Electronics > Power/Renewable Energy/EV's

Solar Cell - Equivalent Circuit Question

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fourfathom:

--- Quote from: Zucca on June 24, 2022, 03:38:04 am ---BTW just because I do not want that somebody here missing it...

https://www.pveducation.org/

The above is IMHO hands down the best place to learn how PV works.

--- End quote ---

Thanks!  This looks like the perfect amount of detail for me.

Sredni:

--- Quote from: fourfathom on June 24, 2022, 05:13:15 am ---
--- Quote from: Zucca on June 24, 2022, 03:38:04 am ---BTW just because I do not want that somebody here missing it...

https://www.pveducation.org/

The above is IMHO hands down the best place to learn how PV works.

--- End quote ---

Thanks!  This looks like the perfect amount of detail for me.

--- End quote ---

If you don't mind the simil-Schwartzeneggerian accent, this short course from UT Delft might be right down your alley

https://www.youtube.com/playlist?list=PLI-7Sbz0TyYWWbQUYd8B4YPc2jJXsQcfA

(The guys name is Arno :-) )

ejeffrey:
The equivalent circuit should not be taken literally as individual discrete components, it's all happening within the junction.

However, solar cells do heat up more when open circuit.  100% of the absorbed light gets turned into heat.  When you use them to power a load, some percentage (the efficiency) goes to the load, and the remainder is heat.

This is true as long as the absorption of the cell (it's color) doesn't change with load, but AFAIK it does not, or at least only to a very small degree -- not on par with the 20% of light that is turned into electricity,

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