2.  Solar energy is the energy obtained by
capturing the light and heat emitted by
the Sun.

3. He found that
Discover: some materials
Physicist generated
Edmond electric currents
Becquerel with the light
exposition.
It Studied the
originates effect on the
by Heinrich Hertz…
solid, making
solar cells that
changes light
into electricity.
Used Czochraski
Bell Labs…
technique.

4.  Photovoltaic solar panels:  Thermal solar panels:
are a set of photoelectric these solar
cells together which forms panels absorb solar heat
a solar panel. to heat water for domestic
This solar panel produces use and home heating.
energy through It consist of tubes mounted
the photoelectric effect on aluminium covered
that makes by a glass plate. Solar heat is
them absorb photons of trapped between the
light and glass and tubes.
http://www.youtube.com/watch?v=gvFqwxgwsQc&feat
release electrons. When ure=related
these free electrons are
captured, the result is an
electrical current
that can be used as
electricity.

5. As the sun moves, some solar panels
move according to the position of the
sun.
http://www.youtube.com/watch?v=nKa7-
pFz2iY

6.  Produces heat; for heating and water
heater.
Use 1:
 Sunlight transforms directly into electricity.
Use 2:

7.  Battery chargers, fans, garden lamps, water
pumps... Today, almost everything can run with
solar power. There are also many solar panels that
appear every day in new roofs, and it can also
heat our homes and power the most remote
places.

8. Advantages Disadvantages
-It is clean energy. -Requires large initial investment.
-It is respectful to the environment -Require large land.
-It comes from an inexhaustible -Is danger by the hight
energy source. temperatures reach.
-Solar energy don’t produce -The places where there is more
waste. radiation, are desert places and
away.
-Do not use fuel. -It has less performance than other
systems.

11. Is a method for obtain
energy which works
with the air heated by
the sun and rises
through a chimney
where the generators
are.