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	Geothermal power - Wikipedia, the free encyclopedia
		Geothermal power is the use of geothermal heat for electricity generation.
		Geothermal power is very cost-effective in the Rift area of Africa.
		Geothermal power is generated in over 20 countries around the world including Iceland (producing 17% of its electricity from geothermal sources), the United States, Italy, France, New Zealand, Mexico, Nicaragua, Costa Rica, Russia, the Philippines (production output of 1931MW (2nd to US, 27% of electricity), Indonesia and Japan.
	en.wikipedia.org /wiki/Geothermal_power (1386 words)

	Renewable energy - Wikipedia, the free encyclopedia
		Wind power is renewable and is one of the few energy sources that contributes to greenhouse gas mitigation because it removes energy directly from the atmosphere without producing net emissions of greenhouse gases such as carbon dioxide and methane (other greenhouse gas mitigating energy sources include solar thermal and ocean thermal).
		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.
		Water power eventually supplanted animal power for mills, wherever the power of falling water in rivers was exploitable.
	en.wikipedia.org /wiki/Renewable_energy (5712 words)

	Geothermal Energy Association ALL ABOUT GEOTHERMAL ENERGY - POWER PLANT COST
		While the cost of a new for geothermal power plant is higher than that of a comparable natural gas facility, for natural gas construction costs account for only one third of the total price of the facility, while the cost of the fuel at a natural gas facility represents two thirds of the cost.
		Geothermal fluids from the geothermal reservoir may have high scaling(6) and/or corrosion(7) proprieties that affect the design and quality of construction materials needed to build the power plant, thereby impacting the project’s costs.
		Because geothermal has such low fuel costs, and uses a fuel supply that is not transported long distances or reliant on unstable markets, the price of geothermal power remains constant over the life of the plant.
	www.geo-energy.org /aboutGE/powerPlantCost.asp (2409 words)

	Geothermal - Wikipedia, the free encyclopedia
		Geothermal (geology), heat sources from within the Earth.
		Geothermal desalination, the production of fresh water using heat energy extracted from underground rocks.
		Geothermal heating, a method of heating and cooling a building using underground heat.
	en.wikipedia.org /wiki/Geothermal (115 words)

	Geothermal power - Facts, Information, and Encyclopedia Reference article
		Geothermal power is generated in over 20 countries around the world including Iceland (producing 17% of its electricity from geothermal sources), the United States, Italy, France, New Zealand, Mexico, Nicaragua, Russia, the Philippines, Indonesia and Japan.
		Currently there are few geothermal resource areas capable of generating electricity at a cost competitive with other energy sources, particularly natural gas.
		Geothermal areas without steam are called hot dry rock areas and methods for exploiting them are in development.
	www.startsurfing.com /encyclopedia/g/e/o/Geothermal.html (847 words)

	Geothermal Education Office - Power From the Earth's Heat
		Geothermal installations don't require damming of rivers or harvesting of forests -- and there are no mine shafts, tunnels, open pits, waste heaps or oil spills.
		Geothermal "fuel'" - like the sun and the wind - is always where the power plant is; economic benefits remain in the region and there are no fuel price shocks.
		Geothermal district heating systems pump geothermal water through a heat exchanger, where it transfers its heat to clean city water that is piped to buildings in the district.
	geothermal.marin.org /pwrheat.html (2146 words)

	Using Geothermal Energy in Montana (Site not responding. Last check: 2007-10-23)
		A few homeowners and businesses have found that geothermal water, warmed by the natural heat of the earth's interior, can be a source of clean, renewable energy to reduce their heating bills.
		Geothermal piping is often insulated to prevent heat loss from the pipe before the water reaches its end use.
		Geothermal resources as cool as 85° F are being used to heat Montana homes, greenhouses, and commercial buildings.
	www.montanagreenpower.com /renewables/geothermal (1846 words)

	Energy Resources: Geothermal
		Geothermal energy has been used for thousands of years in some countries for cooking and heating.
		The first geothermal power station was built at Landrello, in Italy, and the second was at Wairekei in New Zealand.
		Geothermal energy is an important resource in volcanically active places such as Iceland and New Zealand.
	www.darvill.clara.net /altenerg/geothermal.htm (553 words)

	Geothermal (Site not responding. Last check: 2007-10-23)
		Geothermal power plants have sulfur-emissions rates that average only a few percent of those from fossil-fuel alternatives.
		There are many geothermal sources in Alaska but only a few are available for producing good quality steam for direct use with a turbine, for producing electricity, and those that are available generally are not always in the place they are most needed.
		Because geothermal energy is associated with low emittance of SO and other pollutants and because there are many geothermal sources in the state, there is potential.
	www.uaf.edu /energyin/webpage/pages/renewable_energy_tech/geothermal.htm (919 words)

	The History of Geothermal Power in Idaho
		Geothermal energy has been used to generate power since 1904 when a facility was built in Italy.
		In dry steam power palnts, the steam (and no water) shoots up the wells and is passed through a rock catcher (not shown) and then directly into binary cycle power plant in Nevada.
		In a binary cycle power plant (binary means two), the heat from geothermal water is used to vaporize a "working fluid" in separate adjacent pipes.
	www.idwr.state.id.us /energy/alternative_fuels/geothermal/detailed_power.htm (829 words)

	Geothermal Power News
		The geothermal system consumes additional electricity to run its components but that extra cost is surpassed by the savings from using the earth as the system's "fuel." Geothermal systems do require back-up heating sources in areas like Wisconsin that are plagued by bitter cold.
		Nevada Geothermal Power Inc. is a renewable energy company exploring and developing geothermal projects in the United States to provide electrical energy that is clean, efficient and sustainable.
		Polaris Geothermal's San Jacinto-Tizate geothermal power project is the 157th project in the world to qualify and be registered to sell carbon credits and ranks as the 16th largest to be so registered.
	www.alternative-energy-news.info /geothermal-power (5358 words)

	Geothermal Energy (Site not responding. Last check: 2007-10-23)
		Geothermal energy - heat from the earth - is an important energy source having environmental and economic advantages over fossil and nuclear energy sources.
		There are nearly 70 geothermal power plants currently operating in California, Nevada, Utah, and Hawaii, with higher temperature geothermal resources present in most of the western U.S. and the Gulf coast.
		Geothermally produced electricity provides an economic benefit to the nation, in that the electricity is dependable, has high availability for use, and is produced from a domestic source.
	www.sustainableenergy.org /resources/technologies/geothermal.htm (442 words)

	REPP-CREST : GEOTHERMAL RESOURCES
		Unlike solar, wind, and hydro-based renewable power, geothermal power plant operation is independent of fluctuations in daily and seasonal weather.
		Geothermal power plants typically produce electricity about 90% of the time, though can be run up to 98% of the time if the contract price of power is high enough to justify increased operational and maintenance costs.
		In comparison, coal-fired power plants are typically run 65–75% of the time, while nuclear plants in the United States have run at very high capacity factors (95–98%) in recent years due to lucrative market and regulatory conditions.
	www.repp.org /geothermal/geothermal_brief_power_technologyandgeneration.html (822 words)

	Power Technology - Mokai Geothermal Power Plantl, New Zealand
		A $40 million expansion of the Mokai geothermal power plant to 100MW is planned for completion by April 2005.
		The main geothermal area is centred near the towns of Taupo and Rotorua.
		The two Mokai power plants are the first stages of a modular, phased development and use approximately 40% of the available geothermal resource.
	www.power-technology.com /projects/mokai (1004 words)

	Electricity from Geothermal Energy
		This "geothermal" heat circulates within the rock or is transferred to underground reservoirs of water, which also circulate under the earth's crust.
		Geothermal resources have been harnessed as an energy source since the dawn of civilization, when natural hot springs were first used for cooking and bathing.
		Heat from geothermal water is transferred to a second (binary) liquid, which flashes into vapor upon heating, and that vapor is used to drive turbines.
	www.powerscorecard.org /tech_detail.cfm?resource_id=3 (550 words)

	REPP-CREST : GEOTHERMAL RESOURCES
		Geothermal fluids contain dissolved gases, mainly carbon dioxide (CO) and hydrogen sulfide (H2), small amounts of ammonia, hydrogen, nitrogen, methane and radon, and minor quantities of volatile species of boron, arsenic, and mercury.
		Geothermal power plant CO emissions can vary from plant to plant depending on both the characteristics of the reservoir fluid and the type of power generation plant.
		Geothermal installations don’t require damming of rivers or harvesting of forests, and there are no mineshafts, tunnels, open pits, waste heaps or oil spills.
	www.repp.org /geothermal/geothermal_brief_environmental_impacts.html (1225 words)

	Vast Geothermal Power from Yellowstone?
		With power grid expansions, energy from geothermal plants in the Yellowstone area along with wind turbines in the Midwest could be carried to population centers where it would be need the most.
		Geothermal energy recovery requires that boreholes be drilled down to where the heat is at.
		Geothermal power is extremely low impact, especially when compared to other sources of energy.
	cbll.net /articles/yellowstone-geothermal (1777 words)

	Geothermal Use, Power Plants - Utah Geological Survey
		Utah Power, a PacifiCorp company that merged with Scottish Power in 1999, has operated the single-flash, Blundell geothermal power station at the Roosevelt Hot Springs geothermal area near Milford in Beaver County since 1984.
		Intermountain Geothermal Company, a subsidiary of California Energy Company and the current field developer, produces geothermal brine for the Blundell plant from wells that tap a geothermal resource in fractured, crystalline rock.
		In 1990, Provo and the Utah Municipal Power Agency dedicated the Bonnett geothermal power plant, which became the third geothermal power facility to go on-line at Sulphurdale to provide electricity for Provo.
	www.ugs.state.ut.us /emp/geothermal/powerplants.htm (401 words)

	Geothermal Power: University of Utah News Release: June 6, 2001
		Until recently, geothermal has not been economically competitive with other power sources because it can cost $1 million to $4 million to drill a single well, and finding the best place to drill is difficult.
		Hulen said northern Nevada already gets 10 percent of its power from geothermal fields, and 5 percent of California's power is geothermal - primarily from The Geysers, which now "is the world's biggest producing geothermal field," with output of about 1,100 megawatts, equivalent to a nuclear power plant.
		Geothermal already far outstrips solar as a source of U.S. electricity, Hulen said, noting that last year, almost one-half percent of U.S. energy consumption was from geothermal, compared with one-fiftieth of a percent from solar.
	www.utah.edu /unews/releases/01/jun/geothermal.html (803 words)

	The Energy Story - Chapter 10: GEOTHERMAL ENERGY (Site not responding. Last check: 2007-10-23)
		This power plant is Geysers Unit # 18 located in the Geysers Geothermal area of California.
		A geothermal power plant is like in a regular power plant except that no fuel is burned to heat water into steam.
		The steam or hot water in a geothermal power plant is heated by the earth.
	www.energyquest.ca.gov /story/chapter11.html (1113 words)

	August 2005 Geothermal-biz.com Newsletter
		This year's theme is "Geothermal Energy: The World’s Buried Treasure." With its expansive Technical Program, the GRC 2005 Annual Meeting will also provide a unique opportunity for exhibitors to showcase their projects, equipment, supplies and services at the GEA Trade Show.
		Abstracts are sought for a geothermal session at the American Geophysical Union Fall Meeting scheduled for 5-9 December 2005 in San Francisco, California.
		U.S. Geothermal Inc. made the final payment on the 560-acre property on 9 August 2005, becoming sole holder of surface and geothermal energy rights and associated physical assets of the Raft River geothermal project.
	www.geothermal-biz.com /newsletter/Aug-2005.htm (6545 words)

	Geothermal Energy
		Geothermal is great for schools because it uses a lot less energy than other types of heating and cooling equipment.
		A geothermal power plant works by tapping into steam or hot water reservoirs underground; the heat is used to drive an electrical generator.
		The Geysers power plant in northern California is the world’s largest geothermal power plant, producing enough electricity to light up more than 22,000 homes.
	www.powerhousekids.com /stellent2/groups/public/documents/pub/phk_ee_re_001506.hcsp (442 words)

	Barber-Nichols: Products : Waste Heat & Geothermal Power Generation Equipment
		The end user is capturing waste heat from their manufacturing process, turning it into 2.7 MW (Net) of electrical power, and using it to offset their dependence on the public utility.
		The power now being generated was incorporated back into Coastal's manufacturing process and used to decrease the company's dependence on the local electrical utility.
		In geothermal power plants, NCG enters the process equipment along with the steam.
	www.barber-nichols.com /products/waste_heat_power_generation_equipment (531 words)

	Geothermal Power Plants in the Great Basin
		Source of data for Nevada power plants is the Nevada Division of Minerals Geothermal Update of March, 2003.
		Mag = “Magmatic” geothermal system, meaning that the source of heat is believed to be a magma at depth or a recently solidified intrusion at depth.
		Ext = “Extensional” geothermal system, meaning that the source of heat is believed to be the earth’s crust, and that the reason the water is high-temperature is because of active faults which allow groundwaters to penetrate deeply into the crust, where a high temperature gradient can heat the waters to high temperatures.
	www.unr.edu /geothermal/MetadataPages/power_plants.htm (457 words)

	Geothermal Power Plants
		Geothermal electricity is produced using either of three types of power plant - dry steam, flash steam and binary power systems.
		In the Flash steam syste, very hot, high pressure water is depressurized falshed to produce steam which is then expanded through a turbine to produce electricity.
		The remaining secondary fluid and the geothermal fluid are both recycled with the latter being returned to the reservoir, creating a closed cycle where nothing is emmitted.
	www.mtholyoke.edu /proj/cel/cep/alana/geothermal_plants.htm (230 words)

	Geothermal-biz.com: Why Geothermal?
		Geothermal energy has significant potential to generate power and provide energy for direct use applications
		Many of the 19 GeoPowering the West states have geothermal resources that can be used to generate power or provide energy for direct use applications (e.g., aquaculture, greenhouses, district and space heating, spas and resorts, and other agricultural and industrial uses).
		Neither the US Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights.
	www.geothermal-biz.com /why_geo.htm (377 words)

	Sierra Geothermal Power Corp. - Home Page - Mon Sep 4, 2006 (Site not responding. Last check: 2007-10-23)
		Leases include ten and one half sections of geothermal land located at Hot Springs Ranch in the Pumpernickel Valley, Humboldt County, Nevada, 30 km southeast of the town of Winnemucca.
		Initial exploration on the property culminated in the drilling of a single geothermal test well to a depth of 919.6 metres (2900 ft) indicating that the Pumpernickel site has excellent potential for the discovery of an electricity-grade geothermal resource.
		The current exploration objective is to confirm the indicated potential of the project and advance the project to the bankable feasibility stage within the next 18 months.
	sierrageopower.com /s/Home.asp (188 words)

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