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What is the importance of geothermal energy for Switzerland ?

FAQ-Frequently asked questions about geothermal energy-CREGE
Currently, geothermal heat is derived essentially from vertical borehole heat exchangers (BHE) used to heat family-sized houses. This type of application is widely used with more than 32,000 BHE installed in Switzerland (in 2004), and will continue this rapid development in years to come. The technology of Enhanced Geothermal Systems (EGS), formerly known as Hot Dry Rock will soon see its first installation in Basle operational and will be able to provide electricity and heating in 2009.
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WHAT IS GEOTHERMAL ENERGY?

Geothermal Education Office - Power From the Earth's Heat
Our earth's interior - like the sun - provides heat energy from nature. This heat - geothermal energy - yields warmth and power that we can use without polluting the environment. Geothermal heat originates from Earth's fiery consolidation of dust and gas over 4 billion years ago. At earth's core - 4,000 miles deep - temperatures may reach over 9,000 degrees F.
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HOW MUCH ELECTRICITY IS FROM GEOTHERMAL ENERGY?

Geothermal Education Office - Power From the Earth's Heat
Since the first geothermally-generated electricity in the world was produced at Larderello, Italy, in 1904 the use of geothermal energy for electricity has grown worldwide to about 7,000 megawatts in twenty-one countries around the world. The United States alone produces 2700 megawatts of electricity from geothermal energy, electricity comparable to burning sixty million barrels of oil each year.
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WHAT PARTS OF THE WORLD HAVE GEOTHERMAL ENERGY?

Geothermal Education Office - Power From the Earth's Heat
For electricity and direct use: Geothermal reservoirs that are close enough to the surface to be reached by drilling can occur in places where geologic processes have allowed magma to rise up through the crust, near to the surface, or where it flows out as lava. The crust of the Earth is made up of huge plates, which are in constant but very slow motion relative to one another.
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How much geothermal heat is available in Switzerland ?

FAQ-Frequently asked questions about geothermal energy-CREGE
Employing currently available techniques to quantify the heat available in the subsurface, there is currently sufficient heat available to satisfy the country’s energy requirements for hundreds of years. The limitation does not arise due to energy availability but rather due to the economic returns for each one of the various geothermal energy exploitation techniques available. The earth’s heat is an inexhaustible energy resource in Switzerland.
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HOW HAVE PEOPLE USED GEOTHERMAL ENERGY IN THE PAST?

Geothermal Education Office - Power From the Earth's Heat
From earliest times, people have used geothermal water that flowed freely from the earth's surface as hot springs. The oldest and most common use was, of course, just relaxing in the comforting warm waters. But eventually, this "magic water" was used (and still is) in other creative ways. The Romans, for example, used geothermal water to treat eye and skin disease and, at Pompeii, to heat buildings.
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HOW IS ELECTRICITY GENERATED USING GEOTHERMAL ENERGY?

Geothermal Education Office - Power From the Earth's Heat
In geothermal power plants steam, heat or hot water from geothermal reservoirs provides the force that spins the turbine generators and produces electricity. The used geothermal water is then returned down an injection well into the reservoir to be reheated, to maintain pressure, and to sustain the reservoir. There are three kinds of geothermal power plants. The kind we build depends on the temperatures and pressures of a reservoir.
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WHAT ARE SOME OF THE ADVANTAGES OF USING GEOTHERMAL ENERGY TO GENERATE ELECTRICITY?

Geothermal Education Office - Power From the Earth's Heat
Clean. Geothermal power plants, like wind and solar power plants, do not have to burn fuels to manufacture steam to turn the turbines. Generating electricity with geothermal energy helps to conserve nonrenewable fossil fuels, and by decreasing the use of these fuels, we reduce emissions that harm our atmosphere. There is no smoky air around geothermal power plants -- in fact some are built in the middle of farm crops and forests, and share land with cattle and local wildlife.
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WHAT ARE SOME NON-ELECTRIC WAYS WE CAN USE GEOTHERMAL ENERGY?

Geothermal Education Office - Power From the Earth's Heat
Geothermal water is used around the world, even when it is not hot enough to generate electricity. Anytime geothermal water or heat are used directly, less electricity is used. Using geothermal water 'directly' conserves energy and replaces the use of polluting energy resources with clean ones. The main non-electric ways we use geothermal energy are DIRECT USES and GEOTHERMAL HEAT PUMPS.
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Geothermal-biz.com: FAQs
Geothermal energy is heat (thermal) derived from the earth (geo). It is the thermal energy contained in the rock and fluid (that fills the fractures and pores within the rock) in the earth's crust.
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back to top >> What is geothermal energy?

Green Mountain Energy Company: Frequently Asked Questions
Geothermal energy comes from heat trapped within the earth's crust, the same kind of heat that is evident in volcanic activity and geysers. Geothermal power plants tap steam and hot water trapped underground to convert that energy into electricity.
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ECONAR GeoSource Geothermal Heat Pumps
High-grade geothermal energy is the heat of the earth’s pressure that turns water into stream. Old Faithful at Yellowstone National Park is an excellent example. Low-grade geothermal energy is the heat within the earth’s crust. This heat is actually stored solar energy. ECONAR taps into this low grade geothermal energy and delivers big energy savings when heating, cooling and making hot water.
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What are the benefits of using geothermal energy?

POLARIS GEOTHERMAL INC.
First, it's clean. The energy can be extracted without burning a fossil fuel such as coal, gas, or oil. Geothermal fields produce only about one-sixth of the carbon dioxide that a relatively clean natural-gas-fueled power plant produces, and very little if any, of the nitrous oxide or sulfur-bearing gases. Binary plants, which are closed cycle operations, release essentially no emissions. Geothermal energy is available 24 hours a day, 365 days a year.
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Why is geothermal energy a renewable resource?

POLARIS GEOTHERMAL INC.
Because its source is the almost unlimited amount of heat generated by the Earth's core. Even in geothermal areas dependent on a reservoir of hot water, the volume taken out can be reinjected, making it a sustainable energy source.
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What is the Future of Geothermal Energy?

NextEnergy Geothermal | FAQs
Geothermal energy has a very promising future. The cost-efficiency of geothermal energy will only continue to improve, as geothermal technology is periodically upgraded, and as fossil fuel prices continue to rise. The era of inexpensive fossil fuels is over, and geothermal offers better and better savings to the consumer with each passing year.
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Where can I get more information on geothermal energy?

REPP-CREST : GEOTHERMAL
Understanding geothermal hydrothermal technology is essential to understanding geothermal energy in general. NREL offers an in-depth report on the status and future of geothermal electric power as well as a description of geothermal energy program highlights from 1999. For a historical perspective on geothermal energy, read The U.S. Geothermal Industry: Three Decades of Growth . The Idaho National Engineering and Environmental Laboratory offers an extensive overview of geothermal power.
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What is the benefit of geothermal energy?

The Raven
There are two main benefits to geothermal energy i. The operating costs of property is significantly lower, because the energy supply is coming from the heat energy in the earth for every dollar spent on operating the system there is $3 - $4 dollars of heat going into the property. ii. The building is much more environmentally friendly far less fuel is consumed.
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What are the environmental impacts of using geothermal energy?

POLARIS GEOTHERMAL INC.
Emissions are low. Only excess steam is emitted by geothermal flash plants. No air emissions or liquids are discharged by binary geothermal plants, which are projected to become the dominant technology in the near future. Salts and dissolved minerals contained in geothermal fluids are usually reinjected with excess water back into the reservoir at a depth well below groundwater aquifers. This recycles the geothermal water and replenishes the reservoir.
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What policies promote the proliferation of geothermal energy in the U.S.?

REPP-CREST : GEOTHERMAL
There are a number of policies that could be used to promote additional geothermal energy development. Among them are: Geothermal energy and other renewables often carry a heavier tax burden than their polluting counterparts. A 1998 California Energy Commission study found that tax loads carried by renewable energy options were found to be up to 220% higher than that of equivalent natural-gas fired generation. In particular, levelized tax loads for geothermal energy are 1.
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Who are some of the big commercial players in geothermal energy?

REPP-CREST : GEOTHERMAL
Geothermal power plants are owned by a number of firms throughout the world, both utilities and non-utilities. Information on the owners of U.S. geothermal power plants can be found by searching the U.S. Department of Energy Renewable Electric Plant Information System (REPiS Database) online. To search for suppliers of geothermal power plant technology, try the search engine provided by James & James (Science Publishers), the World Renewable Energy Suppliers and Services
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What are the main advantages of geothermal energy for the environment ?

FAQ-Frequently asked questions about geothermal energy-CREGE
Swiss geothermal energy installations generate no combustion by-products or gaseous emissions (CO2, NOx) by-products. Each installation therefore contributes to a reduction in greenhouse gases. No substance brought to the surface by geothermal fluids remains there since all fluids are re-injected at depth. In a geothermal energy installation, no dangerous substance is transported or stored at the surface.
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What makes geothermal energy an attractive alternative energy source ?

FAQ-Frequently asked questions about geothermal energy-CREGE
The earth’s heat is always available and depends neither upon the climate nor seasons. The earth’s heat is available practically everywhere. It is not necessary to store geothermal energy. The earth itself stores the energy. A system for exploiting the earth’s heat occupies very little space, since the vital aspects are out of sight below ground.
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Can Geothermal Energy be considered as a renewable energy resource ?

FAQ-Frequently asked questions about geothermal energy-CREGE
On a global scale, geothermal energy is the largest energy resource. Apart from the permanent heat flux that flows to the earth’s crust, groundwater circulation continues to bring heat to the earth’s surface. The sustainable management of a geothermal reservoir, notably in reinjected fluids after cooling permits exploitation to continue for many years. The earth’s heat is unlimited on the human scale and will be available for a long time for future generations.
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Is there another name for Switzerland ?

E d w i s e I n t e r n a t i o n a l - :: Overseas Educatio...
Yes, it is also called "Confoederatio Helvetica", therefore the abbreviation "CH".
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What are some large-scale applications of geothermal energy? Can I use it at my house?

REPP-CREST : GEOTHERMAL
The major larger-scale application for geothermal energy is the production of electricity from the earthâs interior heat. The largest geothermal plants in the world used for electricity generation are located in the Geysers area in Northern California, USA. The installed generating capacity at the Geysers reached its peak in 1989 at 1,967 megawatts (MW).
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