Since ancient times, people are aware of the natural manifestation of the powerful energy that is in the bowels of the globe. Power even relatively small volcano is hundreds of times greater than any power energy facilities, which was created by man. Although mankind does not know how direct use of volcanic energy, and we can give you great example of rational energy use the earth's interior - Iceland. This small European country completely self-sufficient in heat, which is obtained from hot geysers fountains that work with clocklike precision.

    But the first idea of ​​geysers was implemented in reality not in Iceland. The ancient Romans brought the heat from the geysers to the baths of Caracal-term.

    Not only for heating people derive their energy from the bowels of the earth. It has long been working power plants that use hot underground springs. The first such station was built in 1904 is now near the city of San Francisco operates geothermal power capacity of 500 kW.

    But everywhere on earth beaten source of hot water. Although geysers and great energy, and characterized their locality denies any talks on global use of the latter.