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Nowadays, the environment is very
important in every country. Obtaining
energy from flowing water is one of the
renewable energy sources and its impact on
the environment is much smaller than, for
example power plants that burn coal, oil or
gas. A number of so-called emerging
hydroelectric power plants that are located
on the river and use flowing water to
generate electricity is bigger and bigger
The principles of the operation of the
Water affects the turbine blades and drives it, that sets in
motion, and drives a generator, producing electricity.
Then the water is discharged back into the river bed and
continues the established electric energy is transferred to
the power network
-Thermal Power Plants - Nuclear Power Plants
-Hydropower Plants -Unconventional Power
Problems caused by the dam :
When a dam is constructed, the destruction
of the environment is highly visible. The
problems caused by the dam
-Increase flood risk
-Lower groundwater tables
-Cause an accumulation of toxic materials
-Affect entire ecosystems
Pumped-storage - involves draining the second tank located at a high altitude
Run of the river - do not pile up water and do not require the
creation of inundations. Their power is limited by the power
of flowing water
Cross section of Run-of-the-river hydroelectricity
Tidal power plants
How do they work ?
The regularly repeated rise and fall of the water
level in the ocean is called the tidal
phenomenon, which is caused by the
gravitational forces of the Moon and the Sun. It
is the new way of producing energy.
Also called tidal energy, is a form of hydropower
that converts the energy of tides into useful
forms of power, mainly electricity.
Where can we find it ?
France has opened the world's first tidal power in
November in 1966 .
The first wave power station was established in the United States. But
attached permanently subjected to movements of the waves, so that
placed in the middle of the float rises and falls by moving the piston.
This rotates the generator and so electricity is sent to shore underwater