Energy around the world- does one size fit all? PowerPoint PPT Presentation

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Title: Energy around the world- does one size fit all?


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Energy around the world-does one size fit all?
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What types of energy are available around the
world?
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Biomass
  • Biomass is an organic material made from plants
    and animals. Biomass can be wood, manure, and
    even some garbage!
  • Biomass energy is created by burning biomass
    material. The gases that are released are made
    into electricity, and the steam it releases can
    directly heat houses.
  • Some biomass, like garbage, releases methane gas,
    which is the main ingredient in natural gas.
    Since natural gas is a non-renewable resource, we
    can substitute a renewable resource, like
    biomass, into a very similar renewable resource.
    That is better for the environment.
  • Biomass can pollute the air when it is burned,
    though not as much as fossil fuels can.

http//www.worldofenergy.com.au/graphics/photos/fa
ctsheet9/types-of-biomass.jpg
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Nuclear
  • Nuclear energy supplies 16 of the worlds
    energy.
  • It is created by using a nuclear reactor, and
    uranium particles are either split or combined to
    create energy. Nuclear fission is used more than
    nuclear fusion.
  • Pros- Nuclear energy could produce energy even
    after fuel and coal run out. Nuclear plants need
    less fuel than fossil fuel plants- one ton of
    uranium produces energy that would take several
    million tons of fossil fuels. Well operated
    nuclear plants do not pollute.
  • Cons-They produce radiation, which is very
    harmful to humans if they are exposed. Nuclear
    explosions can happen if a meltdown occurs-
    nuclear reactions happen too quickly and too
    often. The Chernobyl disaster was caused by this
    happening. If nuclear wastes are not stored
    correctly they can result in explosions, just
    like if they were in use.

http//www.dancewithshadows.com/business/wp-conten
t/uploads/2008/09/nuclear-energy-gmr.jpg
http//www.our-energy.com/chernobyl_disaster.html
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Hydrogen
  • Hydrogen is the most plentiful gas in the
    universe. It is a simple element, and it only
    exists as a solid compound when combined with
    other elements on Earth.
  • To make hydrogen into a form of energy, we must
    first separate it from the other bonds in the
    compound it is in. Next it is turned into a gas
    by steam reforming or electrolysis. Then it is
    ready to be turned into energy! Hydrogen is
    usually turned into a fuel cell, although it can
    be used once it is in its pure hydrogen gas
    state.
  • Every region in the world has some type of
    material that can be used to process hydrogen,
    and this makes this type of energy very
    accessible.
  • Hydrogen can power everything from cars to homes
    to laptop computers. It is also a very clean
    source of energy and does not emit any type of
    fume or vapor.

http//www.eia.doe.gov/kids/energyfacts/sources/In
termediateHydrogen.html
Theres even a hydrogen powered cell phone!
http//www.inhabitat.com/wp-content/uploads/angstr
om-hydrogen.jpg
6
Wind
  • In this form of energy, wind turns the
    turbine. The blades turn a shaft inside the
    nacelle (the box at the top). The shaft goes into
    the gear box which increases the rotation speed
    enough for the generator to convert rotational
    energy into electric energy using magnetic
    fields.
  • Pros- Wind is free, and wind farms dont need to
    use any fuel! Wind energy produces no waste or
    greenhouse gases, and the land beneath the
    turbines can still be used.
  • Cons- On some days there is no wind, so a backup
    energy source is needed. Although it is extremely
    rare, birds can be killed by the turbines.
    Sometimes the turbines are noisy, but that too is
    rare.

http//blogs.mysanantonio.com/weblogs/clockingin/2
009/01/valero-has-fired-up-phase-one.html
7
Hydroelectric
  • Hydropower is one of the most used forms of
    energy in the US today.
  • Hydroelectricity is made from deriving mechanical
    energy from flowing water. This is often
    accomplished by building a dam to collect water.
    The amount of available energy from water is
    determined by its flow and fall. Water that runs
    very fast or falls a great distance is the most
    suitable for use as hydropower energy.
  • When the water is inside the dam, it turns a
    wheel, called a penstock, which in turn produces
    electricity in a generator on the shore.
  • Hydropower is a great form of energy because it
    costs almost no money. There are no waste
    by-products, and it does not pollute the water or
    the air.

http//www.promotega.org/AAU06004/Hydroelectricity
_files/image002.jpg
http//www.radford.edu/7Ewkovarik/envhist/RenHist
/2.water.pix/itaipu.better.jpg
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coal
  • Pros- It is inexpensive and if in great supply,
    very reliable. It provides about half of the
    United States' energy.
  • Cons- The burning of coal is one of the least
    environmentally friendly energy sources, leaving
    its large mark on planet Earth. It is
    nonrenewable, so when it is gone, it is gone for
    good, and can take several hundred million years
    to form again. Burning coal produces more carbon
    dioxide than burning oil or natural gas, and the
    fumes contribute to acid rain.

http//www.the-coalman.co.uk/images/coal.jpg
http//www.enviroblog.org/2007/03/coal-combustion-
faces-controversy.html
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Oceanic
  • There are many types of oceanic energy. They
    are
  • Tidal
  • Wave
  • Water/Solar
  • Water/Wind
  • These types of energy are useful because they
    use water, which is plentiful, to harvest
    electricity in a non-impact way.

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Oceanic-Continued
  • Tidal- Like wind energy, tidal energy is produced
    with the use of a turbine. In the tidal system,
    there are many turbines placed parallel to each
    other. All of the water that passes the turbines
    is forced through them, and this spins a wheel
    which in turn generates electricity. Tidal
    turbines are clean and can be used anywhere with
    a tide range above 10 feet, but they are
    expensive and may harm plant and animal life.
  • Wave- Waves are huge sources of energy. We can
    use this energy by bending the waves into a
    channel, increasing their size, and then using
    the water to spin turbines to generate
    electricity. This form of energy could be used
    anywhere large waves break near the shore and
    would be useful for the West Coasts of the US and
    Europe and in New Zealand and Japan.

Both Pictures are from http//www.eia.doe.gov/kid
s/energyfacts/sources/renewable/ocean.html
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Oceanic-Continued
  • Water/Solar Energy- Since the ocean makes up 70
    of the surface of Earth, why not put a solar farm
    on the top of the ocean? Solar panels would be
    placed just offshore to collect solar energy.
    Then the panels would transmit energy to the land
    to be used.
  • Water/Wind Energy- This type of energy can be
    used everywhere along the coast of the US. It is
    just like a continental wind farm, where wind
    turbines are placed to change wind into energy.
    Some people oppose this because it would change
    the view of the ocean.

http//64.202.120.86/upload/image/new-news/2008/fa
bruary/unlimited-solar-energy-from-the-ocean/sea-s
olar-power-plant-2.jpg
http//ecology.com/ecology-today/wp-content/upload
s/2008/11/ocean-wind-power-nasa.jpg
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Natural gas
  • Pros- Natural gas is efficient, economical, and
    reliable. Remember how your gas stove worked when
    the power went out?
  • Cons- It is less environmentally friendly than
    other alternatives, but friendlier than oil and
    coal energy. Because it is nonrenewable, when it
    is gone, it is gone. This could make demand much
    higher in the future, making the price skyrocket.

http//laclarongeblog.blogspot.com/2007/03/natural
-gas-comes-north.html
http//www.naturalgas.org/naturalgas/naturalgas.as
p
13
solar
  • Solar energy is an excellent and environmentally
    friendly energy source for areas of the world
    that receive large amounts of sunlight.
  • It can be used to heat water and spaces.
  • Solar energy is generated using two types of
    panels- photovoltaic cells, which are the kind
    you see on houses and are not connected to a
    power grid, and cells connected to power plants.
  • Pros- It is environmentally friendly, very
    accessible and useful in sunny areas. Renewable
  • Cons- Solar panels are expensive to install and
    maintain, which limits the amount of countries
    that could benefit from it. Solar panels can only
    work when it is sunny, so it can be used in
    limited areas where sunshine is great enough for
    the solar cells to be profitable.

http//www.agpe-energy.com/SOLAR_ENERGY.html
http//www.treehugger.com/files/2006/10/selling_so
lar_t.php
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geothermal
  • Geothermal energy is derived from the same force
    that builds mountains, erupts volcanoes, and is
    responsible for hot springs.
  • Geothermal energy is sourced from geothermal
    reservoirs, which can be found in few areas.
    California could benefit from geothermal energy
    because of their fault lines, where geothermal
    reservoirs are normally found.
  • Pros- Environmentally friendly- they produce no
    smoke, only steam, and they are cost efficient.
    Renewable.
  • Cons- Only available in select places.

Both Pictures are from http//geothermal.marin.or
g/pwrheat.html
15
oil
  • The US produces only 40 of the total amount of
    oil it uses.
  • The top oil producing countries are Saudi
    Arabia, Russia, and the United States.
  • Pros- Low cost, compact generators, easy to store
    and transport.
  • Cons- Oil is nonrenewable and being used at a
    fast rate, it is a source of conflict trading
    wise, and when in transport, oil can spill
    causing great environmental strain.

http//ecotechdaily.com/2008/05/06/oil-prices-rise
-again-on-200-warning/
The dangerous effects of an oil spill
http//www.appvoices.org/images/galleries/MartinCo
untyNastySpill.jpg
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Where can these types of energy be found and why
are they useful?
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Biomass
  • Accessible all over the world
  • 70-90 percent of people in Africa use wood, a
    biomass material, to heat their homes
  • 50-60 percent of all developing countries in Asia
    use biomass
  • Clean
  • Cost-effective, and anyone can have their own
    biomass

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Nuclear
  • Virtually can be used in any part of the world
  • Limited to countries that can afford it
  • Cost in excess of 13 billion
  • Japan, Russia, the United States, Korea, and
    China have all harnessed nuclear energy
  • Sometimes nuclear energy is not used to benefit,
    like in WWII

19
Hydrogen
  • Abundantly located in every region of the world.
  • Very clean form of energy
  • Likely to be used in countries with a substantial
    amount of money, because the whole process is
    somewhat expensive
  • US, China, Japan, India, and other countries may
    be the pioneering forces in making this energy
    available to everyone.

20
Wind
  • Can be used in places with wind speeds of over 10
    mph.
  • Can withstand 140 mph winds
  • Mostly found around the coast or in desert or
    plain areas
  • Wind energy is cost effective, but installation
    is expensive
  • Most always found in rural areas, would take up
    too much space in the city

21
Hydroelectric
  • Best used in mountainous areas with rivers, or
    areas with rivers in general
  • Many places in Africa, the Middle Sast, Siberia,
    and Asia may not be able to access this form of
    energy
  • Europe, Canada, South America, the USA and other
    areas of the world are well suited for
    hydroelectricity

22
Coal
  • Can be harnessed where it is found or imported.
  • People are choosing more environmentally friendly
    alternatives.
  • Remains the cheapest, and supplies many American
    and world wide households

23
Oceanic
  • Useful to countries and states located on the
    ocean or any other large body of water
  • Wave and tidal energy are the only exceptions to
    that rule, because they require substantial
    amounts of change in sea level and waves must
    break close to the shore to generate a high
    amount of electricity
  • These forms of energy would be helpful to poorer
    countries, because they are all relatively
    inexpensive

24
Natural Gas
  • Can be used where it is found or imported.
  • Like coal, it is cost effective.
  • India, the United States, Canada, and Russia all
    use natural gas in great amounts.

25
Solar
  • Very smart energy choice in sunny parts of the
    world countries on the equator, India, Alaska,
    Arizona, or Hawaii etc.
  • Island nations could benefit from solar energy.
  • Panels can be expensive if put on a large area,
    so some countries, or cities could not use them

26
Geothermal
  • Can only be used in a small part of the world
    where geothermal reservoirs are found.
  • Includes countries surrounding the Ring of
    Fire, the Philippines, Alaska and California.
  • Has also been used in Europe.

27
Oil
  • Can be used anywhere in the world.
  • Creates a significant amount of pollution,
    countries or states with large amounts of
    pollution might use a more environmentally
    friendly alternative.
  • Oil is one of the best choices for poor
    countries.

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Works cited
  •  "BWEA - How Does Wind Energy Work?." BWEA
    Delivering UK wind, wave and tidal energy. 12
    Apr. 2009 lthttp//www.bwea.com/energy/how.htmlgt.
  • Baskind, Chris. "Oil Prices Rise Again on 200
    Warning EcoTech Daily." EcoTech Daily Green
    technology, gadgets news. 19 May 2008. 13 Apr.
    2009 lthttp//ecotechdaily.com/2008/05/06/oil-price
    s-rise-again-on-200-warning/gt.
  • "Chernobyl disaster - Our energy." Home - Our
    energy. 13 Apr. 2009 lthttp//www.our-energy.com/ch
    ernobyl_disaster.htmlgt.
  • "Coal Image." The Coalman. 13 Apr. 2009
    ltwww.the-coalman.co.uk/images/coal.jpggt.
  • "Department of Energy - Coal." Department of
    Energy - Homepage. 13 Apr. 2009
    lthttp//www.energy.gov/energysources/coal.htmgt.
  • "EIA Kids Page - Energy from the ocean tidal
    energy, wave energy." Energy Information
    Administration - EIA - Official Energy Statistics
    from the U.S. Government. 8 Apr. 2009
    lthttp//www.eia.doe.gov/kids/energyfacts/sources/r
    enewable/ocean.htmlgt.
  • EWG. "Enviroblog Coal combustion faces
    controversy Archives." Enviroblog. 19 Mar. 2009.
    13 Apr. 2009 lthttp//www.enviroblog.org/2007/03/co
    al-combustion-faces-controversy.htmlgt.
  • "Energy Resources Home page." c l a r a . n e t
    - Customer Index. 14 Apr. 2009 lthttp//home.clara.
    net/darvill/altenerg/index.htmgt.
  • "Fossil Fuels and Coal." The Energy Story. 13
    Apr. 2009 ltwww.energyquest.ca.gov/story/chapter08.
    htmlgt.
  • "Geothermal Education Office." Geothermal
    Education Office. 11 Apr. 2009 lthttp//geothermal.
    marin.org/gt. 

29
Works cited-Continued
  • "Hydropower - Water Energy." Energy Information
    Administration - EIA - Official Energy Statistics
    from the U.S. Government. 8 Apr. 2009
    lthttp//www.eia.doe.gov/kids/energyfacts/sources/r
    enewable/water.htmlgt.
  • "Lac La Ronge and Area Blog." Lac La Ronge and
    Area Blog. 13 Apr. 2009 lthttp//laclarongeblog.blo
    gspot.com/2007/03/natural-gas-comes-north.htmlgt.
  • "NaturalGas.org." NaturalGas.org. 13 Apr. 2009
    lthttp//www.naturalgas.org/naturalgas/naturalgas.a
    spgt.
  •  .Petroleum - Wikipedia, the free encyclopedia."
    Wikipedia, the free encyclopedia. 14 Apr. 2009
    lthttp//en.wikipedia.org/wiki/Petroleumgt.
  • "Renewable Energy - Biomass including wood, MSW,
    and biofuels, carbon cycle, photosynthesis."
    Energy Information Administration - EIA -
    Official Energy Statistics from the U.S.
    Government. 7 Apr. 2009 lthttp//www.eia.doe.gov/ki
    ds/energyfacts/sources/renewable/biomass.htmlgt.
  • "Renewable Energy and Sustainable Development."
    Solar Energy Society of Canada. 29 Nov. 1997. 7
    Apr. 2009 ltwww.newenergy.org/sesci/publications/pa
    mphlets/renewable.htmlgt.
  • "Solar Energy." AGPE Energy. 13 Apr. 2009
    lthttp//www.agpe-energy.com/SOLAR_ENERGY.htmlgt.
  • "The Pros and Cons of Various forms of Generating
    Electricity." The Ramblings of a Bush
    Philosopher. 12 Mar. 2009. 13 Apr. 2009
    ltgeocities.com/daveclarkecb/ElecGenProsCons.htmlgt.
  • Thomas, Justin. "Home Depot Selling Solar to
    Mainstream America TreeHugger." TreeHugger. 24
    Oct. 2006. 13 Apr. 2009 lthttp//www.treehugger.com
    /files/2006/10/selling_solar_t.phpgt.
  • Vaughan, Vicki. "Mckee Wind Farm." My San Antonio
    Blogs. 22 Jan. 2009. 13 Apr. 2009
    ltblogs.mysanantonio.com/weblogs/clockingin/2009/01
    /valero-has-fired-up-phase-one.htmlgt.
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