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

Geothermal Energy

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.

1 2 3 4

11 22 33 44

Annual number of megawatts for number of turbines.

Philippians United States27% 20%

This tables shows percent of geothermal used in America and the Philippians.

Bobby Shore

Advantages / DisadvantagesADVANTAGES 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

DISADVANTAGES

Can only be used near active volcanoes or magma concentrations.

Large cost to build the power plant.

Plants can cause earthquakes

Hannah Magraw

In Use

When in use, geothermal power releases steam into the air. This steam may look harmful but has no environmental impact.

Bobby Shore

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

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

Geothermal Energy Efficient •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)

Michael Chong

Graph of efficiency levels. (energyhomes.org)

Comparisons

GEOTHERMAL

Electricity is produced using steam.

Magma heats water to produce steam.

Inexhaustible Has little to no

environmental impact.

FOSSIL FUELS

Must be burned to create electricity.

Not good for environment.

Once it is all used we cant get more/ non- renewable.

Joseph Gilliam

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

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.

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

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 electricitysupply

Geothermal plant in the Philippines

Work Cited www.Chevron.com www.energyhomes.org www.geothermalgenius.org www.windfallcentre.com www.nrel.gov http://www1.eere.energy.gov/geothermal/directuse.h

tml http://www.doe.gov.ph/ER/geothermal.htm http://geoheat.oit.edu/bulletin/bull19-4/art2.pdf http://library.thinkquest.org/06aug/02365/geotherma

l.html http://www.nzgeothermal.org.nz/elec_geo.html http://climatelab.org/geothermal_energy http://www.geothermalsys.com.au/geothermal-energ

y-pros-and-cons/ http://geo-energy.org/pdf/FINALforWEB_WhySupport

Geothermal.pdf