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| - Geothermal is where geothermal heat below the surface of the Earth is used to create electricity. Geothermal comes from the Greek “geo” and “therme”, meaning Earth heat. The heat used is the natural heat of the Earth. A few kilometres down, the temperature is 250C. Roughly, for every 30-40 metres you go down, the temperature rises 1C. In some areas, like volcanic ones, there is molten rock very near to the surface.
- Geothermal energy ultimately comes from radioactive decay in the core of the Earth, which heats the Earth from the inside out, and from the sun, which heats the surface. It can be used in three ways:
* Geothermal electricity
* Geothermal heating, through deep Earth pipes
* Geothermal heating, through a heat pump. Usually, the term 'geothermal' is reserved for thermal energy from within the Earth. Small scale geothermal heating can also be used to directly heat buildings: there are many names for this technology including "Ground Source Heat Pump" technology, and "Geoexchange". ()
- Geothermal energy is energy generated by heat stored beneath a planet's surface or from the collection of absorbed heat in the atmosphere and oceans. Such energy was utilized extensively by the Ancients: in the Taranis outpost on Taranis, and the mobile drilling platform on Lantea. (SGA: "Inferno", "Submersion", "First Strike") The fallout bunker on the planet Novus used geothermal power, in addition to solar and wind, to power the fallout bunker. (SGU: "Epilogue")
- Geothermal energy was a scientific term used to describe the amount of energy a planet could produce from internal heat generated by the core. Some planets with surplus energy traded it for needed goods, for example construction materials. During the 15th century, the Vaadwaur utilized an efficient means of drawing energy from their planet's geothermal core. (VOY: "Dragon's Teeth") On the moon of Andoria, Andorian cities were built underground to take advantage of the moon's geothermal energy. (ENT: "The Aenar") The trade complex on Rigel X utilized geothermal energy by 2151. (ENT: "Broken Bow")
- Geothermal energy is the internal heat of a planet or other large planetary body, this energy can often be harvested and converted for other uses such as electricity production. On Andoria, cities are built underground to take advantage of the moon's geothermal energy. (ENT episode: "The Aenar") The Tigans used geothermic energy to power a containment field which held a microscopic black hole which in turn produced power for the entire planet. (TNG comic: "History Lesson")
- The word geothermal comes from the Greek words geo (earth) and therme (heat). So, geothermal energy is heat from within the earth. We can use the steam and hot water produced inside the earth to heat buildings or generate electricity. Geothermal energy is a renewable energy source because the water is replenished by rainfall and the heat is continuously produced inside the earth.
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| - Geothermal energy is energy generated by heat stored beneath a planet's surface or from the collection of absorbed heat in the atmosphere and oceans. Such energy was utilized extensively by the Ancients: in the Taranis outpost on Taranis, and the mobile drilling platform on Lantea. (SGA: "Inferno", "Submersion", "First Strike") The people on P3X-289 used geothermal energy from geothermal vents to power their dome and protect them from their planet's harmful atmosphere. Because of the movement of tectonic plates the hotspot powering the vents moved and the vents started to cool down. Thus their dome started to shrink according to the drop in power.(SG1: "Revisions") The fallout bunker on the planet Novus used geothermal power, in addition to solar and wind, to power the fallout bunker. (SGU: "Epilogue")
- Geothermal energy is the internal heat of a planet or other large planetary body, this energy can often be harvested and converted for other uses such as electricity production. On Andoria, cities are built underground to take advantage of the moon's geothermal energy. (ENT episode: "The Aenar") The Tigans used geothermic energy to power a containment field which held a microscopic black hole which in turn produced power for the entire planet. (TNG comic: "History Lesson") The planet Deneb IV had abundant supplies of geothermal energy which in the 2360s was used to hold a Star-jelly captive, forcing it to take on the form of Farpoint Station. (TNG episode: "Encounter at Farpoint")
- Geothermal energy ultimately comes from radioactive decay in the core of the Earth, which heats the Earth from the inside out, and from the sun, which heats the surface. It can be used in three ways:
* Geothermal electricity
* Geothermal heating, through deep Earth pipes
* Geothermal heating, through a heat pump. Usually, the term 'geothermal' is reserved for thermal energy from within the Earth. Geothermal electricity is created by pumping a fluid (oil or water) into the Earth, allowing it to evaporate and using the hot gases vented from the earth's crust to run turbines linked to electrical generators. The geothermal energy from the core of the Earth is closer to the surface in some areas than in others. Where hot underground steam or water can be tapped and brought to the surface it may be used to generate electricity. Such geothermal power sources exist in certain geologically unstable parts of the world such as Iceland, New Zealand, United States, the Philippines and Italy. The two most prominent areas for this in the United States are in the Yellowstone basin and in northern California. Iceland produced 170 MW geothermal power and heated 86% of all houses in the year 2000 through geothermal energy. Some 8000 MW of capacity is operational in total. Geothermal heat from the surface of the Earth can be used on most of the globe directly to heat and cool buildings. The temperature of the crust a few feet below the surface is buffered to a constant 7 to 14 °C (45 to 58 °F), so a liquid can be pre-heated or pre-cooled in underground pipelines, providing free cooling in the summer and, via a heat pump, heating in the winter. Other direct uses are in agriculture (greenhouses), aquaculture and industry. Although geothermal sites are capable of providing heat for many decades, eventually specific locations cool down. Some interpret this as meaning a specific geothermal location can undergo depletion, and question whether Geothermal is renewable. Small scale geothermal heating can also be used to directly heat buildings: there are many names for this technology including "Ground Source Heat Pump" technology, and "Geoexchange". ()
- Geothermal energy was a scientific term used to describe the amount of energy a planet could produce from internal heat generated by the core. Some planets with surplus energy traded it for needed goods, for example construction materials. During the 15th century, the Vaadwaur utilized an efficient means of drawing energy from their planet's geothermal core. (VOY: "Dragon's Teeth") On the moon of Andoria, Andorian cities were built underground to take advantage of the moon's geothermal energy. (ENT: "The Aenar") The trade complex on Rigel X utilized geothermal energy by 2151. (ENT: "Broken Bow") The planet Deneb IV had abundant reserves of geothermal energy. The energy was used to hold a space creature captive, a being able of forming itself into any shape the captors wanted – in this case, Farpoint Station. Eventually, the crew of the USS Enterprise-D freed this creature from its tormentors in 2364. (TNG: "Encounter at Farpoint" ) On an unnamed asteroid in the Delta Quadrant, a group of Talaxians established a colony where they dug several tunnels and used the asteroid's geothermal energy to melt the ice that covered most of the outer surface, which provided them with oxygen and water. That technology was later given to Nocona and was converted into fuel used to power his ships. (VOY: "Homestead")
- The word geothermal comes from the Greek words geo (earth) and therme (heat). So, geothermal energy is heat from within the earth. We can use the steam and hot water produced inside the earth to heat buildings or generate electricity. Geothermal energy is a renewable energy source because the water is replenished by rainfall and the heat is continuously produced inside the earth. Geothermal energy is generated in the earth's core, aboutelow the surface. Temperatures hotter than the sun's surface are continuously produced inside the earth by the slow decay of radioactive particles, a process that happens in all rocks. The earth has a number of different layers: 1.
* The core itself has two layers: a solid iron core and an outer core made of very hot melted rock, called magma. 2.
* The mantle which surrounds the core and is about 1,800 miles thick. It is made up of magma and rock. 3.
* The crust is the outermost layer of the earth, the land that forms the continents and ocean floors. It can be three to five miles thick under the oceans and 15 to 35 miles thick on the continents. The earth's crust is broken into pieces called plates. Magma comes close to the earth's surface near the edges of these plates. This is where volcanoes occur. The lava that erupts from volcanoes is partly magma. Deep underground, the rocks and water absorb the heat from this magma. The temperature of the rocks and water get hotter and hotter as you go deeper underground. People around the world use geothermal energy to heat their homes and to produce electricity by digging deep wells and pumping the heated underground water or steam to the surface. Or, we can make use of the stable temperatures near the surface of the earth to heat and cool buildings. (See Uses of Geothermal Energy below.)
- Geothermal is where geothermal heat below the surface of the Earth is used to create electricity. Geothermal comes from the Greek “geo” and “therme”, meaning Earth heat. The heat used is the natural heat of the Earth. A few kilometres down, the temperature is 250C. Roughly, for every 30-40 metres you go down, the temperature rises 1C. In some areas, like volcanic ones, there is molten rock very near to the surface. Geothermal energy works because below the surface of the Earth there are is a lot of radioactive stuff reacting and giving off alpha rays, beta rays and gamma rays. This gives off incredible heat and this is how the Earth is heated. Because of this we can use this thermal energy to good effect. We drill holes down to the level where there is enough heat to boil water. Then water is pumped down, and steam and hot water comes up the other hole into a generating station. In here, the steam is used to turn turbines and they dive generators.
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