Geothermal energy
Download
1 / 8

Geothermal Energy - PowerPoint PPT Presentation


  • 161 Views
  • Uploaded on

Geothermal Energy. What is Geothermal Energy?. Geothermal Energy is heat from the Earth. The heat comes from hot water, molten rock, and/or magma in the Earth's crust. Facts about the energy. Renewable Sustainable Clean Hot springs are heated by Geothermal Energy

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about ' Geothermal Energy ' - jael-knapp


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
Geothermal energy
Geothermal Energy


What is geothermal energy
What is Geothermal Energy?

Geothermal Energy is heat from the Earth. The heat comes from hot water, molten rock, and/or magma in the Earth's crust.


Facts about the energy
Facts about the energy

  • Renewable

  • Sustainable

  • Clean

  • Hot springs are heated by Geothermal Energy

  • Used to power about 1% of the Earth's electricity

  • Can be used to cheaply control temperature


How it works
How it works...

  • Geothermal energy can be used to provide electricity, home heating/cooling, and hot springs.

  • When used to heat a building, people drill holes into the ground to get the hot water (the farther down you get, the hotter it is). If the water is close to or surrounded by magma, the water will be even hotter.

  • After drilling the hole the heated water is pumped through a tube and generated into steam, which then powers a turbine and a generator, creating electricity.

  • The steam is then condensed back to water so that it can be pumped back into the ground to be reused.


Pros and cons
Pros and Cons

  • Pros

  • No mining (for fuel) required

  • Virtually Infinite Supply

  • Doesn't harm land as much as other sources of power

  • Can be built underground

  • Almost entirely emission-free

  • Cons

  • Sites for building are very specific

  • Major water usage

  • Minimum temperature of 350 degrees fahrenheit needed

  • Drilling into heated rock is very difficult

  • Sulfur dioxide and silica emissions



Sources
Sources

  • http://www.instituteforenergyresearch.org/energy-overview/geothermal/

  • http://www.universetoday.com/45518/how-does-geothermal-energy-work/

  • http://www.renewableenergyworld.com/rea/tech/geothermal-energy

  • http://www.triplepundit.com/2012/06/geothermal-energy-pros-cons/


ad