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Hydroelectricity

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by

Alexandrea Wood

on 12 January 2015

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Transcript of Hydroelectricity



Water
in a
reservoir
is moved through the
intake
.
The
intake
controls how much water it intakes.
The water then flows through the
penstock
.
At the end of the
penstock
is a
turbine
.
As the water moves, the
turbine
turns, powering a
generator
.
The
generator
is connected to
powerlines
that carry the power.
The water used then returns to a river
How does it work?
Pros:
No pollution
control flooding
regulate water supply
clean and renewable
efficient
able to start quickly and make rapid adjustments
able to reuse the same power
it's not a rare machine to use
cheaper way to produce energy

amount contributed to greenhouse gasses is insignificant (Currie 40).
Cheap, clean, and reliable
Labor cost is inexpensive
Environmentally friendly
Could be possible ocean generated power
Able to expand worldwide ( every country has a river that can be tapped into.
Cons:
What can be done to expand its use?
Create more dams! Since the water is stored in a reservoir and goes through a turbine in the dam to create electricity, just create more dams to generate more electricity. (Environmentally friendly)

Works Cited:
Hydroelectricity
By: Kayla Bumalay, Valerie Garcia, Arely Irra, Abby Keys, Alexandrea Wood
Fun Facts:
Damming rivers disrupt and possibly destroy natural resources and wildlife
Hydroelectric water plants can cause low dissolved oxygen levels in the water
harmful to river habitats
Weight of dams can cause earthquakes
Dams are extremely expensive to build
No substitute for coal, oil & natural gas
Construction of damns can lead to flooding and relocation of houses and towns
Large amounts of rotting vegetation can produce methane, a greenhouse gas.
Water is a renewable source: the amount of water never changes
More efficient than fossil-fuel and nuclear power
Has been used since the time of the Greeks
"...hydropower contributes to climate change, destroys ecosystems, and harms wildlife" (Currie 49).
Hydroelectricity is currently being used all around the world

1/5
of the world's electricity is from hydroelectric power

Many countries have rivers for hydroelectric power (Water to run the power plant is provided free by nature)

Dams are built in a large river with a drop in elevation

Dams adapt to the amount of power needed


Fun Facts
The Itaipu Dam in Paraguay/Brazil cost $18 Billion to build in 1990
FUN FACTS!!!!!!!!
Arely's Work Cited:
Kayla's Works Cited:
Valerie's Work Cited:
Alex's Works Cited:
Abby's Works Cited:
Currie, Stephan.
What is the Future of Hydropower?
San Diego: ReferencePoint Press, Inc., 2013. Print.
"Hydroelectric Power: How It Work."
Hydroelectric Power: How It Works, USGS Water- Science School.
N.p., n.d. Web. 9 Dec 2014.
"Hydroelectric Power: How it Works." Hydroelectric Power: How it works. USGS Water. Science School.N.p,n.d. Web. 9 Dec. 2014.
"Hydroelectric Power." RenewableEnergy, , Benefits and Cons of Hydro Energy. Alternative Energy, n.d. Web.17 Dec. 2014
Hydropower. Salem, Or.: Legislative Committee Services, 2011. Need.org.The NEED Project. Web. 11 Dec. 2014.
Owen Ruth. Energy from Oceans and moving water. New York: The Rosen Publishing Group Inc, 2013. Print.
"Hydropower Facts, Hydropower Information- National Geographic."
National Geographic.
N.p., n.d. WEb. 10 Dec 2014.
In 2004, the world's top producers were China, Canada, Brazil, United States & Russia

Hydro power provides 2/3's of the region's electricity in the pacific northwest

The Three Gorges Dam in China is one of the biggest dams made
Where is it currently being used and how is it working?

(Question 3)
(Question 4)
FUN FACTS
The Hoover Dam (in Nevada) is a hydroelectric dam.
"The World's Largest Generator of Renewable Clean Energy."
10 Reasons for Promoting the Hydroelectricty.
N.p., n.d. Web. 11 Dec 2014.
all images are used from Prezi
disclaimer:
In Washington State: 70% of electricity is from hydroelectric facilities
Small-scale & micro-scale hydroelectric plants that can provide energy and small communities and farms are likely to become more common.
All images from Prezi
U.S can generate enough power to supply electricity to 28 million homes (equivalent to 500 million barrels of oil)
Niagara Falls is a hydro power plant
After the water goes through the turbines, it is released back into the river, uncontaminated.
Canada is the number one producer of hydro power, Second is the US
Hayhurst, Chris.
Hydrogen Power of the Future
. New York City: The Rosen Publishing Group, Inc, 2003. Print.

"Hydroelectric energy."
EPA
. Environmental Protection Agency,n.d. web 08 Dec.
Maehlum, Mathias Aarre. "Hydroelectric Energy Pros and Cons - Energy Informative." Energy Informative. N.p., 21 Feb. 2014. Web. 11 Dec. 2014.
Rutledge, Kim, Melissa McDaniel, Diane Boudreau, Tara Ramroop, Santani Teng, Erin Sprout, Hilary Costa, Hilary Hall, and Jeff Hunt. "Hydroelectric Energy." - National Geographic Education. Ed. Kara West and Jeannie Evers. N.p., n.d. Web. 04 Jan. 2015.



The price people pay to have hydroelectricity has grown significantly over the years.
"Water power is the most ancient method, and so far it is the most practical of all" (Perlman 6).
Researching (Reservoir)
Independently (Intake)
Produces (Penstalk)
Teenagers (Turbine)
Giving (Generator)
Pandas (Power Lines)
Regularly (River)
Here's a mnemonic device to remember the steps to turning water into electricity :)
(Question 1)
"A hydroelectric power plant converts this energy into electricity by forcing water, often held at a dam, through a hydraulic turbine that is connected to a generator" (epa.gov).
These are turbines in a dam.
Currie, Stephan.
What is the Future of Hydro power?
San Diego: Reference Point Press, 2013. Print.
Oxlade, Chris.
Energy Technology.
Mankato: Black Rabbit Books, 2009. Print.
(Question 2)
"Hydroelectricity."
EPA
. Environmental Protection Agency, 25 Sept. 2013. Web. 11 Dec. 2014. http://www.epa.gov/cleanenergy/energy-and-you/affect/hydro.html
Thanks for watching!
Perlman, Howard. "Hydroelectric Power: How it Works." USGS, 02 May. 2014. Web. 12 Dec. 2014. http://water.usgs.gov/edu/hydroworks.html
"Hydroelectric Power: How it Works."
Hydroelectric Power: How it works
, USGS Water- Science School. USGS, 2 May 2014. Web. 10 Dec. 2014.

"Hydroelectric Power."
Renewable Energy,, Benefits and Cons of Hydro Energy
. Alternative Energy. Web. 10 December. 2014.

Reclamation Managing Water in the West: Hydroelectric Power. U.S Department of the Interior Bureau of Reclamation Power Resources Office, July 2005. Print.
All images from Prezi
images from prezi :)
(The only problem would be the cost to build these dams.)
Full transcript