Where is geothermal energy located? Other than Earth's core.?
476234
Geothermal energy is heat in the earth.  We can observe it emerging to earth's surface around volcanoes, vents, hot springs, etc.
711916
Geothermal drilling is a usual drilling with some restricted rules and regulations. Such as equipment specification; location specification and a host of other rules and specifications.
456954
Ok here ya go!\n\n In 2005, worldwide capacity of wind-powered generators was 58,982 MW, their production making up less than 1% of world-wide electricity use. Although still a relatively minor source of electricity for most countries, wind power generation more than quadrupled between 1999 and 2005.\n\nMost modern wind power is generated in the form of electricity by converting the rotation of turbine blades into electrical current by means of an electrical generator. In windmills (a much older technology) wind energy is used to turn mechanical machinery to do physical work, like crushing grain or pumping water.\n\nWind power is used in large scale wind farms for national electrical grids as well as in small individual turbines for providing electricity in isolated locations.\n\nWind energy is abundant, inexhaustible, widely distributed, clean, and mitigates the greenhouse effect.\n\nAn estimated 1 to 3 % of energy from the Sun that hits the earth is converted into wind energy. This is about 50 to 100 times more energy than is converted into biomass by all the plants on earth through photosynthesis. Most of this wind energy can be found at high altitudes where continuous wind speeds of over 160 km/h (100 mph) occur. Eventually, the wind energy is converted through friction into diffuse heat all through the earth's surface and atmosphere.\n\nThe origin of wind is simple. The earth is unevenly heated by the sun resulting in the poles receiving less energy from the sun than the equator does. Also the dry land heats up (and cools down) more quickly than the seas do. The differential heating powers a global atmospheric convection system reaching from the earth's surface to the stratosphere which acts as a virtual ceiling.\n\nThe change of seasons, change of day and night, the Coriolis effect, the irregular albedo (reflectivity) of land and water, humidity, and the friction of wind over different terrain are some of the factors which complicate the flow of wind over the surface.
590403
heh... are you referring to ecological endangered hotspots or hot spots under plates that cause volcanic activity?\n\nThere are... way to many ecological hot spots particularly in tropical areas in South America, Africa and South Asia.\n\nAs for hot spots associated with plate tectonics, there are many I'm sure but the Hawaiian Island chain is probably the biggest and longest.  Yellowstone wouldn't be a hot spot really, it's pretty close to a plate boundary and it's activity I would think is left over from this.  Hot spots are unusual for continental plates.  It seems like many island chains could have been formed by similar hot spots under ocean plates though.
107641
Almost all of Earth's internal temperature is radiated outward from its molten core. There is also some heating, particularly nearer the Earth's surface, resulting from physical stresses brought on by Earth's rotation, motion around the Sun, and by gravitational interaction with the Moon.
138678
Wind energy is actually growing at a double digit rate, albeit from a very small percentage of the energy total.  Like solar and geothermal it's about as green as energy can get, so it is very responsible in that sense.   It will take strong government committment to spur it's use because it's still rarely competitive with fossil-based energy.   The Wall Street Journal had an article last week about the difficulty of the boldest experiment yet - a Danish island that has tried with limited success to get off shore wind energy as the primary source (it was going OK until the government withdrew subsidies).
400871
A thermal power plant uses heat.  I don't know what a 'themal" power plant is.  If you can't operate a spell-checker, I doubt you have the gray matter to expend on thermo-dynamics.
567517
Sounds like the Bush administration's idea of an alternative energy source!\n\nNo, in all seriousness, the greenhouse effect itself (i.e. increasing temperature of the Earth) would not permit any sort of extraction of energy.  You need a temperature gradient to extract thermal energy, and the greenhouse effect is warming the entire globe, so that there is no cold reservoir to pump the heat into, doing work (generating electricity) in the process.\n\nHowever, indirectly, rivers from glaciers melting as a result of global warming could be used for hydroelectric power.  However, these glaciers won't melt all at once, but rather over the course of decades, so there won't be much more hydroelectric generation opportunities than exist today.
23518
Hi Rams, The simple answer is heat, produced by radioactive decay within the Earth. In effect the mantle is a vast heat engine. However, the details have been controversial over the years. Now a picture is emerging, produced by a geophysical technique called seismic tomography. This has imaged subducting slabs of cold dense lithosphere drooping all the way down to the core-mantle boundary. This represents a return flow for convection, affecting the entire mantle. The mantle cools however principally by passive upwelling at mid-ocean ridges. So the mantle contains convection cells. The convection is very slow but relentless, driving the plates at a few cm a year. In essence the plates are just a stiff outer skin, pulled by the subducted slabs. So it is the nature of the outer, cool part of the Earth that organises the convection in the deep Earth. The core-mantle boundary becomes the graveyard of the plates. But plate tectonics only accounts for about 90% of the current Earth heat engine. The other 10% drives from mantle plumes that originate from the core-mantle boundary. Plumes are lava-lamp-like upwellings, although they can take about 100 million years to reach the upper mantle. Plumes are represented on the Earth's surface as "hot-spots" - sites of apparently anomalous volcanic activity such as are found on the Hawaiian islands.\n\nFollowing are links to some excellent resources that answer your query, along with some illustrations :\n\nhttp://pubs.usgs.gov/publications/text/unanswered.html\nhttp://element.ess.ucla.edu/publications/1998_Earth2/1998_Earth2.htm\nhttp://geology.com/plate-tectonics/\n\nMerry Christmas!
324403
There is no such thing as non-renewable energy.  Energy is simply converted from one form to another and never actually gets 'used'.\n\nThere are non-renewable SOURCES of energy however and other answerers have pointed these out.\nHydrocarbons, like coal, oil and gas are considered non-renewable because once you have converted their (stored) chemical energy in to heat energy by burning them, you will have to wait several million years before the energy is stored back in a chemical form for you to burn again.\nWind power is considered renewable since wind is a form of mechanical energy which is converted thermal energy from the sun.  We use wind turbines to control the mechanical energy of the wind and convert it into electrical energy.  The sun provides more thermal energy, which makes more wind and so the source of energy is renewed on a useful timescale.\n\nMost energy on Earth comes from the sun.  Wind is driven by the sun as I have explained.  Solar energy is obviously sun powered.  Chemical energy sources like wood, coal, gas, etc also come from the sun since plants capture the solar energy and store it in their structure as chemical energy.  This same energy is what is released by burning.\nThe most notable source of non-sun derived energy on Earth is that of the tides.  Gravitational effects between the Earth and the moon (alright, and the sun a bit) cause the tides.  Gravitational energy converted to mechanical energy.  We can use this as a renewable source as well.\n\n<flight of fancy>\nIt is theoretically possible to have so many turbines extracting energy from the wind that there isn't enough left over to keep the winds blowing, which would have rather a startling effect on regional climates.  Turn the turbnes off however and the sun would soon start things up again.\n</flight of fancy>
1026362
Alright, check this out.  I work in the oil field, and alot of the work I have been doing lately is drilling wells for a natural gas power plant about 80 miles away.  It's asinine.  Nuclear power, with the right planning and infrastructure, makes great sense.  All of our currently running nuclear plants were built more the 27 years ago, we have much better, more efficient, and safer technology now.  We've exported much of our expertise in this field to France.  They get almost 80% of their electricity from nuclear power, never had a problem.  Waste is an issue, but if we were to develop a repository in a geologically inert place, separated from any local aquifer, it's fine.  The newer breeder reactors (like we've built in France), generate less then half of the lower level waste then the ones were currently still using, and about a tenth of the high level waste.  If we were to dig a system of caverns in the Canadian Shield (an area that covers most of north central Canada), this mass of gneiss has been geologically inert for 2.6 billion years, is far away from any major population center, and is not a source of any aquifers (except for some minor faulting, but with proper engineering, that's not a problem).  We really should be looking towards the future, and I believe that nuclear energy could carry the US for a  couple of centuries of its energy needs.
128885
A renewable energy source is one that can be "renewed" , or can be produced again. Examples are wind, hydroelectric, and geothermal. Non-renewable energy comes from sources that cannot be created again, such as petrolium and coal.\nOur world is now looking for new renewable energy sources to take the place of nonrenewables when they run out.
833516
Renewable resources include such energies as wind, solar (sun) power, geothermal (heat from the ground) and hydro (water).  They are beneficial for the Earth because they do not produce harmful emissions and can, theoretically, last forever.  They are often considered a hindrance (or just annoying) to society because they are rarely cheap to harness (or at least not cheaper than fossil fuels) and a suitable infrastructure is not properly in place for such energies.\n\nNon-renewable resources, on the other hand, include such energies as fossil fuels (this is turned from crude oil into gasoline), natural gases (burnt in many processes for energy), wood (this is considered non-renewable if the rate at which it is used is greater than the rate at which it is created), coal (burnt in many processes for energy) and pretty much any Hydrocarbon.  Non-renewable resources are considered useful and valuable because they are generally cheap to use and have been used throughout history.  For this reason, the infrastructure around non-renewable resources is substantially greater than that of its renewable counterpart.  These energies cause a greater problem than they solve because went used, they produce harmful emissions such as carbon dioxide.  These chemicals are detrimental to one’s health and are a contributing factor in the Greenhouse Effect (the leading cause of global warming in the world).\n\nObviously, renewable resources pose a brighter prospect for the future.\n\nI hope this was an informative answer!
49283
The heat is radiated from the core of the Earth - from the heat buildup from when the Earth was forming - the conversion of gravitational energy to heat.  It is cooler now than when the planets were forming, but it's still pretty dang hot at the core, and that's the heat that warms up the asthenosphere.
208864
Here is a little information about Nuclear Energy:\nhttp://home.clara.net/darvill/altenerg/nuclear.htm
1171618
There are two main sources of heat on the Earth.  The first obvious one is the Sun.  The second is the Earth itself.  The ground holds the heat from the Sun, but also, radioactive decay within the Earth produces massive amounts of heat.  Most of the heat on the Earth comes from within it.  Because most of the heat comes from the ground itself, as you get farther away from it, it gets colder.
423132
It all depends on the area where you live. Like people in Florida would benefit most from Solar energy. People living near dams would benefit more form water energy. Wind energy would benefit people who live in the mountains. It all has to do with the geography of the land. But dealing with fuel options... I'm stumped!