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Topic: Hydroelectric power

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In the News (Tue 18 Sep 18)

  Encyclopedia: Hydroelectric power
Hydroelectricity, hydroelectric power, is a form of hydropower (the use of energy released by water falling, flowing downhill, moving tidally, or moving in some other way) to produce electricity.
Hydroelectric power is usually generated at dams or other places where water descends from a height, or coasts with a large tidal swing (such as the Bay of Fundy).
Hydroelectricity is a renewable energy source, since the water that flows in rivers has come from precipitation such as rain or snow, and tides are driven by the rotation of the earth.
www.nationmaster.com /encyclopedia/Hydroelectric-power   (743 words)

 Hydroelectricity - Wikipedia, the free encyclopedia
Most hydroelectric power comes from the potential energy of dammed water driving a water turbine and generator.
Hydroelectric plants are immune to price increases for fossil fuels such as oil, natural gas or coal, and do not require imported fuel.
Hydroelectric plants generally have small to negligible emissions of carbon dioxide and methane due to reservoir emissions, and emit no sulfur dioxide, nitrogen oxides, dust, or other pollutants associated with combustion.
en.wikipedia.org /wiki/Hydroelectric_power   (1482 words)

 hydroelectric power - Hutchinson encyclopedia article about hydroelectric power   (Site not responding. Last check: 2007-11-07)
Hydroelectric power is produced by this dam at Lochan Shira in west Scotland.
A tidal power station exploits the rise and fall of the tides.
Work on the world's largest hydroelectric project, the Three Gorges Dam on the Chang Jiang River in China, was officially inaugurated in 1994 (due to be completed in 2009).
encyclopedia.farlex.com /Hydroelectric+power   (472 words)

 VEÖ - Verband der Elektrizitätsunternehmen Österreichs: Importance of Hydroelectric Power
As a result, hydroelectric power is not only the most important domestic energy source, but the high percentage of production from hydroelectric power is a unique value throughout the EU, and also helps Austria to garner a top European position in terms of environmentally-friendly electricity generation.
But electricity derived from hydroelectric power is not only environmentally-friendly, but is also generated on a sustainable basis and is also an essential component of peak-current electricity generation.
Although the importance of hydroelectric power for the domestic production of electricity is undisputed, the implementation of the water framework directive in Austria could lead to a reduction of electricity generation ranging from five to 15 percent.
www.veoe.at /index.php?id=43&L=2   (376 words)

 hydroelectric power - Hutchinson encyclopedia article about hydroelectric power   (Site not responding. Last check: 2007-11-07)
Hydroelectric power provides about one-fifth of the world's electricity, supplying more than a billion people.
Hydroelectricity is a non-polluting, renewable energy resource, produced from water that can be recycled.
However, they are very expensive to build and can only be built in a small number of places depending upon relief, geology, river regime, climate, and demand – hydroelectric power stations are often associated with aluminium smelters which use up excess energy.
encyclopedia.farlex.com /hydroelectric%20power   (472 words)

 TVA: Hydroelectric Power   (Site not responding. Last check: 2007-11-07)
Of all the renewable power sources, it’s the most reliable, efficient, and economical.
Water is needed to run a hydroelectric generating unit.
It’s held in a reservoir or lake behind the dam, and the force of the water being released from the reservoir through the dam spins the blades of a turbine.
www.tva.gov /power/hydro.htm   (234 words)

 Hydroelectric Power Generation, Osa Water Works, Costa Rica
Large-scale hydroelectric power generation facilities have, since the early part of the twentieth century, been technology staples of industrialized society, providing power grids across all the continents with the energy to move industry and provide centers of population with domestic and commercial electricity.
Hydroelectric power generation is normally favorable economically over solar power generation as well, presuming the resources are available for a hydro installation.
Finally, local hydroelectric power generation reduces societal electrical demands, however slightly, thereby reducing, however infinitesimally, our dependence upon nuclear power plants and coal- and oil-burning power plants, all of which are at the forefront of global environmental concerns.
www.osawaterworks.com /hydroelectric.htm   (1083 words)

 Hydroelectric power: the effects of damming -
Hydroelectric power plants convert the kinetic energy contained in falling water into electricity.
Fish that transverse downstream are often killed in the turbines of hydroelectric power stations.
The Niagara Power Project (left) is one of the world's largest hydroelectric power plants, located 4 miles from Niagara Falls.
www.oceansatlas.org /cds_static/en/hydroelectric_power_effects_damming__en_17981_all_1.html   (323 words)

 Hydroelectricity - Wikipedia, the free encyclopedia
Less common variations make use of water's kinetic energy or undammed sources such as tidal power.
Concerns have been raised by environmentalists that large hydroelectric projects might be disruptive to surrounding aquatic ecosystems.
Hydroelectricity - Water potential powered systems, focusing on non-impactive small hydro.
en.wikipedia.org /wiki/Hydroelectric   (1482 words)

 The Energy Planet :: Hydroelectric Power :: English   (Site not responding. Last check: 2007-11-07)
Modern hydroelectric power plants are much more complex than the original ancient mills, but the same concept that once ground corn is now used to supply electricity to Las Vegas.
The second main downside of hydroelectric power plants is the fact that the dam, which is essential to the plant, destroys many habitats.
Hydroelectric power has many benefits that outweigh the downsides, but improvements are still needed.
library.thinkquest.org /C004471/tep/en/traditional_energy/hydroelectric_power.html   (728 words)

 Dynamic Energy Transformations: Hydroelectric Power Plants
A hydroelectric power plant harnesses the energy found in moving or still water and converts it into electricity.
This energy powers the generators, which are very important parts of the hydroelectric power plant; they convert the energy of water into electricity.
Hydroelectric power plants use the resources that are readily available to us and do not create pollution.
www.angelfire.com /magic/sciencewiz   (1022 words)

 Hydroelectric power   (Site not responding. Last check: 2007-11-07)
Hydroelectricity, or hydroelectric power, is a form of hydropower that uses the energy released as a result of water falling, or flowing downhill or by wave-differences, under the influence of gravity to produce electricity.Specifically, the mechanical energy of the flowing or waving water isconverted to electrical energy by a Water turbine and generator.
Hydroelectric power is usually generated at dams or other places where water descends from a height like coasts with a high tides difference.Hydroelectricity is a renewable energy source, since the water thatflows in rivers has come from precipitation such as rain or snow and waves in the sea, or even ocean, are moon related.
Hydroelectric power, using the potential energy of rivers, now supplies 19% of world electricity.
www.therfcc.org /hydroelectric-power-24411.html   (440 words)

 Hydrolelectic water use in the United States in 1990   (Site not responding. Last check: 2007-11-07)
Water used for hydroelectric power generation is classified as an instream use and refers to the water used in the generation of electricity at plants where the turbine generators are driven by falling water.
Estimates of water used for hydroelectric power generation may vary because of the way individual estimates are made of the quantities of water passed through the plants.
Although the quantity of water evaporated in the actual generation of hydroelectric power (consumptive use) is very small, considerable depletion of the available water supply for hydroelectric power generation occurs as an indirect result of evaporation from reservoirs and repeated reuse of water within a pumped-storage power facility.
water.usgs.gov /watuse/wuhy.html   (483 words)

 WWW Irkutsk: History of construction of Irkutsk Hydroelectric Power Station   (Site not responding. Last check: 2007-11-07)
The project required constructing a dam more than two kilometers in length, including a Hydroelectric Power Station building that was was 240 meters in length, and within which were mounted eight units with a total generating capacity of 660 thousand watts.
The Hydroelectric Power Station had to be constructed in a seismic zone, so gravel and sand were chosen as building materials for the dam.
It was necessary to build water channels to pass water through the Power Station building, to block the Angara, to prepare ditches for water basins from the dam up to Baikal, to relocate the people living in the area to be flooded, and to demolish all the structures.
www.icc.ru /fed/ges.html   (559 words)

 Hydroelectric Power   (Site not responding. Last check: 2007-11-07)
Hydro power is a major source of California's and the nation's electricity.
Hydroelectric power, a renewable resource, is generated when hydraulic turbines are turned by the force of moving water as it flows through a turbine.
There are two main categories of hydroelectric power generation: conventional methods, which produce electricity via water flow in one direction; and pumped storage methods, which are both producers and consumers of electricity.
www.consumerenergycenter.org /renewable/basics/hydro.html   (659 words)

 Hydroelectric Power
The economic benefit of hydroelectric power depends directly on the source of flowing water and the topography of the area where hydroelectric turbines will be installed.
The water used to generate power is returned to the natural environment after power generation, and, is returned to the environment at the same temperature before it was used to generate power.
Moreover, because hydroelectric power does not use coal or gas, there are none of the emissions that are associated with gas and coal systems.
www.apgc.net /services/hydro.html   (191 words)

 MDC - The Environment
From water wheels used by the ancient Greeks to today's most modern hydroelectric power plants, the idea has always been the same: use the incredible power of moving water to produce energy.
Hydroelectric turbines are equipped with a series of blades (or buckets).
The West Branch of the Farmington River is the site of two MDC hydroelectric power facilities: the Goodwin Hydroelectric Power Plant in West Hartland, Connecticut and the Colebrook River Hydroelectric Power Plant in Colebrook, Connecticut.
www.themdc.com /hydropower.htm   (410 words)

 ALTERNATIVE ENERGY BLOG - Solar-Energy-Wind-Power.com: Alternative Energy Japan - Micro & Mini Hydroelectric
Japan's Daily Yomiuri reports that small-scale hydroelectric power generation is quietly becoming a big thing, with small output generators being established near mountain streams or on public water supplies.
Small-scale hydroelectric power plants have long been regarded as suitable for producing electricity in mountainous areas, but now they are increasingly used in cities as well.
The electricity generated on the site is sold to Tokyo Electric Power Co. Since the system is installed on a pipe used for water for domestic use--water of fairly reliable quality--it generates electricity and is virtually maintenance free.
alt-e.blogspot.com /2004/09/alternative-energy-japan-micro-mini.html   (481 words)

 'New Deal' For UK Hydro Power
It is expected that the deal will result in the refurbishment of around 30 hydroelectric power stations and company investment of around £250 million into hydroelectric power projects.
The main driver for this will be the renewables obligation, which means it is critical for the hydroelectric sector that the mechanism is encompassed.
"This is a major signal today that hydroelectric power still has a huge part to play in the Government's strategy for renewable energy," said Wilson.
www.greenconsumerguide.com /news20.html   (489 words)

 First Commercial Hydroelectric Power Plant -- Appleton, WI
The first hydroelectric power plant was built in Appleton on the Fox River.
Hydroelectric power plants make electricity by using the power of running water.
It also powered a private home, which was owned by the man who owned one of the paper mills.
www.doj.state.wi.us /kidspage/fun_facts/hydro.htm   (164 words)

 Nearctica - Conservation - U.S. Code - Chapter 47
Every applicant for a license for a small hydroelectric power project receiving loans pursuant to this section shall furnish the Secretary with such information as the Secretary may require regarding equipment and services proposed to be used in the design, construction, and operation of such project.
In making loans for small hydroelectric power projects under this section, the Secretary shall encourage joint participation, to the extent permitted by law, by applicants eligible to receive loans under this section with respect to the same project.
The Commission shall encourage applicants for licenses for small hydroelectric power projects to make use of public funds and other assistance for the design and construction of fish and wildlife facilities which may be required in connection with any development of such project.
www.nearctica.com /conserve/uslaw/chap40s/chap47.htm   (1348 words)

 TVA Kids: Hydroelectric Power
Hydroelectric power, or hydroelectricity, is generated by the force of falling water.
That means that TVA’s hydroelectric power plants are able provide electricity at a reasonable cost to families, schools, farms, factories, and businesses.
TVA uses water to make electricity at 29 hydroelectric dams and one pumped-storage power plant (at Raccoon Mountain near Chattanooga, Tennessee).
www.tvakids.com /electricity/hydro.htm   (282 words)

 hydro-latin-cr   (Site not responding. Last check: 2007-11-07)
Sandillal is the last of three hydroelectric plants in the scheme.
The Toro hydroelectric complex consists of two plants built in the Rio Toro basin cascade in Valverde Vega canton in Alajuela province.
Studies on hydroelectric development in the area were completed from 1981 to 1983 and construction of the project began in 1990.
www.industcards.com /hydro-latin-cr.htm   (732 words)

 girising   (Site not responding. Last check: 2007-11-07)
The 55 hydroelectric power plants associated with dams or canals-rivers constructed by DSI have total installed capacity of 10 573 MW, and annual average energy of 36 979 GWh.
ndicate that with the construction of 805 dams and 485 hydroelectric power plants (including the ones under construction, planning and in operation) it will be possible to regulate our rivers and make maximum use of them.
In case the above dams and hydroelectric power plants are completed, it will be possible to produce yearly 123,04 TWh of energy with an installed capacity of 34 740 MW and besides, great benefits will be obtained from irrigation, flood control and domestic and industrial use of water.
www.dsi.gov.tr /tricold/girising.htm   (285 words)

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