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Clean, Reliable and Renewable
Geothermal energy  is heat energy that comes from the molten interior deep within the earth's crust. The heat is brought near the surface due to movements in the earth's crustal plates by intrusion of molten magma and by deep circulation of groundwater. Reservoirs of hot water under pressure are formed.
In some places, geothermal energy rises to the surface in natural streams of hot steam or water, which have been used since ancient times for bathing and cooking.
Utilization of geothermal energy  is achieved by drilling of wells into reservoirs to bring heat from the hot water or steam to drive turbines in power plants. The heat energy is thereby converted to electrical energy.