Quelle partie du monde est la plus propice à la géothermie ?
Les trois premiers producteurs sont les États-Unis, les Philippines et l’Indonésie. Ce dernier pays possède le plus grand potentiel (27 gigawatts, soit 40 % des réserves mondiales). L’une des sources géothermiques les plus importantes est The Geysers, située aux États-Unis, à environ 145 km au nord de San Francisco.
What kind of energy source is geothermal?
- The word geothermal comes from the Greek words geo (earth) and therme (heat). Geothermal energy is heat within the earth. People can use this heat as steam or as hot water to heat buildings or to generate electricity. Geothermal energy is a renewable energy source because heat is continuously produced inside the earth.
Why is geothermal energy a renewable resource?
- Geothermal power is a clean, virtually emissions-free, renewable energy resource generated from geothermal reservoirs of hot water that are heated by magma, miles beneath the earth’s surface. The steam and brine produced from these underground reservoirs is used to turn turbines to produce electricity.
What can geothermal energy be used for?
- Depending upon the temperature and the fluid (steam) flow, geothermal energy can be used to generate electricity. Geothermal power plants can produce electricity in three ways. Despite their differences in design, all three control the behaviour of steam and use it to drive electrical generators.
What are some examples of geothermal energy?
- A lava fountain is an example of the amount of heat stored in the Earth. Geysers, lava mountains and hot springs are all natural examples of geothermal energy. In addition, geothermal energy is now a lot more common in homes and businesses, using geothermal heat pumps to cool and heat buildings.