current from solar panel

@reshmars-LCLrQO • Oct 27, 2024

Oct 27, 2024

1.3K

even if solar panel is not switched on, sunlight keeps striking d panel n the photons wil strike it and release electrons right?? which means if i switch on the solar panel terminals after a long time shouldnt i get a very very high current frm its output as there has been many electrons that was released?? or are the electrons released frm the panel only on switching on the panel ??? Im very confused...help

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Jeffrey Arulraj

@jeffrey-xA7lUP • Oct 11, 2012

Based on the load connected only at any point of time current will be generated in solar panel

If there is no load literally 0 current will be produced in the panel even when the photons strike on them because the electrons liberated do not have a path to move they become stagnant and prevent the production of more electrons and so there will not be too much current when you turn on after a long time
Henri

@henri-7eYVw8 • Oct 12, 2012

i hope Jeffrey has explained it well to you...it all has to do with load....if not just ask
Ramani Aswath

@ramani-VR4O43 • Oct 12, 2012

reshmars
even if solar panel is not switched on, sunlight keeps striking d panel n the photons wil strike it and release electrons right?? which means if i switch on the solar panel terminals after a long time shouldnt i get a very very high current frm its output as there has been many electrons that was released?? or are the electrons released frm the panel only on switching on the panel ??? Im very confused...help
To amplify Jeff's comments, all that happens is that a potential difference is set up, the value of which depends on the photo voltaic system (and to some extent the intensity). Once an equilibrium is reached this becomes constant. Only when a load is put on the panel a current flows. Have you thought of what happens with a battery?A chemical reaction sets up a potential. If the battery is unused for long and suddenly switched on, do you get infinite current?
Jeffrey Arulraj

@jeffrey-xA7lUP • Oct 12, 2012

bioramani
To amplify Jeff's comments, all that happens is that a potential difference is set up, the value of which depends on the photo voltaic system (and to some extent the intensity). Once an equilibrium is reached this becomes constant. Only when a load is put on the panel a current flows. Have you thought of what happens with a battery?A chemical reaction sets up a potential. If the battery is unused for long and suddenly switched on, do you get infinite current?
SO in any devices only voltage is setup and the current is generated when the load is connected to the two terminals where the voltage is setup
Henri

@henri-7eYVw8 • Oct 14, 2012

if there is no load to drain the current...

jeffrey samuel
SO in any devices only voltage is setup and the current is generated when the load is connected to the two terminals where the voltage is setup
current is there but the pottential difference is set up only when there is load...so if there is no load..basically the voltage read across is zero volts
Ramani Aswath

@ramani-VR4O43 • Oct 14, 2012

There is some more info here:
<a href="https://www.pveducation.org/pvcdrom/solar-cell-operation/open-circuit-voltage" target="_blank" rel="nofollow noopener noreferrer">Open-Circuit Voltage | PVEducation</a>
Jeffrey Arulraj

@jeffrey-xA7lUP • Oct 14, 2012

Henri
if there is no load to drain the current...

current is there but the pottential difference is set up only when there is load...so if there is no load..basically the voltage read across is zero volts
What do you mean current is there can you explain it a little more for us