👉 The term "geothermal" is derived from the Greek word "ge" which means "heat" and "therm," meaning temperature. It refers to a type of heat source that occurs naturally on Earth, primarily due to the movement of molten rock or ice beneath the surface. This process results in the release of energy through thermal conduction, where heat is transferred from hotter parts of the earth to cooler parts. Geothermal systems can be found in many locations around the world, including Iceland