Geothermal Energy
The term Geothermal Energy has been derived from Greek origins, "Geo" which means earth, and “therme” means heat, combined to mean: earth-heat. This form of energy has existed for as long as the Earth has existed.
Geothermal energy is a resultant of heat within the earth’s core. It falls under the category of renewable energy because of the limitless ability of the earth to produce magma and the constant transfer of heat between subsurface rock and water. This form of energy uses the steam and hot water generated inside the earth to heat buildings or produce electricity.