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Energy from inside the Earth

The geothermal plant in Sauerlach uses 140-degree waters at 4,200 meters depth to produce heat and power. Photo: Stadtwerke München

99 per cent of the Earth's mass are hotter than 1,000 degrees Celsius. Each day, 2.5 times the energy consumed worldwide escapes unused from the interior of the Earth into space. Could we tap this potential of geothermal energy? In Iceland, 90 per cent of households are supplied with heat from the depth and steam powers power plant turbines. In Germany, the case is more complex.

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