As ancient as the earth itself, unharnessed geothermal energy most often bubbles to the surface in geological hot spots long known for geysers and naturally-boiling mud pots.
Although such conventional shallow geothermal power has heretofore been harnessed with varying degrees of success, EGS (Enhanced Geothermal Systems) is capable of engineering a circulating energy-producing reservoir of hot water and steam as much as 10,000 feet beneath the surface. In fact, EGS could eventually be used on a global scale to tap into an almost endless energy supply from which to generate electricity.