What are the benefits of using Geothermal Energy?

Answer: Several attributes make it a good source of energy.

• First, it's clean. Energy can be extracted without burning a fossil fuel such as coal, gas, or oil. Geothermal fields produce only about one-sixth of the carbon dioxide that a relatively clean natural-gas-fueled power plant produces, and very little if any, of the nitrous oxide or sulfur-bearing gases. Binary plants, which are closed cycle operations, release essentially no emissions.
• Geothermal energy is available 24 hours a day, 365 days a year (Baseloaded). Geothermal power plants have average availabilities of 90% or higher, compared to about 75% for coal plants.
• Geothermal power is homegrown, reducing our dependence on foreign oil.

Why is geothermal energy a renewable resource?

Answer: Because its source is the almost unlimited amount of heat generated by the Earth.

What does that mean?

Check out energy-pedia for a glossary of energy terms: http://www.energy-pedia.com/glossary.aspx