Solar Panel Temperature
Effect of temperature on efficiency of Solar Panels?
I’ve done some research on this topic and from what I’ve read it suggests that the higher the temperature the lower the voltage output and therefore lower efficiency but from what we’ve learned in class it should be the opposite as the electrons would be ‘excited’ from the extra heat and would therefore be able to produce a higher voltage output.
So I was wondering which is correct and why?
The higher the temperature, the lower the voltage. Solar panels actually output more instantaneous power on a cold bright winter day than in the summer. But obviously, the sun shines longer in the summer, so throughout the longer day, it totals more output.
Update: I just found out why. Temperature affects resistance (ohms), changes to resistance changes voltage.