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Home » How do solar panels work? – Richard Komp e technology in the aid of farmers upsc

How do solar panels work? – Richard Komp e technology in the aid of farmers upsc



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The Earth intercepts a lot of solar power: 173,000 terawatts. That’s 10,000 times more power than the planet’s population uses. So is it possible that one day the world could be completely reliant on solar energy? Richard Komp examines how solar panels convert solar energy to electrical energy.

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Lesson by Richard Komp, animation by Globizco. .

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How do solar panels work? - Richard Komp

How do solar panels work? – Richard Komp

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How do solar panels work? – Richard Komp
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39 thoughts on “How do solar panels work? – Richard Komp e technology in the aid of farmers upsc”

  1. It's not the electrical field that separates the charge carriers at the pn-junction, it's closer to this:
    In a solid material electrons don't only move due to the electrical field, but also due to diffusion (one could argue whether or not diffusion can be viewed as a force, but it is undeniable that diffusion causes a net electron movement at a pn-junction). The one electron added by light will certainly not travel all the way from where it was separated to the metal contact. It is more like adding a water drop to the center of a bath tub: yes, the water level will rise, but the new drop pushes all the other water around rather than stretching all over the surface. Now the reason the electrons rather travel through the light bulb path than through the p-type semiconductor is that the electric resistance of the p-type is far higher than the light bulbs electric resistance. This difference in resistance is all that gives the flow of free charge carriers direction in a solar cell: According to Kirchhoff's laws a bigger part of the net current flows through the light bulb instead of through the solar cell itself.
    This is still a simplified picture, as the holes are still completely neglected. But it is closer to the real process than what is described in the video.

  2. It’s good to see how solar energy works but it’s also good to know where the materials used to build them are coming from and in which condition we’re getting them
    Drcongo provides 60% of the world materials used for solar energy including electrical transportation
    But in which condition we get those materials?
    Millions of people already died from conflicts caused by army groups sponsored by multinational companies with complicity of the so called powerful nations
    Are we going to stay quiet and let those innocent people being killed just because we want to drive a nice car or having electricity in house ?
    We all concerned about what it’s going on right now in east of Congo
    Take time to think how you love your family and the pain you would have you to loose your love one
    Me and you we can give hope to those people who have been rejected and killed for no reason
    Thanks

  3. There are plenty of solution to fight pollution and stuff like that, however one of the most popular is actually this one… I’m just wondering, why haven’t governments started to use it? Are they waiting until global situation gets worse?

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  5. We need a binary power system in America, all Americans make power from solar panels and the excess goes back to the power company to power us at night…. It can be supplemented by the Niagara Falls water system that we could also use to "charge" power banks that can be used on cloudy days.

  6. Imagine if humanity worked together and spent all their efforts fighting climate change, hunger, disease, and working on ways to innovate together…..one can dream I suppose :/

  7. HaHaHa. In a socialist/communist world, ya. Only solar. Meanwhile, the powerful will still control the “conventional” grid. Rolling blackouts would become normal and rationing of electricity would begin.

  8. Can someone please elaborate on the statistics given?
    the 173 thousand TW earth intercepts is that daily? and when he said it is equal to 10X the planets population uses is it yearly uses of energy?

    the statement made is missing half of it's information.

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