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Solar Energy

With the price of non-renewable energy sources soaring, Kidzworld takes a look at the environmentally friendly energy source we all know and love - our sun! Get the goods on solar energy right here!

How It Works

Solar energy is the energy we acquire from the sun. Millions of years before humans realized the sun's potential as a renewable energy source, plants were using the sun's energy to convert carbon dioxide and water into sugars to eat. This process is called photosynthesis. Today, we have tried to copy plants by creating something called photovoltaic (PV) cells. These man-made cells are comprised of semiconductors, which are materials that are able to absorb light energy. The most commonly used semiconductor today is silicon because it is, so far, the most cost-effective material. The silicon absorbs a portion of the energy from the light that shines down on it, electrons are suddenly knocked free and are channeled to flow in the same direction by electric fields within the PV cell. On both the top and bottom of the silicon, metal contacts are placed and, through these contacts, the solar energy is extracted and stored.

Practical Uses

Solar energy is used for a variety of different things but the ones that you are most familiar with are solar-powered calculators, solar-heated swimming pools and maybe even the hot water in your house is heated by solar panels. Because solar energy is clean and renewable, it would be ideal to make a move from non-renewable heating sources like gas to solar on a grander scale, so research is ongoing to make solar energy a more cost-effective alternative for people around the world.

Did U Know?

  • Solar energy is measured in kilowatt-hours. One kilowatt hour (kWh) is the amount of energy needed to burn a 100 watt light bulb for 10 hours.
  • Enough sunlight falls to Earth every hour to meet the world's energy demands for an entire year - the trick is learning how to extract that energy in a cost-effective way.
  • Approximately 10,000 homes in the United States are run entirely on solar power.
  • Solar energy can even be used to cook food!
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  • 50 percent more than today.
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rainbowpoptart
rainbowpoptart posted in General:
Ahh, I love this so much! ♥♥  It's so kind of you to want to send a nice message to people, even the ones you don't know. Everyone needs to know that they matter. If you weren't supposed to exist, you wouldn't. You're a fantastic person, OP. ♡
reply 13 minutes
mustachepuppy
mustachepuppy posted in General:
here is my inspirational message I guess haha- You are all incredibly beautiful and needed on this planet.  Always remember that.  Look in the mirror and smile at yourself.  Who wouldn't miss that gorgeous smile?  I know this may sound fake, but this message needs to be heard.  Now sit down and think of what life could be.  Imagine never waking up one more time to see one more sunset, to not laugh at something again, to never see a face that you know cares for you.  Now, what makes you special?  Nothing else could replace that part of you.  Literally nothing.  You have a completely different genetic makeup than anyone, not that this post is abut science or anything.  So don't think you'd be better off dead.  Because trust me, you'd be destroying everyone around you worlds, and your own.  There is someone that cares about you.  Always.  ​Hope you enjoyed my cheesy message  and I hoped it helped.  I just wanted to be positive.  That's who I am.
reply 40 minutes
BookWorm86
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Pink_Cool_Girl
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tank48
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