100 Geothermal Energy Facts

The word geothermal is a fusion of “geo”,  a Greek word meaning “Earth,” and “therme” a Greek word meaning “heat. Geothermal power originates from the Earth’s formation, decay of radioactive isotopes, volcanic activity and solar energy. The temperature increases around 80 degrees Fahrenheit for each mile of depth below the Earth’s surface. At the center of Earth is a solid core with an estimated temperature of about 8,000 °F (4426 °C). The high temperature of the Earth’s core melts the {Read More}