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Geothermal. Kristi Hall Rosa Money SanQuanetta Tarbert. History. Ancient Romans used hot springs to heat baths and homes. Similar uses are still found in Iceland, Turkey, and Japan. It’s greatest potential lies in the generations of electricity.
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Geothermal Kristi Hall Rosa Money SanQuanetta Tarbert
History • Ancient Romans used hot springs to heat baths and homes. • Similar uses are still found in Iceland, Turkey, and Japan. • It’s greatest potential lies in the generations of electricity. • It was first used to produce electric power in Italy in 1904.
What Is Geothermal? • Pertaining to the internal heat of the earth.
How It Is Obtained? • Engineers have learned how to pump this water up, turn it into steam, and use it to heat buildings or turn a turbine to produce electricity. • When the steam is turned back into water and sent back down into the earth we have source of renewable energy. • Most geothermal resources are in regions of active volcanism. • Hot springs, geysers, pools of boiling mud fumaroles are the most easily exploited sources.
Positive Aspects • Energy can be extracted w/o burning a fossil fuels. (clean) • Geothermal energy is available 24hrs. a day. • It is also homegrown, reducing our dependence on foreign oil.
Negative Aspects • Large scale operations quickly use up available geothermal energy. • The heat use is replaced very slowly. • Excessive use of the resource depletes it. • It can be tapped in a few places.
Bibliography • www.dir.yahoo.com/science/energy/ • www.eren.doe.gov/geothermal • www.education.yahoo.com • www.swifty.com/apase