what is the advantages of hydroelectric power?
349291
Most forms of electricity generation involve heating water (burning fossil fuel, solar power, etc) to form steam that turns a turbine.  The excess heat releases a large amount of wasted energy, energy not used to produce electricity.  Hydroelectric power, on the other hand, uses only moving (cool) water to push the turbine, so no heat energy is wasted and no fuel is consumed.  The main problem with hydroelectric power is that rivers end up dammed to collect enough water to move the turbines; dams alter the natural hydrology of their environment by flooding low lying areas, slowing waterflow, and impeeding animal migration.
801669
There is a lot of possibilities starting from the simplest one which is wind generator.  More complicated would be water generation where a usually dam is build and potential energy of the water accumulated behind the dam moves water through turbines and generates power. Some other may include thermal energy of the earth. If you drill deep enough you will get to the earth crust zone where temperature is high to produce steam and this steam is converted (generated) into the electric power. Ocean waves are also source to generate energy.
266059
Solar power both thermal and photovoltaic, hydroelectric and hydromechanical, wind electric generators and wind mill mechanical drives. Alternative fuels; Methane, methanol, ethanol,Hydrogen.\n\nYou can pick up a photovoltaic cell at radio shack cheap.
1035625
The name is synonymous with power. Niagara Falls. The natural phenomenon from time immemorial. The myriad tons of water crashing over the solid limestone cliff, with a force that reduces the limestone to boulders, the boulders to rubble, the rubble to a silt the unabated torrent seizes and carries off down the canyon it has formed and shaped through the eons in this same violent, patient manner. The perpetual thunder. The constant cloud of mist from the plummeting waters.\n\nAnd in the present time, the man-made complement to the natural marvel. The gargantuan electrical power production facilities--the largest in the world--harnessing the prodigious elemental forces.\n\nBut five years before start-up of the first large-scale power project at the falls, the method of production and distribution of the power was still undecided. The huge project was to include transmission to Buffalo. Electricity--a novel technology at the time--was only one suggestion. The other methods under consideration were pneumatic, hydraulic, and good old-fashioned mechanical (compressed-air or water mains or steel cables on posts and pulleys the 22-mile distance from Niagara Falls to Buffalo).\n\nThe new technology won out in the end. By 1895 the Niagara Falls Power Company began generating alternating current (AC) from three 5000-horsepower generators. The next year electricity was successfully transmitted to Buffalo. The Niagara Falls project ushered in the second phase of the Industrial Revolution and shaped and determined the way power would be produced and delivered from then on.\n\nBut in 1890 George Westinghouse recommended that the best way to transport Niagara Falls power to Buffalo would be by compressed air. Westinghouse was likely to know. As the inventor of the air brake, he was the acknowledged expert on pneumatic systems. And of late he had turned his attention to electricity. In 1886 he had organized the Westinghouse Electric Company. By 1890, the company was operating 300 central generating stations.\n\nThe Westinghouse organization predominantly utilized AC, and Westinghouse was the champion of AC in the so-called War of the Currents then raging between proponents of AC and advocates of continuous or direct current (DC). But the problem with AC was that it lacked a practical and efficient motor. The AC systems then in operation were primarily lighting systems. In 1888, Nikola Tesla had patented an idea for an AC motor, and Westinghouse promptly bought up the patents and was working on developing the motor. But the motor wasn't ready yet. Niagara power--on the scale that it would have to be developed for the project to make sense--would be mainly for industry. For power more than light.\n\nThe fierce and stubborn champion of DC was Thomas Edison. Edison had been in the electrical business since the late 1870s, and within a decade was operating in the neighborhood of 1500 generating stations, including isolated plants associated with individual factories or other commercial installations, as well as central stations, supplying electricity to the public at large. The DC systems were basically lighting systems, too, but there was a DC motor for street-rail traction, and DC motors were beginning to be used for various manufacturing purposes. (The motors were made by the Sprague Electric Railway and Motor Company. Frank J. Sprague, a U.S. Naval Academy graduate, invented the DC motor. After naval service, he worked for the Edison Company for a while, but because Edison wasn't much interested in motors--or industrial applications of electricity in general--Sprague quit to form his own company in 1884. In the early years, when an Edison installation required a motor, the Sprague company supplied it.)\n\nBut the problem with DC was transmission. Edison, when asked by cable--he was in Europe at the time--about the prospect of transmitting large-scale power from Niagara Falls to Buffalo, wired back: "No difficulty transferring unlim
669858
Electric trolling motors have come a long way.  With the new style batteries, you can fish for most of a day without loosing power.  I'm a big fan and think they are worth every penny (I used to run a trolling plate, this is MUCH better!).
808544
Man did u luck out running into me, go to www.sciplus.com "American science and surplus", all sorts of abandon science projects, factory over runs, cancelled government orders, motors, solar cells, weird stuff in the science dept, it's a mad doctors dream come true, CHEAP TOO ! check it out, you'll find lots of "COOL" stuff, that has many uses ! I did a hydro-electric demonstration of power application, that was so small, I could do it in a lab sink, E-mail me if you want an "A", it's an easy experiment, inexpensive, looks very sophisticated, yet simply displays the hydro-electric properties of producing low cost, hydro-electric power, using no battery's or electric for assistance, just water, so it's completely SAFE ! works on displaying milli-amps of D.C. power, yet you are still producing (at a very low voltage) power.
1129308
solar energy is an exotic source of energy in Canada.  the cost of generating energy in this manner has limited it to people who want to supplement their own energy needs by installing solar panels on their roof to help in heating their water or cooling or heating their home. there are much more cost-effective ways to generate electricity such as building dams to generate hydro-electric power, or wind turbines to do the same. the high start up costs and the long time that a solar energy cell takes to pay-off the investment is the main reason it has not become more widespread. until there is a breakthrough in the production of more efficient and economical solar panels, it is likely that the situation will remain the same.
76108
Tidal power is a means of electricity generation achieved by capturing the energy contained in moving water mass due to tides. Two types of tidal energy can be extracted: kinetic energy of currents due the tides and potential energy from the difference in height (or head) between high and low tides.\nThe extraction of potential energy involves building a barrage. The barrage traps a water level inside a basin. Head is created when the water level outside of the basin changes relative to the water level inside. The head is used to drive turbines. In any design this leads to a decrease of tidal range inside the basin, implying a reduced transfer of water between the basin and the sea. This reduced transfer of water accounts for the energy produced by the scheme.\n\nTidal power is classified as a renewable energy source, because tides are caused by the orbital mechanics of the solar system and are considered inexhaustible within a human timeframe. The root source of the energy comes from the slow deceleration orbit of the moon around the Earth, and the deceleration of the Earth's rotation. Tidal power has great potential for future power and electricity generation because of the total amount of energy contained in this rotation. Tidal power is reliably predictable (unlike wind energy and solar power).\n\nThe efficiency of tidal power generation largely depends on the amplitude of the tidal swell, which can be up to 10 m (33 ft) where the periodic tidal waves funnel into rivers and fjords. Amplitudes of up to 17 m (56 ft) occur for example in the Bay of Fundy, where tidal resonance amplifies the tidal waves.\n\nAs with wind power, selection of location is critical for a tidal power generator. The potential energy contained in a volume of water is \n\nE = xMg\nwhere x is the height of the tide, M is the mass of water and g is the acceleration due to gravity. Therefore, a tidal energy generator must be placed in a location with very high-amplitude tides. Suitable locations are found in the former USSR, USA, Canada, Australia, Korea, the UK and other countries (see below).\nSeveral smaller tidal power plants have recently started generating electricity in Norway. They all exploit the strong periodic tidal currents in narrow fjords using sub-surface water turbines.____For more information go to the site below.
812487
Today, the largest producesr of eletricity in the world is ITAIPU.\n\nThe Itaipu project in Brazzil is currently the world's largest hydroelectric dam \n\nThe China's Three Gorges Dam will be the world's largest hydropower project. \n\nThe totals. amount of concrete totals. million cubic meters twice that of the It aipu project in Brazil currently the world's largest hydroelectric dam.
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www.energyquest.ca.gov/story/chapter12.html\nen.wikipedia.org/wiki/Hydropower \nwww.wvic.com/hydro-facts.htm\nsolstice.crest.org/renewables/ re-kiosk/hydro
118728
it can be - hydroelectric dams produce very cheaply, but a 15KW gas generator is expensive.
909438
Advantages\n- Solar energy is renewable (i.e. it will not deplete)\n- Solar energy is  clean (it does not give out pollutants)\n- Solar energy is readily available (there is sunshine quite often)\n\nDisadvantages\n- Solar energy is difficult to harness (technology is kind of advanced now, but still, the energy absorbed is quite little)\n- Solar energy cannot be stored (if we rely totally on solar energy and we can't store it, what are we to do on a dark day or at night?)
968546
advantages:\nyou will get to enjoy the best weather of the place.\nall tourist attractions will be open.\ndisadvantages:\nthe hotels in the place will charge you the maximum.\nthere will be plenty of rush in the place because tourists from other parts of the world would also like to visit in the same period.
137507
The benefits of building dams are beginning to be questioned by many people. Dams have provided great benefits of many kinds. As water reservoirs they are often essential to the survival of nearby communities. In areas where there is little rainfall like Arizona large dams are the main source of water for both large and small cities. The water held by these dams is coming from hundreds of miles upstream. In other areas dams were built for flood control purposes and have allowed farmers and communities to live better lives because large floods have been prevented. Most of these dams also provide an economic benefit, in the form of recreation, fishing, and tourism to the area. In other areas the dams have been built expressly to provide electricity, like in the Pacific Northwest. That area generates most of its electricity from dams and even supplies electricity to other states. Dams have allowed cities like Las Vegas, Phoenix, San Francisco, and even Los Angeles to have power and water supply. \n\nOn the negative side, river habitats are some of the most productive and diverse in most environments. Animals and plants rely on the river for water and sustenance. Flooding eliminates these habitats and often dramatically alters the habitat of the river downstream from the dam. There are now periodic artificial floods allowed in the Grand Canyon to help restore natural environments in the canyon. Another example of the negative effect of dams on the Colorado is that there is hardly any water left by the time the Colorado River reaches its delta area in Mexico. This once productive habitat is now dying and even fish populations in the Gulf of California have likely been affected. \n\nThere are economic impacts caused by dams as well. If Mexico had populated the Colorado River delta area significantly before the water was diverted to US cities there would be significant economic impact there. As it is, the area will probably never develop economically. Other impacts have been on migratory species like salmon, and the inability of salmon to return upstream to reproduce has reduced the ability of fisherman to earn a living fishing for salmon. \n\nYet another negative impact of dams is not well appreciated by most who oppose dams. Dams will catch all the sediment that is carried by a river, and when the river gets to the ocean it will no longer be carrying its original sediment load. Coastal areas in Texas no longer have a steady supply of sand to the beaches that were once supplied by the many rivers along the Texas coast. Those beaches are eroding and houses near the beach are being destroyed partially due to the lack of sand supply to the beaches. Millions of dollars are spent trying to save coastal areas that might not be in danger if not for dams on rivers preventing the supply of new beach sand. \n\nThe answer is not an easy decision. There have been many benefits to dams, but many of the disadvantages are slowly becoming clear.
637810
Well there are three of them in the US so we already use nuclear power. But nuclear can only be cost effective in highly populated areas. And normally iot is still safer and cheaper to use a petrolium based power.. Although we do have another option hydropower... (Hoover dam)
589703
Tidal power is a means of electricity generation achieved by capturing the energy contained in moving water mass due to tides. Two types of tidal energy can be extracted: kinetic energy of currents between ebbing and surging tides and potential energy from the difference in height (or head) between high and low tides. The former method - generating energy from tidal currents - is considered much more feasible today than building ocean-based dams or barrages, and many coastal sites worldwide are being examined for their suitability to produce tidal (current) energy.
925474
Advantage - technology makes our lives easier\n\nDisadvantage - Uses up natural resources at an unsustainable rate, degrades the natural environment