Geothermal energy works by using the heat created by the Earth and turning it into an energy source for people to use. This clean, renewable resource provides energy in the United States and around the world. More »

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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, ... More »

Advantages of using geothermal energy include lower operating costs than many other fuel sources, pollution-free energy creation, and a reduction in the use of non-renewable fossil fuels such as coal and oil. Further adv... More »

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Geothermal power plants work by harnessing natural heat from Earth's interior to generate energy in the form of electricity. Geothermal energy is a renewable power source. The four types of geothermal power plant are bin... More »

The primary heat source for the Earth is the radioactive decay of uranium, thorium and potassium, found in the mantle and crust. The Earth produces more heat through phase changes, such as the freezing of liquid iron in ... More »

The heat produced by geothermal energy is created by the interaction between the molten mantle of the Earth and the Earth's crust. When this heat breaks through the crust it erupts in the form of steam, water geysers or ... More »

Geothermal energy is derived from the heat naturally emitted from the Earth's interior. This form of energy may be harnessed from underground steam and water sources and heat from solid rock and magma. It is a renewable ... More »