Sam+S.

= = = = = = **Alternative Energy ﻿ **

Solar Energy! Solar energy is when the photoelectric cells are converted into energy. Solar energy has been used for many years, but used for cooking, and drying clothes and growing plants. Solar energy is converted by either solar water heating, or by solar furnaces. Solar water heating is when you have glass panels on your roof that are filled with water, and the sun heats them, and can cut down on the cost of heating your water and house. Solar furnaces are basically a bunch of panels that produce exceedingly high temperatures that help cook food. **//Wind Energy!//** Wind energy is also quite efficient, however it is not quite efficient as solar energy. It is the kinetic energy of the air in motion. When the wind blows, the propeller turns causing the generator to turn. The best place for the Wind Towers is on the coastal areas, or on rounded hills. This is because there is a stronger breeze off the oceans crisp waves, and on a hill because there are generally no trees to block the wind.   

Hydroelectric ﻿ 

Hydroelectric power is made when a dam is built to add pressure to water. When the water is pressurized, it pushes on a turbine, causing it to turn and drive the generator. Hydroelectric dams are very expensive, but free once made. And there is no pollution afterwards. Dams look like they are very simple, however they are quite complicated, and if a engineer makes a small mistake, the dam could break, or there could be a leak.



This photo to the right is an metaphorical picture that, to me, says: Using non-renewable resources is breathing in chemicals.

﻿Sources! :D

http://altenergy.org

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http://en.wikipedia.org/wiki/Wind_turbine =====

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http://en.wikipedia.org/wiki/Solar_energy ===== http://en.wikipedia.org/wiki/Hydroelectricity <span style="background-color: transparent; color: #000000; font-family: serif; font-size: 16px; text-align: start; text-decoration: none; vertical-align: baseline;">http://www.darvill.clara.net/altenerg/hydro.htm <span style="background-color: transparent; color: #000000; font-family: serif; font-size: 16px; text-align: start; text-decoration: none; vertical-align: baseline;">http://www.darvill.clara.net/altenerg/solar.htm <span style="background-color: transparent; color: #000000; font-family: serif; font-size: 16px; text-align: start; text-decoration: none; vertical-align: baseline;">http://www.darvill.clara.net/altenerg/wind.htm <span style="background-color: transparent; color: #000000; font-family: serif; font-size: 16px; text-align: start; text-decoration: none; vertical-align: baseline;">http://www.alternative-energy-resources.net/solarenergyfacts.html <span style="background-color: transparent; color: #000000; font-family: serif; font-size: 16px; text-align: start; text-decoration: none; vertical-align: baseline;">http://www.alternative-energy-resources.net/definewindenergy.html <span style="background-color: transparent; color: #000000; font-family: serif; font-size: 16px; text-align: start; text-decoration: none; vertical-align: baseline;">http://www.alternative-energy-resources.net/hydroelectricity.html

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