Alejandro AlmagroAlejandro AlmagroDaniel CuéllarDaniel Cuéllar

Look at this set. How many source of energy

can you see?

Electrical energy

Sonorous energy

Luminous energy

Kinetic energy

Shown:The energy is with us every day, and helps us even in the simple

tasks. What would we do without it? Nothing.

Imagine a world in wich there wasn't heat (thermal energythermal energy) or

light (luminous energyluminous energy) or sound (sonorous energysonorous energy). Couldn't even light a bulb

(electrical energyelectrical energy). ). Moreover, would haven't medicines

((chemical energychemical energy). But, who ). But, who need medications if we couldn't need medications if we couldn't

move move (kinetic energy).

The Sun was formed:And during until:Then begin to get stronger and bigger, until it becomes a red giant. Finally, it will sink under it's own weight and become a white dwarf, which may take a trillion years to cold.

Remains of a red giant

White dwarf

Solar energy is the energy gained by capturing light and heat emitted by the Sun.

It is a so-called renewable energy, particularly clean group. Although, at the end of his life, solar panels, which are responsible for capture and transform energy from the sun can pose a contaminating waste. Photovoltaic panels

spoil the landscape

The photovoltaic panels catch the Sun’s heat and transform it into mechanic work. Then, transform the mechanic work into electrical energy.

Some of the advantages of the solar energy are:

•It doesn’t pollute•It doesn’t run out•Electricity is cheaper•It provides energy where it doesn’t carry the powerline•The installation has easy maintenance•Etc…

Now, we’re going to look the disadvantagesdisadvantages.

Some of the disadvantages of the solar energy are:

•Spoils the landscape•The installation require much space•Its installation is expensive•When it doesn’t receive energy from the Sun, it uses its supplies, but it doesn’t generate new energy•Etc…

Fields of solar panels