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2007-05-29 13:31:45 · 9 answers · asked by timmy t 1 in Science & Mathematics Engineering

Is there anyone out there smarter than a fifth grader? Water wheels don't require
dams, Rivers don't dry up,there is a national power grid you don't have to live next to a river, there is no limit to the number of water wheel turbines that can be set up along a river.

2007-05-30 11:40:53 · update #1

9 answers

Wind is everywhere. Water isn't.

2007-05-29 13:35:56 · answer #1 · answered by mr.perfesser 5 · 1 0

Many wind producing machines would be low fee for under constrained distant places. To lead them to low fee generally you will could use a device which will produce above 10kW, and particular 20kW. in case you prefer to work out who's offering a 20kw wind device, google 'wind 20kw' you will locate that lots of those options would be from China, and chinese language machines are a reliable purchase. yet some distributors are to no longer be depended on. know which you have got the device interior the trailer once you're making the cost. chinese language wind machines are outfitted with the theory you will no longer have a breaker interior the circuit such that the blade would spin with out resistance. you will sell off extra potential to a water heater, yet no longer permit the blades only spin.

2016-12-18 08:10:52 · answer #2 · answered by ? 4 · 0 0

In addition to what the others have said, you need a substantial drop in the level of the water (called hydrostatic head) in order to generate significant power.

Of course, with wind power, you need pretty substantial winds, a high percentage of the time. There's no free lunch

2007-05-29 13:59:18 · answer #3 · answered by dogsafire 7 · 0 0

The water wheel requires water & the use of a "fall." Basically you need to use gravity to make water work... a good source of energy if you can get it. However, you are more likely to find wind resources than water resources.
Chuckle, if you have constant water & a sharp slope or drop off, you have an energy gold mine.
Ed

2007-05-29 18:56:18 · answer #4 · answered by Anonymous · 0 1

I think most of the sites that can be used to generate hydroelectric power are already being used. Wind is still under used.

2007-05-29 13:35:40 · answer #5 · answered by jxt299 7 · 2 0

Furthermore, while most of the dam sites are in use, older ones and newer ones block the natural flow of the stream. In some areas, they're tearing them out - because they affect the stream ecology and block migrations of populations of fish (particularly salmon and shad).

2007-05-29 15:57:10 · answer #6 · answered by Doug B 3 · 0 0

In allot of places water is scarce especially in a big enough quantity to damn up .

2007-05-29 13:38:12 · answer #7 · answered by Anonymous · 1 0

Sometimes in a drought there is no water.. besides if the wind is available, why not use it???

2007-05-29 13:37:19 · answer #8 · answered by Anonymous · 1 0

Duh, you need a source of water. Wind generators can be used in deserts, mountains, prairie, etc. where there is no water.

2007-05-29 13:40:50 · answer #9 · answered by knittinmama 7 · 1 0

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