1. Nodirbek Maksudov
Environmental Science

2. Hydroelectric power, or
hydroelectricity, is electrical power
that is generated through the kinetic
energy of flowing water.
About 20% of the world's electrical
energy requirement is fulfilled by
hydroelectric power. It is the most
widely implemented renewable
energy generation technology, with
the highest market share in the world.

3. The dam, lake or reservoir stores
water
The water goes through the
Penstock to the turbines
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

4.  Electricity produced through the
hydroelectric energy generation method
is produced without any pollution or
harmful environmental effects. Neither
are any dangerous greenhouse gases
emitted.
 Hydroelectric power plants generate
renewable energy. This means that the
source of the energy won't run out
anytime soon. Since running water,
unlike fossil fuels, will always remain a
constant, hydroelectric energy has no
expiry date.

5.  Hydroelectric energy plants alter the
environment in their surroundings to a
great extent. River ecosystems are
based on the continual flow of water.
The backwaters from reservoirs
severely change the conditions, turning
it into a swampy, lake biome.
 The flood from the backwater also
forces human settlements, sometimes
several villages, to relocate.

6. Grand Coulee Dam, located in
Washington State
Chief Joseph Dam, located in
Washington State
Robert Moses Niagara
Hydroelectric Power Station,
New York
Bath County Pumped Storage
Station, Virginia
Hoover Dam, between Arizona
and Nevada
The Dalles Dam, Oregon

8. • http://www.buzzle.com/articles/how-hydroelectric-power-
works.html
• http://www.buzzle.com/articles/hydroelectric-energy-pros-
and-cons.html
• http://www.energyformankind.org/hydro-energy/what-is-
hydro-energy/
• http://en.wikipedia.org/wiki/The_Dalles_Dam