
	Where results make sense

Topic: Hydropower

Related Topics

Alternate energy

Hydro power

Water turbine

Energy directory

Wave power

Tidal power

Renewable energy

Ocean thermal energy conversion

Electricity generation

Wind power

Waterwheel

Hydroelectric

Water wheel

Francis turbine

Power (physics)

In the News (Sun 22 Nov 09)

Northern Trust

Marvin Harrison

Peter Chernin

Gary Locke

Match Play

Penelope Cruz

Mickey Rourke

AR Rahman

Danny Boyle

Hugh Jackman

	Hydropower - Wikipedia, the free encyclopedia
		Hydropower (or waterpower) harnesses the energy of moving or falling water.
		Prior to the widespread availability of commercial electricity, hydropower was used for milling, textile manufacture, and the operation of sawmills.
		In the 1830s, at the height of the canal-building era, hydropower was used to transport barge traffic up and down steep hills using the technology of inclined plane railroads.
	en.wikipedia.org /wiki/Hydropower (1594 words)

	EERE: Hydropower Energy (Site not responding. Last check: 2007-10-22)
		Hydropower (also called hydroelectric power) facilities in the United States can generate enough power to supply 28 million households with electricity, the equivalent of nearly 500 million barrels of oil.
		There are many types of turbines used for hydropower, and they are chosen based on their particular application and the height of standing water—referred to as "head"—available to drive them.
		Current hydropower technology, while essentially emission-free, can have undesirable environmental effects, such as fish injury and mortality from passage through turbines, as well as detrimental effects on the quality of downstream water.
	www.eere.energy.gov /RE/hydropower.html (571 words)

	[No title]
		Hydropower produces more than 90,000 megawatts of electricity annually, which is enough to meet the needs of 28.3 million consumers.
		And because hydropower is one of the lowest cost forms of energy, most Northwest residents have a significantly lower electric bill than residents in other parts of the country.
		Hydropower came of age at the turn of the century when many technological advances were being put in place to further tap the ability of the hydrologic cycle and rivers to help meet the needs of society.
	www.fwee.org /abhydro.html (1293 words)

	hydropower
		Hydropower is cheap, non-polluting, and many small facilities (less than 30 MW) are considered renewable energy sources.
		Although hydropower is non-polluting, construction of new facilities is highly controversial because of environmental and social impacts.
		Yet, new hydropower projects do not necessarily require construction since only 2,400 of 80,000 dams are used for this type of energy generation.
	cr.middlebury.edu /es/altenergylife/hydropower.htm (598 words)

	WEC Survey Of Energy Resources 2001 - Hydropower
		Although hydropower currently provides about one fifth of the world’s electricity supply, development of the world’s remaining technical potential could, by no means, cover the growth in future demand.
		Hydropower also avoids the substantial impact of particulate emissions (fly-ash, for example): the costs to human health in the form of respiratory disease is a very tangible impact of this problem.
		Although the majority of hydropower reservoirs are valued as environmental enhancements by the societies they serve, it is clear that not every hydro plant in the world is without environmental challenges.
	www.worldenergy.org /wec-geis/publications/reports/ser/hydro/hydro.asp (2726 words)

	State Energy Alternatives: Hydropower
		Hydropower is the kinetic energy of flowing water.
		Hydropower is the least expensive source of electricity in the United States, with typical efficiencies of 85%-92% during production.
		Hydropower is a clean, domestic, and renewable source of energy, and it does not have air pollution impacts.
	www.eere.energy.gov /states/alternatives/hydropower.cfm (920 words)

	EPA - Clean Energy - Electricity from Hydropower
		Hydropower is considered a renewable energy resource because it uses the Earth's water cycle to generate electricity.
		Hydropower is mostly dependent upon precipitation and elevation changes; high precipitation levels and large elevation changes are necessary to generate significant quantities of electricity.
		Hydropower often requires the use of dams, which can greatly affect the flow of rivers, altering ecosystems and affecting the wildlife and people who depend on those waters.
	www.epa.gov /cleanenergy/hydro.htm (719 words)

	Hydropower Technology
		Hydropower facilities capture the kinetic energy of falling water to generate electricity.
		Hydropower is currently the largest source of renewable power, generating approximately 10% of the electricity used in the United States.
		The mission of the U.S. Department of Energy's (DOE's) Hydropower Program is to develop, conduct, and coordinate research and development with industry and other Federal agencies to improve the technical, societal, and environmental benefits of hydropower.
	www.wppsef.org /hydropower.html (414 words)

	Nine Myths About Hydropower (Site not responding. Last check: 2007-10-22)
		Still, hydropower owners accept their stewardship role and recognize their use of public waterways demands collaboration with other river stakeholders and the general public.
		Hydropower IS a clean, renewable, reliable source of energy that can be developed to promote a higher standard of living while staying true to our environmental values.
		One recent study shows that in boreal climates, emissions from hydropower reservoirs, in the absolute worst scenario, are between 1/50th and 1/3 that of the cleanest fossil fuel source—combined cycle natural gas.
	www.hydro.org /Hydro_Facts/White_Papers_Reports/525.cfm (2402 words)

	HydroPower Energy (Site not responding. Last check: 2007-10-22)
		Hydropower played a major role in making the wonders of electricity a part of everyday life and helped spur industrial development.
		Hydropower in the U.S. With a capacity of more than 92,000 mega-watts— enough electricity to meet the energy needs of 28 million households— the U.S. is the world's leading hydropower producer.
		Hydropower supplies 9 percent of the country's electricity and accounts for 49 percent of all renewable energy used in the U.S. The nation's largest hydropower plant is the 7,600 megawatt Grand Coulee power station on the Columbia River in Washington State.
	www.ece.umr.edu /links/power/hydropow.htm (798 words)

	Hydropower
		Hydropower is also one of the least expensive sources of electricity in the United States.
		On a regional basis, hydropower is a source of 14% of the electricity used in the Rocky Mountain states and 63% of that used along the Pacific coast.
		Hydropower peaking may have to be replaced by gas turbines or coal-fired plants or conservation programs to encourage less use of energy.
	www.ornl.gov /ORNLReview/rev26-34/text/hydmain.html (5330 words)

	Hydro Energy \| Electricity \| Water \| River \| Dam \| Facts \| Renewable Resource (Site not responding. Last check: 2007-10-22)
		Hydropower is responsible for 10 percent of the states electricity.
		On average, the cost for hydropower operations and maintenance is only one-third the cost of a nuclear or a fossil fuel powered facility.
		Hydropower can be turned on almost immediately to meet the fast growing electricity demands.
	www.kidzworld.com /site/p1375.htm (354 words)

	Value to the Nation >Hydropower (Site not responding. Last check: 2007-10-22)
		Hydropower plants convert about 90 percent of the energy in falling water into electricity.
		Hydropower machinery is relatively simple, which makes it reliable and durable.
		Because they don't use fossil fuels Corps hydropower plants also are better for the environment than other sources of electrical power.
	www.corpsresults.us /hydro/default.htm (255 words)

	Hydropower Technologies (Site not responding. Last check: 2007-10-22)
		Hydropower is a clean, renewable and reliable energy source which converts kinetic energy from falling water into electricity, without consuming more water than is produced by nature.
		Hydropower facilities intercept the water on its downward path, converting its mechanical energy into electricity.
		In the U.S., hydropower is produced for an average of $7 per megawatt-hour (MWh) or about one-third the cost of using fossil or nuclear fuels and less than one-sixth the cost of using natural gas.
	www.sustainableenergy.org /resources/technologies/hydropower.htm (588 words)

	Iowa DNR Energy: Renewable Energy, Hydropower
		Hydropower — the largest-used renewable resource for electricity in Iowa — is an emissions-free, renewable, and reliable energy source.
		Hydropower in the United States avoids the burning of 121 million tons of coal, 27 million barrels of oil and 741 billion cubic feet of natural gas, combined.
		Many of Iowa’s hydropower plants were constructed on dams built in the 1800s or were constructed in the 1930s and 1940s as part of the Civilian Conservation Corps program.
	www.iowadnr.com /energy/renewable/hydro.html (435 words)

	Wind and Hydropower Technologies Program: Advantages and Disadvantages of Hydropower
		Hydropower relies on the water cycle, which is driven by the sun, thus it's a renewable power source.
		Hydropower is generally available as needed; engineers can control the flow of water through the turbines to produce electricity on demand.
		Hydropower plants can cause low dissolved oxygen levels in the water, a problem that is harmful to riparian (riverbank) habitats and is addressed using various aeration techniques, which oxygenate the water.
	www1.eere.energy.gov /windandhydro/hydro_ad.html (391 words)

	Hydropower Today
		Hydropower produces more than 95,000 megawatts of electricity annually, which is enough to meet the needs of about 35 million residential customers in California, New York, Ohio, Pennsylvania and Texas.
		Unlike plants that use coal (which is the countries primary resource to generate electricity), hydropower facilities can quickly increase and decrease the amount of electricity being generated.
		Hydropower is a resource that continues to balance itself within the needs and designs of the environment and people it serves.
	www.hydrofoundation.org /hydropower (547 words)

	Hydropower
		Hydropower in the United States can generate enough electricity for 28 million households, the equivalent of nearly 500 million barrels of oil - or approximately 7 percent of the Nation's electricity needs.
		Approximately 54 percent of the hydropower produced in the United States is licensed by the Federal Energy Regulatory Commission.
		Hydropower is not free of environmental impacts, and while it is an important source of energy, hydropower projects need to include environmentally sound measures that provide for the protection and enhancement of the Nation's natural resources.
	www.fws.gov /habitatconservation/hydropower.htm (383 words)

	Energy from Hydropower (Site not responding. Last check: 2007-10-22)
		Hydropower generated approximately seven percent of the nation's electricity in 2005.
		Hydropower produces electricity by running water from a reservoir through a hydraulic turbine that spins and drives the generator shaft. A hydroelectric plant produces between 100 kW to 500 MW of electricity, depending on size. Though the emissions produced from hydropower plants are negligible, dam construction to create water reservoirs carries other environmental impacts.
		The type of hydropower turbine selected for a project is based on the height of standing water and the flow, or volume of water, at the site.
	www.eei.org /industry_issues/energy_infrastructure/fuel_diversity/hydro (902 words)

	Electricity from Hydro
		Hydropower currently supplies 10 percent of the nation's electricity and 80 percent of the electricity now produced from renewable resources.
		It is the dams and powerhouse operations essential to hydropower plants that cause the primary environmental impacts.
		For hydropower projects with intakes located deep in the reservoir, water with low dissolved oxygen (DO) levels released to the river downstream may harm aquatic habitat in the river and contribute to other water quality problems.
	www.powerscorecard.org /tech_detail.cfm?resource_id=4 (1618 words)

	Facts About Hydropower - Waterpower - The World's Leading Renewable Energy Source
		In Wisconsin, hydropower accounts for 4.1% of the electric generating capacity and 4.4% of the total electricity generated.
		Hydropower is the most efficient way to generate electricity.
		A study of one medium-sized hydropower project in Wisconsin showed that the recreational value to residents and visitors exceeded $6.5 million annually.
	www.wvic.com /hydro-facts.htm (656 words)

	Hydropower
		Hydropower (from hydro meaning water) is energy that comes from the force of moving water.
		Hydropower is called a renewable energy source because it is replenished by snow and rainfall.
		Hydropower is also the only energy source that offers a whole range of added benefits.
	lsa.colorado.edu /essence/texts/hydropower.htm (1630 words)

	Other Renewables > Hydropower (Site not responding. Last check: 2007-10-22)
		Hydropower has been used for millennia in most countries of the world.
		Within the last 100 years, hydropower was applied to the conversion of its kinetic energy to electrical energy.
		Today, hydropower produces 24 percent of the world's electricity and supplies more than 1 billion people with power.
	www.azsolarcenter.com /otherre/hydro1.html (318 words)

Try your search on: Qwika (all wikis)