Geothermal
production-electricity-from-geothermal-energy.jpg
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What is it? Energy made from the natural heat from the Earth.
How do we use it? Heat buildings or generate electricity
What are the different types of it? used directly has heat or hot water or generating electricity
Where is it most used or most effective? heating buildings
What are some advantages to this source? no pollution, renewable, and no fuel is needed
What are some disadvantages to this source? Must have geothermal energy close by, not always reliable, there may be geothermal gases
What is the cost for a small scale (house) or large scale (city) operation? $3400 per kilowatt installed
Local sources: Johnson, Nevada, Jefferson

http://www.alternative-energy-resources.net/disadvantages-of-geothermal-energy.html
http://205.254.135.24/kids/energy.cfm?page=geothermal_home-basics
http://www.alternative-energy-resources.net/advantages-of-geothermal-energy.html