Decades-Old Documents Could Speed Discovery of Geothermal Wells

Geothermal energy is cheap, clean and constant. Over the next 50 years the U.S. Geological Survey estimates that a new technology known as an enhanced geothermal system (EGS) could supply about 10 percent of the country's current electrical capacity. Unlike conventional power plants that rely on near-surface hydrothermal systems such as springs and geysers, EGS can draw energy from depths of up ...

Source: http://www.scientificamerican.com/article.cfm?id=decades-discover-geothermal-wells

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