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Solor panel question? Answered

So I am building a playground for my son. Outside and I want to use solar panels. One of the aspects I want to do. Is to be able to connect portable laptop. And 4 Computer screens. How big does the solar panel have to be in order to power all those items. I currently have a solar panel that produces 30 W but I am using that for LED rocker switches within the playground.

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randofoBest Answer (author)2017-05-15

This seems outside the scope of this class.

Nevertheless, you need to figure out how many watts the LEDs are consuming. LED strips tend to consume more watts than just a few LEDs.

Then you need to figure out how many watts the laptop and computer screens are consuming.

Also, don't forget about the power requirements of charging and voltage conversion circuits.

The total value of all of these components should be under 30W.

You also need to figure the solar panel may not be operating at peak efficiency throughout the course of the day. And on top of that, you need to figure out how often these LEDs and screens will be running.

If you know the voltage and current, you can figure out Watt ratings using an Ohm's law calculator:


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