Essay about Informative Speech Alternative Energy

993 Words Feb 12th, 2013 4 Pages
Alternative Energy
Informative Speech

Attention-Getter: Do you know what this is? This is worsening your asthma at the age of 10 and you developing lung cancer by the age of 30. According to the Centers for Disease Control there are 1 in 11 children with asthma (Centers, 2012a) and approximately 208,000 people diagnosed with lung cancer (Centers, 2012b). Fortunately, there is a better way.

Credibility: I’m sure you’ve all heard about or seen windmills and solar panels. For those of you here on Okinawa there’s no way you haven’t seen the giant white windmills and street lights equipped with solar panels. These forms of alternative energy are a growing trend here on Okinawa as the island strives to free itself from energy dependence
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They include Wind, Solar, Hydro, Biomass, Geothermal, and Hydrogen (United, 2012). However, I’ll only be presenting the 3 most common types.
A. I’ll begin with Wind, which utilizes a Wind Turbine or more commonly known as windmill.
1. Modern wind turbines are used to generate electricity.
2. Wind turbines convert the kinetic energy of moving wind.
3. A wind turbine works like a fan, but in reverse.
4. Also a collection of wind turbines is called a wind farm.
B. Next up we have the power of the Sun, Solar energy. It is certainly the oldest type of alternative energy used.
5. Photovoltaic (PV) is the most common solar collector used today; an example is the panels people put on rooftops or vending machines.
6. It produces electricity from the energy of the sun.
7. Energy of the absorbed light is transferred to electrons of the PV cell.
C. Rivers are the source of another popular technology. Hydroelectric Turbines leverage this hydro energy.
8. Hydroelectric Turbines are powered by the kinetic energy of the flowing water.
9. Water flows through a turbine and generators convert the energy into electricity.
10. It’s like a water pump but in reverse order, much like the wind turbine.
Transition: Now that you know a few of the options. You may want to know what the benefits are.…

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