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Geothermal

Includes questions related to generating electricity through the use of naturally occuring heat sources.

2,459 Questions
Energy
Geothermal

What are the advantages and disadvantages of geothermal energy?

Primarily, the earth generates internal heat by radioactive decay, which continuously rises and radiates from the surface. Harvesting this geothermal energy involves pumping water down a drilled shaft, deep into the earth where it collects heat, creating steam. The steam is then directed upward through another shaft to turbines that generate electricity. The recovered water, now cooled, is again pumped down the original shaft in a continuing cycle.

Advantages:

  • Cleaner: energy source than fossil fuels.
  • Base-load: energy source.
  • Safer: to develop and use, than fossil fuels.
  • Conserves: fossil fuels, still required in some applications,
  • Contributes to diversity: of energy sources.
  • Independent: of weather

Disadvantages:

Not universally available.

Emissions:

  • 0 - 88 lbs of CO2 per megawatt-hour (comparatively negligible);
  • trace amounts of mercury, boron, arsenic, antimony, etc.
  • Localized Depletion:In 3 oldest sites, use outruns energy renewal.
  • Geological instability: Basel, Switzerland operation suspended (10,000 seismic events/6 days).
  • Hazard: exploration entails significant risks.
  • 20% failure rate: with significant harm to environment.
High Cost:

Drilling and exploration.

Corrosion maintenance can out-weigh benefit.

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Geothermal
Math and Arithmetic

What the example of improper subset?

If you have a set S, the only improper subset of S is S itself. An improper subset contains all elements of S and no others. It is therefore equivalent to S.

For example if S ={1,2,3} then the improper subset is {1,2,3}, and an example proper subset is {1,2}.

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Energy
Geothermal

What is Geothermal Energy?

Geothermal energy is heat from underground that is used to make energy.

The earth contains a huge amount of liquid or hot rock at a relatively short distance from the surface. Some of it is welling up now at various points in the world. Hot springs are the result of water seeping into the heated rocks and coming back up hot. In a geothermal power plant water is piped down to the hot area and the returning boiling water is used to produce electricity. It is a fact that lava up welling in the mid-Atlantic is moving Europe and America apart. That is a large amount of geothermal energy at work.

Geothermal energy is thermal energy generated and stored in the Earth.

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Renewable Energy
Wind Power
Geothermal

Is geothermal energy cheaper than wind energy?

In short: no.

Geothermal energy harnessing is still in its infancy compared to wind energy, and therefore, more expensive. Overall geothermal energy has been done on a very small scale, but technological breakthroughs need to occur before it can be successfully worldwide.

Then again, with the U.S. energy industry being deregulated, wind energy can be more expensive than other energy types. For instance, when I lived in western Arkansas, I used OG&E as my energy provider, and they offered wind power for just 4.5 cents per kilowatt hour, which was half of a conventional plan. In Texas, providers generally charge 2 cents MORE per kilowatt hour for using purely wind power than conventional.

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Renewable Energy
Geothermal

What are the parts of geothermal power plants?

  • Two holes are drilled down into the rock, often several kilometres deep, to reach very hot rock layers.
  • Water is pumped down one and comes up the other, bubbling and steaming.
  • This steam (or hot water) is used to spin a turbine (the same way as a coal fired power station).
  • Electricity generated is fed into the grid and is sold to customers.
  • The equipment needed :
    • Water, which can be reycled indefinitely.
    • A pump.
    • A turbine generator.
    • And originally, a huge drill to drill the shafts.
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Nuclear Energy
Geothermal

Where does the water used to make steam in a power plant come from?

It is initially just normal mains water, but then it is purified by a demineralisation plant, so that water turning to steam does not leave deposits in the steam raising units or in the reactor in the case of a BWR. The steam is condensed to water after going through the turbine, and then recirculates, so the water makeup only has to replace loses due to leakage.

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Energy
Renewable Energy
Geothermal
Example Sentences

What is geothermal?

Answer

The word geothermal comes from the Greek words geo(earth) and therme(heat). So geothemal energy is heat from within the earth.

It is used to heat homes, buildings, and other public areas. Alternatively, sometimes the heat is used to generate electricity. One country that uses geothermal energy regularly is Iceland.

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Geothermal

How is geothermal energy stored for later use?

Geothermal energy can be stored in batteries, like all other electrical energy. There is no reason why geothermal energy has to be stored, as it can be produced round the clock, unlike wind and solar.


A:The energy is stored in the form of dry steam which is water vapor with out water droplets, wet steam which is a mixture of water vapor and water droplets, and hot water trapped in fractured or porous rock.
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Environmental Issues
Global Warming
Geothermal

What is the environmental impact of using solar energy?

The environmental impact of using solar energy is negative at the start with the cost of the materials and the cost of production of the equipment. It balances out after a few years and the impact is then positive.

With solar hot water, it is the cost of the tank and the evacuated tubes on your roof, and the small electric pump to circulate the water. After that initial expense the only ongoing impact is the small electric pump. The initial cost should be recovered in two or three years, depending on your local price of fuel and after that the environmental impact is positive.

With solar panels that generate electricity (PV, or photovoltaic cells), the cost of the materials and the cost of production is the negative environmental impact. Again after a few years that impact is balanced out by the positive features of generating your own electricity from the sun.

A:Disadvantages: -
  • When people are producing solar panels they have leftover stuff like Silicon Tetrachloride, and they have to dispose of it, which can pollute.
  • When creating solar panels the manufacturers have to use energy, which pollutes the air, creates heavy metal emissions, and greenhouse gases.
  • Can't use solar energy during the night
  • Can't use solar energy when it is very dense and foggy outside

Advantages:

  • Using solar panels doesn't pollute the air.
  • Using solar panels doesn't release carbon dioxide, nitrogen oxide, sulphur dioxide, or mercury into the atmosphere as many traditional forms of electrical generation do.
  • The solar panels operate silently, have no moving parts, and don't release offensive smells.
  • Doesn't contribute to acid rain, global warming, or smog.
A:It provides power for our use while not continuously using resources. This reduces the cost and effects of obtaining fuel and transporting fuel, and once in place the panels do not generate polluting material while functioning.
575859
Science
Energy
Volcanoes
Geothermal

What energy is contained in hot magma?

Geo-thermal Energy

717273
Physics
Energy
Geothermal

True or false A heat engine is a device that converts heat into work?

False its not possible to convert all heat into work as some of its being used as energy

APEX

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Geothermal

Why don't people use more geothermal energy?

People don't use geothermal heat in their homes because in most cased it doesn't make economic sense. The additional installation costs are not paid back quick enough with operating cost savings. A lot of them don't make sense even with the 30% tax credit.

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Renewable Energy
Solar Power
Wind Power
Geothermal

What is meant by power systems which is used in renewable energy technologies?

I'm not sure if I understand your question completely,

but I believe that you are asking about the ways that energy would be accumulated, stored, and distributed from any specific form of renewable energy production.

737475
Heating Ventilating and Air Conditioning
Waste and Recycling
Geothermal

Geothermal pumps can be used for heating but not cooling?

false They are used for both.

true, they can be used for either one. thanks for making me miss the question dip sh*t

FALSE....^^^THANKS FOR MAKING ME MISS THE QUIETION DIP SHÏT

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Geothermal

Where can be placed geothermal power plant?

Anywhere where there are hot rocks fairly close to the surface of the earth.

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Energy
Geothermal

Is geothermal energy technology widely accepted today and why?

yes because it is renewable

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Geology
Environmental Issues
Geothermal

How is geothermal energy used to create electricity?

Geothermal power plants use steam from water heated underground to spin turbine blades that create electricity.

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Science
Earth Sciences
Geothermal

How is water heated for geothermal power plants?

Magma. The magma flows closely (separated by earth usually) to the water that is used to create steam which is then used to spin turbines. The same way that nuclear power is harnessed.

555657
Environmental Issues
Energy
Geothermal

Is geothermal energy used in the state of Georgia?

Yes, it not very reliable though, and inital costs are high. The cost of managing it though isn't a lot at all.

555657
Physics
Energy
Geothermal

How is thermal energy used?

Thermal energy, heat, is used in all sorts of ways. We use it to keep warm (by heating structures and vehicles), prepare food (both at home and commercially), and to make zillions of products (manufacturing and industrial applications). We can convert thermal energy into electrical energy, too. Thermal energy from the sun supports life on this planet. We've used that for as long as a man has been on earth. There just isn't a way to count all the applications. Use the link below to the Wikipedia post on heat to read more.

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Energy
Geothermal

Why are only some countries using geothermal?

Only nations that are in volcanic areas are good candidates for geothermal power. So, The USA (in California) has geothermal power, and Japan. But the world leader for geothermal energy is a little frozen island with a fantastic mix of volcanoes and glaciers; Iceland!

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Geothermal

Is geothermal steam renewable?

yep.

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Earth Sciences
Energy
Geothermal

Where does all energy on earth come from?

MOST of the energy comes from the Sun.

MOST of the energy comes from the Sun.

MOST of the energy comes from the Sun.

MOST of the energy comes from the Sun.

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Energy
Geothermal

What is a energy source for hydrothermal vent?

The heat from deep in the earth's mantle.

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Physics
Social Sciences
Earth Sciences
Geothermal

What are the cost of geothermal energy?

If you just got your degree to teach music theory, you should have a solid idea of how to go about it. Think about when you started in the field. What did you learn first? How was it presented? What methods were most effective. Any school requires you to have a lesson plan, so get started on that, which will help you map out your daily lessons.

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