Photovoltaics and Solar Energy Solar Essay

Submitted By Fong-Wu
Words: 624
Pages: 3

Solar Energy ( Introduction )
-Sunlight is a renewable energy source which can be converted light energy into electric energy by solar panels.
-Solar power is energy from the sun.. Solar energy has been looked upon as a serious source of energy for many years because of the vast amounts of energy that are made freely available, if we use our modern technology. More Information about solar energy

Solar Energy

What is Solar Energy?
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Energy rgy-pros-and-cons/ 2) gy1/solar7.htm 3) ar­energy­advantages­vs­disadvantages /
4) lar­energy/advantages­and­disadvantag es­of­solar­energy/


the surface of the earth receives 120,000 terawatts of solar radiation (sunlight) – 20,000 times more power than what is needed to supply the entire world.


Summary/ Conclusion

Made by : Lauren Choi
Victoria Wu

Advantages of Solar Energy


( How it works)




disks that convert sunlight into



Photovoltaic solar cells are thin silicon

Solar doesn’t work at night

Ongoing Free Energy

In the solar cells, the bonds [between


silicon atoms] are made of electrons that are shared between all of the

atoms of the crystal. The light gets


using solar energy is that beyond initial installation and maintenance, solar energy is free.
Solar doesn’t require expensive and ongoing raw materials like oil or coal, and requires significantly lower operational labor than conventional power production. 2.

Expensive Materials

Keeps Our Climate Livable


up to a higher energy level and can

it does not emit any green house gases.
Solar energy is produced by conducting the sun’s radiation – a process void of any smoke, gas, or other chemical by­product.


was bound. That electron can then move

Because solar doesn’t rely on constantly mining raw materials, it doesn’t result in the destruction of forests and eco­systems that occurs with many fossil fuel operations. 3.

Requires Space

Power density, or watt per square meter (W/m²), is essential when looking at how much power can be derived from a certain area of real estate of an energy source.


However, currently, widespread solar panel efficiency – how much of the sun’s energy a solar panel can convert into electrical energy – is at around