The document discusses how hydroelectric power works by using water from a reservoir to turn turbines that generate electricity. Water is stored in a dam or reservoir then flows through a penstock to spin turbines in a hydroelectric plant. The turbines spin a generator to produce electricity that is sent through power lines. The largest hydroelectric plants in the US are located in Washington and Oregon near sources of water. Hydroelectric power is considered sustainable as it is renewable and produces little waste, but it is not the main electricity source due to limitations in water availability.

1. Kardan UniversityKardan University
Uploaded BY: Engr.Ahmad SameerUploaded BY: Engr.Ahmad Sameer

2.  Hydroelectric power is one method of creating
energy by using water.
 Uses water starting in a reservoir, and ends
with the energy in the form of light in a light
bulb.
 Hydroelectricity is generated in a hydroelectric
power plant.

3.  The dam, lake, or
reservoir stores
water
 The water goes
through the
Penstock to the
turbines
http-//www.ucsusa.org/clean_energy/renewable_energy_basics/how-hydroelectric-energy-
works.html#Converting_Moving_Water_to_Electricity

4.  The turbine (propelled
by the force of the
water being carried in)
turns the generator to
produce the electricity
 This electricity is then
sent through power
lines to produce
energy in the form of
light in a light bulb.
http://eetd.lbl.gov/inventors/hydro/hydro-links.html

5.  Dam, Lake, or Reservoir
 Kinetic energy stays the same
 Gravitational potential energy high
 Dam holds water against the force of gravity
 Penstock
 Gravitational kinetic energy rises
 Gravitational potential energy decreases
 Turbine
 Gravitational kinetic energy becomes kinetic energy of motion
 Gravitational potential energy stays the same
http-//www.biocrawler.com/encyclopedia/Water_power

6.  Generator
 Kinetic energy of motion rises
 Potential energy rises
 The water transitions to energy
 Power Lines
 Kinetic energy of motion rises
 Potential energy decreases
 Light Bulb
 Kinetic energy of motion stays the same
 Potential energy stays the same
 Kinetic and potential energy have reached equilibrium
Microsoft Powerpoint Clip Art

7.  Largest power plants in the United States:
 Washington
 Grand Coulee Dam
 Chief Joseph Dam
 John Day Dam
 The Dalles Dam
 Oregon
 John Day Dam
 The Dalles Dam
 Arizona-Nevada border, Colorado River
 Hoover (Boulder) Dam
http://www.leo.lehigh.edu/news/local/index.html

8.  The largest
hydroelectric power
plants in the United
States are located in the
northwestern states of
the country
 This is because they are
closer to the ocean
 Providing more water to
be used in the process of
creating electricity

9.  Is Hydroelectric Power a sustainable source of
electricity?
 Yes it is!
 Hydroelectric power is a renewable source which
produces little to no waste while creating electricity

10.  Why is hydroelectric power not the main
source of electricity if it is sustainable and does
not produce much waste?
 Is there any way that the amount of waste can be
reduced to no waste at all? How?