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Geothermal heat pumps

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Wikipedia About Geothermal Heating

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Geothermal heat pumps

In recent years, the term geothermal heating has frequently been used to refer to the heating and cooling that can be achieved through the use of a geothermal heat pump. This technique is generally for residential use. It involves a refrigerant liquid being pumped through pipes in the ground, heating the liquid. This liquid then is brought back into the house, and the heat exchanged. The same technique is used to cool the house.

Geothermal heat pumps take advantage of the natural constant temperature of the earth.Goswami, Yogi D., Kreith, Frank, Johnson, Katherine (2008), p. 9-4. During winter when the ground temperature is warmer than the air above it, geothermal heat pumps use the earth's soil (or groundwater) to recover the earth's heat. In contrast, an air-source heat pump will remove heat from the cold outside air and thus requires more energy.

In the summer months, geothermal heat pumps deliver heat to the same relatively cool soil (or groundwater) rather than delivering it to the hot outside air. As a result, the heat is pumped over a smaller temperature difference with a geothermal heat pump and this leads to higher efficiency and lower energy use.Goswami, Yogi D., Kreith, Frank, Johnson, Katherine (2008), p. 9-7.

Hot dry rock

The conditions necessary for water to circulate to the earth's surface are present in less than 10 percent of Earth's land area.Union of Concerned Scientists - How Geothermal Energy Works, http://www.ucsusa.org/clean_energy/renewable_energy_basics/offmen-how-geothermal-energy-works.html. Therefore, geothermal heating is not always a feasible option. Hot dry rock is a method of capturing the heat embedded in these dry areas. First, high-pressure water is pumped down a borehole and through the rocks to break them apart. Water is then pumped from the surface through the ground and the broken hot rocks. This causes the water temperature to rise. The hot water is returned to the surface through a second well and is used to drive turbines for electricity or to provide heat. The water is then returned to the ground and the process repeated.

Fenton Hill facility

There was an experimental facility built in 1974 in Fenton Hill, New Mexico that studied hot dry rock. A well was drilled 11,500 feet into rock at 430 °F to demonstrate the feasibility of hot dry rock technology. The water returned to the surface at 360 °F after being pumped down the well at 80 °F. The plant produced as much as five megawatts of power, proving that energy from hot dry rock can be extracted for practical applications.

Search results for Geothermal Heating

Geothermal Heat Pumps

This page is about ... geothermal heat pumps one of the most efficient, comfortable, and quiet heating ... homes requiring more heating or air conditioning ...www.consumerenergycenter.org/home/heating_cooling/geothermal...

Geothermal Education Office - Power From the Earth's Heat

... the 1960s, France has been heating up to 200,000 homes using geothermal water. ... Geothermal district heating systems pump geothermal water through a heat ...geothermal.marin.org/pwrheat.html

Distributor of complete geothermal heating and cooling systems ...

Geothermal DIY manufactures and distributes Terrasource Geothermal Do it Yourself Kits. ... What is Geothermal Heating / Cooling? ...geothermaldiy.com/index.html

WaterFurnace International, Inc.

Manufacturer of ground source heat pumps.www.waterfurnace.com/

Delta T Geothermal Heating and cooling in New York, Ohio and Pa

Geothermal heating and cooling in Pennsylvania with installs in New York, Ohio and Pa. ... If indoor air quality is a priority to you,consider geothermal heating. ...geothermal-heating.us/

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News about Geothermal Heating

Geothermal gets a boost in Ohio

Bureau County RepublicanOHIO — Usually people attend school or village board meetings because they either want something or need to complain. On Monday, it was different at the Ohio High School Board meeting. Representatives of the Edison Mission Group attended the meeting to deliver a check for $30,000 to help pay for the school’s ventilation/geothermal project.http://www.bcrnews.com/articles/2008/09/30/news/doc48e191244...

Solar, geothermal and more to be showcased in 'Green Tour' this Saturday

North Adams TranscriptWILLIAMSTOWN -- Five local homes will be open to the public on Saturday, Oct. 4, to showcase their "environmentally friendly" features as part of the 2008 Green Buildings Open House Tour.http://www.thetranscript.com/ci_10607605

West Valley City building taps the Earth for energy

The Salt Lake Tribune Posted: 5:33 PM- With 17 miles of pipe coiling beneath a 51,000-square-foot building, the new Ace Disposal Inc. facility will be West Valley City's first building with a geothermal system. http://www.sltrib.com/news/ci_10611059?source=rss

Local resident goes green

Pawling News ChronicleRobert Reilly, a man who wears many hats including the director of the Pawling Free Library and the town historian, is now adding environmental advocate to the list. He is equipping his 18th-century farmhouse with advanced heating technology to make it more energy efficient.http://www.zwire.com/site/news.cfm?newsid=20145402&BRD=1707&...

Truro home shows off its energy efficiency

The Falmouth Bulletin Imagine no concerns about heating oil prices, electric rates or power outages. One at 2 Corn Hill Road can forget about such plebian concerns and on Saturday the home will be open to the public. http://www.wickedlocal.com/falmouth/news/x1424439129/Truro-h...

News about Geothermal Heating

Lime Energy's AEM Subsidiary Awarded Contract for Geothermal Heat ...

MSN MoneyCentralEPA, GSHP technology is "the most energy efficient and environmentally clean of all heating and cooling options." "This contract adds to our long list of geothermal heat pump installations -- a technology that makes sense because of its outstanding ... http://news.moneycentral.msn.com/provider/providerarticle.as...

Read all 'In the home' posts in Green Tech

CNET NewsAll told, a geothermal heating and cooling installation, including duct work, will be about 50 percent more expensive than fossil fuel-based system, Roberg said. Drilling is typically the biggest portion of the bill because it can cost tens of ... http://news.cnet.com/8300-11128_3-54.html?categoryId=9729817

Wright County opens new $50 million Jail/LEC

Monticello TimesOne notably unique feature of the new facility is its geothermal heating and cooling system. The geothermal system was put into place as a result of the county board’s deliberate decision to reduce energy dependence, according to jail administrator ... http://www.monticellotimes.com/articles/2009/03/12/news/819n...

State giving energy help

Public OpinionThe state has a new $17-million loan and rebate program to help residents invest in insulating their homes and installing high-efficiency heating and cooling systems, geothermal heat pumps and energy saving windows and doors. The program is called ... http://www.publicopiniononline.com/ci_11857892?source=most_e...

Nuclear support triples under Tories

Globe and MailLastly, if governments were committed to using the best available technologies we would be building district based geothermal heating and cooling systems in cities across the country. The US EPA states "Geothermal heat pumps are the most energy ... http://www.theglobeandmail.com/servlet/story/RTGAM.20090310....

Search results for Geothermal Heating

Geothermal Technologies Program: Geothermal Heat Pumps

Two 36-ton geothermal heat pumps used at the College of Southern Idaho.http://www1.eere.energy.gov/geothermal/heatpumps.html

Geothermal Heating | GeothermalHeatingReport.com

The Internet's Best Source of Information About Geothermal Heatinghttp://www.geothermalheatingreport.com/

Geothermal Education Office

GEOTHERMAL HEAT PUMPS, GROUND-SOURCE HEAT PUMPS, GEO-EXCHANGE ... Marilyn Nemzer, Executive Director 664 Hilary Drive, Tiburon, CA 94920.http://geothermal.marin.org/

Geothermal Heat Pumps

This page is about ... Heat pumps move heat from one place to another - from outside to inside a home, for example.http://www.consumerenergycenter.org/home/heating_cooling/geo...

Geothermal heating cooling, goethermal heat pumps, closed loop, open ...

Stop paying those high utility bills! National energy consultant Doug Rye covers geotheraml heat pumps, cellulose insulation, caulking, air infiltration, hot water, and other ... http://www.dougrye.com/geothermal.html

Wikipedia results for Geothermal Heating

Geothermal heating - Wikipedia, the free encyclopedia

Geothermal heating is best defined as the use of the Earth's thermal energy for space and water heating. [1] It has been used since the time of the Roman Empire as a way of heating ... http://en.wikipedia.org/wiki/Geothermal_heating

Geothermal heat pump - Wikipedia, the free encyclopedia

A geothermal heat pump (also called GeoExchange, earth-coupled, ground source or water-source heat pump [1]) system is a heating and/or an cooling system that uses the Earth´s ... http://en.wikipedia.org/wiki/Geothermal_exchange_heat_pump

Geothermal power - Wikipedia, the free encyclopedia

Geothermal power (from the Greek roots geo, meaning earth, and thermos, meaning heat) is energy generated from heat stored in the earth, or the collection of absorbed heat derived ... http://en.wikipedia.org/wiki/Geothermal_power

Geothermal (geology) - Wikipedia, the free encyclopedia

In geology, geothermal refers to heat sources within the planet. Geothermal is technically an adjective (e.g., geothermal energy) but in U.S. English the word has attained frequent ... http://en.wikipedia.org/wiki/Geothermal_(geology)

Direct exchange geothermal heat pump - Wikipedia, the free ...

A direct exchange (DX) geothermal heat pump system is a geothermal heat pump system in which the refrigerant circulates through copper tubing placed in the ground.http://en.wikipedia.org/wiki/Direct_exchange_geothermal_heat...
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Ammo, Retail, Geothermal Energy

Ammo, Retail, Geothermal EnergyBusinessWeek Columnist Gene Marcial sees possible signs of a coming market recovery and tells why his sources are high on Alliant Techsystems, Wal-Mart, and Raser TechnologiesFlash - Video

Geothermal Energy

Geothermal EnergyTo illustrate the decisions on the energy package presented to the European Commission on 23/1/2008, the EC's audiovisual service has produced an infoclip on geothermal energy....RealMedia - Video

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RUSSIA: Kamchatka's geothermal station to provide cheap electricity at no cost to the environmentA geothermal power station built in a geyser valley in Russia's Kamchatka peninsula aims to provide the region with cheap electricity without polluting the environment....MPEG 4 - Video

Geothermal energy, energy of the fu...

Geothermal energy, energy of the future?REPORT: In the French countryside, technicians are experimenting with geothermal heat energy as an alternative energy source. (V. Morgan et P. Lovett)Windows Media - Video

SketchUp Model - Enhanced Geotherma...

SketchUp Model - Enhanced Geothermal Systems (EGS)An animation of the 50 MW Habanero EGS system, under development in Australia's Cooper Basin.Flash - Video

Answers for Geothermal Heating

GoldenCutie424Has anyone in Minnesota or Wisconsin Put a Geothermal heating and cooling system in their home?GoldenCutie424We lived in Indiana and the unit we had was great for air conditioning and not so great for heating without using the back up heating element which is electric...cost is not cheap.Aaron LHow much does a geothermal heating/cooling system cost?Aaron LDepending on what equipment you have, and how you plan on running your water loop i.e. a well, or a ground loop into a pond or lake. Realistically you are looking between 20 & 30 thousand dollars. ...Wes HIs geothermal heating in Anchorage, AK plausable, or is it just too cold there?Wes HJake G doesn't quite have it right. You don't need a volcanic vent for Geothermal heating. It is just a fact, that the deeper you go in the earth, the warmer it gets. Geothermal heating uses the...JayHow much does it cost to install a geothermal heating system?JayDepending on the size of the house and how many wells need to be dug. You might want to look into a cold climate heat pump. www.nyletherm.comkennel67franAnyone could tell me the price to install geothermal heating?kennel67franIt is generally not economic to install geothermal heating. If you have lots of money and are environmentally aware do it.
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