where does solar energy come from?
How can we use it in our daily lives?
How is it collected so that humans can use it?
What are the advantages of it?
What are the disadvantages of it?
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{ 1 comment… read it below or add one }
1) Solar energy comes from the sun. Actually this energy is a result of the atomic fusions that happens at the sun because of the high temperatures and atm. Just for knowlege atomic fussion is also the energy that runs the core of Earth.
2) It is not “how can we use it”! We use it!!! Natural uses is in Photosynthesis, in mutations on DNA (and Rna) in order to evolve life or to produce Vitamin B in our bodies and soooooooo much more!! Also Winds are result of the solar energy also as weather. In tecnology we can use Solar energy in order of biochemical actions, in producing electricity (Photoelectric phainomena), heat, cool, mechanical energy and maaany more!!
3 Advantages : Free (actually nothing is free) and unlimited (for humanity’s life scale) energy source, “Green” energy.
4) Disadvantages : The current techologies cannot utilize solar energy very well (e.x. Solar PV have an efficiency of 8-16%) also they are more expensive (for producing electric energy). Solar geometry is not the same in every place on planet. New solar techology investments makes it costier (at the bigining as the laws of free market).