How Solar Panels Work?


Curious about how solar panels work? My friend you must now be aware of solar cells, and you even know how solar cells work?

You must have seen flat rectangular panels with black colored squares and metallic strips running through them. Yes, what you have seen is a roof mounted solar panel. These panels are used to generate electricity for home owners or for any building.

The Solar cell in general produces 0.5 Volt to 1.0 Volt irrespective of the sunlight received by it. But in order to supply power at 12 Volts or 24 Volts we need to connect solar cells in series. Solar Cells can be connected in parallel in order to obtain more current.


How do Solar Panels Work - Simple Explanation

  • When the solar panels are exposed to sunlight, photons in the sunlight strike the solar panel. These photons are either reflected from the surface or some even pass through the connected solar cells. A few number of these incident photons are absorbed by the solar cells.


  • These photons give their energy to the electrons and holes in the solar cells. The energy exchange takes the charged particles(electrons) from the valence bands to conduction bands. This causes the static electric field in the solar cells to pull these charged particles into a directional current. The Solar Panels too work on the principle of Photovoltaic Effect.


  • We are able to get Direct Current (DC) as the output of the solar panel. This DC can be used directly or is converted into Alternating Current (AC) by converters for using with common AC Supply Loads.


So my friend now that you are armed with the knowledge of how solar panels work, you can surely pick the best solar panel as per your requirement.




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