Word: larderello
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Dates: during 1970-1979
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...geothermal energy is hardly new. Icelanders have used volcanic springs to heat their homes for generations. In Larderello, Italy, the earth's heat has been tapped to make electrical power since 1904. In the mountains north of San Francisco, a rich geothermal area called the Geysers produces about 40% of the city's electricity. In most of these applications, the geothermal energy is released as scalding steam. Unfortunately, reserves of accessible underground water hot enough to produce steam (above 212° F.) have been found only in scattered areas of the globe, which has until now hindered wider...