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Geothermal power stations are similar to other steam turbine thermal power stations in that heat from a fuel source (in geothermal's case, the Earth's core) is used to heat water or another working fluid. The working fluid is then used to turn a turbine of a generator, thereby producing electricity.
Geothermal energy is heat energy within Earth that can be captured and harnessed for electrical power generation, space heating and cooling, and various direct uses. Geothermal energy | Description, Renewable, Uses, & Pros and Cons | Britannica
Geothermal power is a form of energy conversion in which geothermal energy—namely, steam tapped from underground geothermal reservoirs and geysers—drives turbines to produce electricity. It is considered a form of renewable energy.
Geothermal power, (generation of electricity from geothermal energy), has been used since the 20th century. Unlike wind and solar energy, geothermal plants produce power at a constant rate, without regard to weather conditions.
Learn what geothermal energy is and how the Geothermal Technologies Office advances geothermal technologies in order to spur growth in the industry and benefit the nation.
Geothermal energy is heat within the earth. The word geothermal comes from the Greek words geo (earth) and therme (heat). Geothermal energy is a renewable energy source because heat is continuously produced inside the earth.
Learn how different kinds of geothermal power plants tap into geothermal resources—consisting of fluid, heat, and permeability found deep underground—to create a renewable source of electricity.
Coming from the heat of the Earth’s core, geothermal energy can be used to generate electricity in geothermal power plants or to heat homes and provide hot water via geothermal heating.
Most heating and cooling applications utilize low enthalpy heat.2 Geothermal energy has two primary applications: heating/cooling and electricity generation.1 Ground source heat pumps (GSHPs) for heating and cooling use 75% less energy than traditional heating and cooling system.
Geothermal electricity generation requires water or steam at high temperatures (300°F to 700°F). Geothermal power plants are generally built where geothermal reservoirs are located, within a mile or two of the earth's surface.