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By: Dilora Obi, Bobby Shore, Michael Chong, Hannah Magraw , and Joseph Gilliam.

Geothermal Energy. By: Dilora Obi, Bobby Shore, Michael Chong, Hannah Magraw , and Joseph Gilliam. . Creation.

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By: Dilora Obi, Bobby Shore, Michael Chong, Hannah Magraw , and Joseph Gilliam.

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  1. Geothermal Energy By: Dilora Obi, Bobby Shore, Michael Chong, Hannah Magraw, and Joseph Gilliam.

  2. Creation • The energy created by geothermal power plants is created when steam rises to earths surface through large pipes and spins turbines. These turbines are much like the turbines used in wind and hydroelectric. This tables shows percent of geothermal used in America and the Philippians. Annual number of megawatts for number of turbines. Bobby Shore

  3. Advantages / Disadvantages Advantages Disadvantages Can only be used near active volcanoes or magma concentrations. Large cost to build the power plant. Plants can cause earthquakes • Renewable source • Creates clean power • Geothermal heating and cooling systems save a lot of money • Reliable source • Contain few chemical pollutants and little waste- they consist mostly of water Hannah Magraw

  4. In Use • When in use, geothermal power releases steam into the air. This steam may look harmful but has no environmental impact. Bobby Shore

  5. Data support energy usage • Geothermal projects create financial growth and jobs • The Nevada Geothermal Council states “the state’s 300 MW of geothermal power alone save 4.5 million barrels of oil (the equivalent fuel used by 100,000 cars) and avoid emissions of 2.25 million tons of CO2 annually.” • CalEnergy has plans to build new power complex in California (as of Feb. 2012) average of 323 construction workers will be employed. When the project is done it will require 57 full time positions for operations, engineering, maintenance, and administration. Job types in project timeline Dilora Obi/Hannah Magraw

  6. Impact On Public Lands • The impact of geothermal power is very small compared to other energy sources. The only two impacts are large amounts of steam and the power plants take large amounts of space. Dilora Obi

  7. Geothermal energy is one of the most efficient way to create energy.(windfallcentre.ca) It delivers 94% of efficiency. For every 4 units of energy creates 1 unit of electrical unit power.(geothermalgenius.org) Highly efficient geothermal systems are on average 48 percent more efficient than gas furnaces, 75 percent more efficient than oil furnaces, and 43 percent more efficient when in the cooling mode.(energyhomes.org) Geothermal Energy Efficient Michael Chong

  8. Graph of efficiency levels. (energyhomes.org)

  9. Comparisons Geothermal Fossil Fuels Must be burned to create electricity. Not good for environment. Once it is all used we cant get more/ non- renewable. • Electricity is produced using steam. • Magma heats water to produce steam. • Inexhaustible • Has little to no environmental impact. Joseph Gilliam

  10. Where technology is being used: • Globally, including: U.S.,  the Philippines, United Kingdom, Iceland, Japan, China, Hungary, New Zealand, France, and Italy. Joseph Gilliam/Hannah Magraw

  11. Research • Chevron is the worlds largest producer on geothermal energy and spends large sums of money each year researching this new technology. They are known for their oil production but are constantly researching in geothermal to give a more diverse portfolio.

  12. Source used in U.S. • Midland Elementary and High Schools in South Dakota are heated by Geothermal water • Laundries • gold mining • milk pasteurizing • spas • Dehydration of vegetables and fruits • Greenhouse facilities • Aquaculture facilities Fish farm in Colorado

  13. Source used outside U.S. • In  the Philippines Geothermal energy is used to provide a lot or electricity • The capital of Iceland , Reykjavik is mostly powered by Geothermal energy • Provides about 13 % of New Zealand's electricity supply Geothermal plant in the Philippines

  14. Work Cited • www.Chevron.com • www.energyhomes.org • www.geothermalgenius.org • www.windfallcentre.com • www.nrel.gov • http://www1.eere.energy.gov/geothermal/directuse.html • http://www.doe.gov.ph/ER/geothermal.htm • http://geoheat.oit.edu/bulletin/bull19-4/art2.pdf • http://library.thinkquest.org/06aug/02365/geothermal.html • http://www.nzgeothermal.org.nz/elec_geo.html • http://climatelab.org/geothermal_energy • http://www.geothermalsys.com.au/geothermal-energy-pros-and-cons/ • http://geo-energy.org/pdf/FINALforWEB_WhySupportGeothermal.pdf

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