
benefits.
Work Cited Page
• http://www.conserve-energy-future.com
• http://www.centreforenergy.com/AboutEnergy/
wind/overview.asp?page=3
• http://en.wikipedia.org/wiki/History_of_wind_
power
• http://interestingenergyfacts.blogspot.com/200
8/03/wind-energy-facts.html
• http://www.windpoweringamerica.gov/pdfs/wp
a/econ_dev_casestudies_overview.pdf