Geothermal energy is used to supply heat for industrial purposes. It may also be used to promote agricultural and aquaculture production in cold climates by heating soils, aquaculture ponds and greenhouses. In addition, high-temperature geothermal energy is used to generate electricity.Know More
Geothermal energy has been used for many years in various parts of the world for cooking and heating. Since time immemorial, humankind has utilized the geothermal energy that flows freely from underground reservoirs to the Earth’s surface. For instance, geothermal water was used by the Romans to treat different kinds of diseases, and to heat the city of Pompeii. For more than 10,000 years, the indigenous North Americans used geothermal water for cooking, as well as for medicinal purposes. Geothermal springs have been used for washing and bathing in Iceland. Modern uses of geothermal energy includes heating and cooling of buildings. This is achieved through the use of geothermal pumps that make use of shallow resources. Geothermal energy is also used to directly heat structures.
The word “geothermal” is derived from two Greek words: “geo” which means "Earth" and “thermal” which means "heat." Geothermal energy is a source of power derived from the Earth’s internal heat. It is contained within the rocks and fluids beneath Earth’s crust. Geothermal energy may be obtained anywhere from shallow ground to several miles beneath the surface. Other renewable energy sources include wind, wave, biomass and solar power.Learn more about Earth Science
Geothermal energy is formed within the Earth. Geothermal energy is clean and stable, but it's only available near tectonic plate boundaries. Plate boundaries are where volcanic activity and earthquakes occur.Full Answer >
The primary disadvantages of geothermal energy are its inability to be used anywhere and its costly construction. While geothermal energy is practical in some areas, it's a poor choice in most locations.Full Answer >
According to the Union of Concerned Scientists, geothermal systems use pipes driven deep into the ground to heat air, water or other fluids for the purposes of generating electricity or heating buildings. In some cases, geothermal systems use natural underground hot springs for this purpose, or the systems may pump a thermal medium into the ground to absorb the Earth's natural heat.Full Answer >
The geothermal gradient is the gradual warming of layers of rock relative to their distance from the Earth's surface. The average geothermal gradient is an increase of 1 degree Celsius for each 40 meters of depth.Full Answer >