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Geothermal energy is a renewable and sustainable power source that comes from the heat generated by the earth. "Geo" means earth and "thermal" means heat. The Earth has four main layers, as is shown in the first picture. Each layer has different compositions, functions and temperatures, as is illustrated in the second figure. The heat of the earth radiates outward and sometimes melts the mantle at temperatures of 300° F- 700°F. When the mantle becomes melted magma is created. Sometimes magma reaches the surface of the crust and is then called lava. The magma reaches the crust and heats nearby rocks and water. Read more…

When the energy crisis hit Americans in the 1970’s, people were scrambling to find ways to conserve energy. The crisis brought to attention the very real shortage of fossil fuels. Gas and oil prices skyrocketed, and Americans looked for ways to save energy. They started producing smaller cars, driving less, and turning down their thermostats. Also, they started to examine alternate  energy sources, such as solar, geothermal, and biomass. For a while, Americans were making a conscious effort to cut back on the use of fossil fuels. However, when gas and oil prices started to go back down in the early eighties, many of the conservation ideas were forgotten. In the minds of most Americans, the energy crisis had been solved because they could now afford to use fossil fuels again. Read more…

Geothermal energy is the heat of the earth generated from the core and emission to crust which can be extracted by naturally circulating water from the anomalously heated shallow part of earth crust, or water that is injected into the ground to sweep the heat from rock (hot dry rock).

Geothermal springs are the naturally emerged hot springs and steam with gases generated in relation with a heat anomaly formed by magmatic intrusions in geologic structure in shallow part of the crust, and have a temperature continuously more than mean atmospheric temperature of the region, and can have more dissolved solids and gases than that of surrounding groundwater and cold springs. Read more…

Any type of energy production will have some impact on the environment, but the degree or extent  of this impact will depend on the technology used. Disguising or even concealing of environmental effects is penalizing and can bring whole industry branches into discredit, through loss of confidence of authorities, financial circles as well as of the public (example: nuclear industry). Although geothermal energy is generally praised as being environmentally friendly, the environmental aspects of geothermal development are receiving increasing attention with the shift
in attitudes towards the world’s natural resources. Not only is there greater awareness of the effect of geothermal development on the surrounding ecosystems and landscape, but there is also a growing appreciation of the need for efficient and wise use of all natural resources. Read more…