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I've read multiple threads about this but I've yet to come across an answer to this question.... would it be possible to have a small bank of led lights power multiple solar panels? For instance, if I were to build a dome of solar panels facing inward toward a few led lights placed on the bottom of the dome, would that be enough to power anything substantial? I understand that most solar or panels are only about 15% efficient but could this design offset that efficiency rating to produce more power than it actually uses?

marked as duplicate by LShaver, Highly Irregular, Jan Doggen, THelper Jan 22 '18 at 19:56

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    Yes, you can use LEDs and solar panels to generate electricity, but it's a waste of energy because you will only generate a fraction of the energy you use to power the LEDs. You cannot magically generate new energy out of 'thin air'. – THelper Jan 22 '18 at 20:01
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Why not just use the power that is powering the LED lights?

You cannot produce more power than you consume. That would be a perpetual motion machine and is generally accepted as not possible. Perpetual motion

Not getting how a dome offsets efficiency. You do know the light is absorbed by the panel?

Sorry no duplicate was marked before I answered.

  • I know I'm not the smartest guy but the way I figure it, and please correct me if I'm wrong, but the light from the led will travel in a 180 degree arc from the source, 360 degrees around so it would make sense that multiple panels in a dome would be able to capture more emitted light than just one panel alone. As for powering the led, I would use the power generated from the panels to feed the light. I know an intital power source would be required for the led but after the panels absorb enough light couldn't they power the led themselves? – David hill Jan 22 '18 at 19:36
  • @Davidhill Yes,would capture more of the emitted light with multiple panels. But you would not capture more light than emitted. What you do capture is 14% efficiency. – paparazzo Jan 22 '18 at 19:40
  • I get that you can't capture more light than emitted but if one panel produced x amount of power then would 2 panels create 2x amount from the same source and so on since more of the enmities light is absorbed? – David hill Jan 22 '18 at 20:04
  • @Davidhill Don't know how to be more clear. Can't help you. – paparazzo Jan 22 '18 at 20:09
  • Thanks anyway. I guess I just not understanding the concept. – David hill Jan 22 '18 at 20:23

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