Hydroelectric how it works

Hydroelectric advantages and disadvantages wiki page

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everyone needs to contribute to the extranormal page, so noah can start editing it.
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Lily Heeler
Is Hydroelectricity renewable?

Noah Jones
Why is it better than the others?

Courtney P

*Maggie J
Is your source of energy one that is used to generate electricity in Missouri? If so, where and how is it produced? If not, why not? Where is the closest location to Missouri it is produced?

Michael Green
How efficient is Hydroelectricity?

Trent Spinner

Tess Swope

Briar Butner
How does Hydroelectricity work?

Codey D
why don't we use it

Kyle Vest

*Max Stoll

This Energy Source

Is your source of energy one that is used to generate electricity in Missouri? If so, where and how is it produced? If not, why not? Where is the closest location to Missouri it is produced?
Canada is the leading producer of hydroelectricity. The United States is right under that.
I got this resource from department of natural resources of Missouri.It is current, it is reliable, it has authority, and it has purpose.
This picture is part of the public domain.

http://www.youtube.com/embed/fvYaCtjpMvk - link for how hydro electricity is created.
http://youtu.be/9RBXEIKU4aA - HUGE hydro electricity dam
http://www.youtube.com/watch?v=yIBgBHqDAZM- Largest dam in Turkey and good explanation. WARNING very long.

http://ga.water.usgs.gov/edu/wuhy.html this is a good website for back-round info.
http://www.eia.gov/kids/energy.cfm?page=hydropower_home-basics this link has another link to information on the hover dam
this website tells you about hydroelectricity and has links to go to different websites for info

Frequently asked question: Is hydroelectricity better than solar power?
They are both a renewable resource, but hydroelectricity is a lot more reliable and efficient. Solar power dose not give a lot of energy and it will probably not last through the night. hydro electricity will last a long time, gets energy very fast, and will last at night.

external image hydrobycountry.gif

Source: Energy Information Administration (EIA):


What are BTU's?

Web definitions
* (btu) British thermal unit: a unit of heat equal to the amount of heat required to raise one pound of water one degree Fahrenheit at one atmosphere pressure; equivalent to 251.997 calories

I thought this was a good and short video for Hydroelectric power!
<iframe width="420" height="315" src="http://www.youtube.com/embed/PcOGmI9gz3A" frameborder="0" allowfullscreen></iframe>

http://zperry.hubpages.com/hub/advantages-hydroelectric-power This is the benefits of hydroelectiric energy

<iframe width="420" height="315" src="http://www.youtube.com/embed/PcOGmI9gz3A" frameborder="0" allowfullscreen></iframe>
it has a lot of good information about what it is and how it works and other stuff about hydroelectric energy
its a video bout hydroelectric energy
gives a lot of facts about hydroelectric energy
its basic stuff you need to know about hydroelectric energyThis is a picture of a genarator getting power from hydro energy

Discussion Question: What are some intresting facts about hydro energy

Once a dam or hydroelectric station is put in place it is very self-sufficient.
Hydropower, once its built, is easy to use, cheep and effective.
The dam may be a target for terrorist who want to harm the area or civilization


Documentary of hydro energy

Hydroelectric Dam.....I got this picture from inforbarrel.com

I got this from www.infobarrel.com

, hydro power comes using the movement of water to create energy. Hydroelectricity is most commonly produced in a dam which generates electric power from the mechanical energy that is taken from the water.

Read more: http://www.infobarrel.com/Renewable_Energy_How_Hydroelectric_Power_Works#ixzz1kxwAMgRi
Construction of a dam
The first step in constructing a dam is to choose an appropriate site for the dam. Dams are usually built where there is a natural narrowing of a river in a deep valley. This way the walls of the valley can be built between to create a dam. The next step is to divert the river away from this area so that the dam can be constructed. This is usually done using a tunnel or channel. A tunnel or channel is excavated by the building team diverting the water around the area where the new dam will be.
The river bed is then stripped of soil, gravel and sand that are not needed in the construction of the dam. The soft unsuitable material is taken away and the foundations of the dam are laid using concrete. Holes are then drilled, sometimes as deep as the dam will be high, and filled with concrete to provide strong foundations for the dam, this is called grouting. Once the foundation has been built the dam is then built on top. All dams have a water proof core that is often made of clay or other highly dense materials. Once the main dam has been constructed, other parts of the dam are worked on such as the spillway. The river is then diverted back into it original course and the dam tested for leakage and other issues.
link to site: http://wanttoknowit.com/how-are-dams-built/

The amount of electricity a hydropower plant produces depends on two factors:
  1. How Far the Water Falls. The farther the water falls, the more power it has. Generally, the distance that the water falls depends on the size of the dam. The higher the dam, the farther the water falls and the more power it has. Scientists would say that the power of falling water is "directly proportional" to the distance it falls. In other words, water falling twice as far has twice as much energy.
  2. Amount of Water Falling. More water falling through the turbine will produce more power. The amount of water available depends on the amount of water flowing down the river. Bigger rivers have more flowing water and can produce more energy. Power is also "directly proportional" to river flow. A river with twice the amount of flowing water as another river can produce twice as much energy.

http://new.wvic.com/index.php?option=com_content&task=view&id=8&Itemid=45 link to site

Most of the small and medium-sized dams in this country were built to last just 50 years. (Nowadays, from what structural engineers tell me, the typical design life is more like 100 years.) According to the U.S. Army Corps of Engineers, about 30 percent of the more than 76,000 dams in the United States are older than 50 years--and by 2020, that number will increase to more than 80 percent. That's a lot of old dams, some of which hold back not just water but toxic sediments from early industrial operations. Once they start to go, a lot of people are going to be in deep . . . OK, maybe not raw sewage. But some mighty unpleasant stuff.

http://www.straightdope.com/columns/read/2666/how-long-are-dams-like-hoover-dam-engineered-to-last: link to site
external image hydroplant-animate.gif