SOLAR ENERGY

LUCÍA MOLINA, ANA PUERTA, ELENA HERNÁNDEZ, MARTA

CORBAL ÁN2 º A

WH E RE D O E S I T CO M E F RO M ?• Solar energy comes

from the Sun. • The Sun generates

energy in its core in a process called nuclear fusion.

• Only a small portion of the energy radiated by the sun into space strikes the earth, one part in two billion.

UsesU SE S O F T H E S O L A R E N E R GY

Solar energy is used in two ways:

•Thermal energy: is energy possessed by a liquid (water) when is heating by the solar rays. Central heating or obtain warm water

•Photovoltaic energy: is the energy created by converting solar energy into electricity using photovoltaic solar cells.

A DVA N TAG E S

• Solar energy is a resource that is not only sustainable for energy consumption it is in indefinitely renewable.

• Solar power can be used to generate electricity, it is also used in relatively simple technology to heat water.

• The use of skylight in home construction can also greatly reduce energy expenditure required to light rooms in a homes interior during the day

D I S A DVA N TAG E S

•The primary disadvantage of solar power is that it obviously cannot be created during the night. The power generated is also reduced during time of cloud cover.

• Solar panel energy output is maximized when the panel is directly facing the sun. If not we will see a reduced energy production when the sun is not at an optimal angle.

•Even todays most efficient solar cell only convert just over 20% of the suns rays to electricity