Archaeological evidence establishes that the beginning of man’s application of geothermal energy in North America came about more than ten thousand years ago with the settlements of Paleo-Indians at natural geothermal energy springs. The natural geothermal energy springs functioned as a reservoir of geothermal energy for heat and purifying, using their minerals as a source of therapeutic healing.
Although people still soak in shallow pools heated from the Earths core, technologists are creating technologies that will permit us to examine areas more than ten miles beneath the Earth’s surface hunting for geothermal energy. Currently in the United States Geothermal Energy accounts for 0.3 percent of power though experts predict this could rise to as much as 10% by 2050.
Geothermal Energy is heat (thermal) retrieved from the sub terrain depths of the land. The thermal energy held in in the rock of the earth and liquid (that occupies the cracks and pores inside the rock) in the earth’s crust.
Scientific calculations determine that the earth, starting from an entirely molten state, must have cooled off and become entirely solid several thousand years ago without an energy stimulant in addition to that of the sun. It is thought that the elemental source of geothermal energy is radioactive decay occurring deep within the earth (Burkland, 1973).