Solar Panel Temperature Derating Calculator


Calculate how much power is lost by a solar panel/system due to temperature effects.

Compare the performance of Mono/Poly panels and Thin film amorphous panels due to temperature effects.


NOCT°C Cell temp @ 800mW and 20°C ambient, typically 45°C
Pmax/°C % Coefficient for max Power varying with temp, -0.48% for mono/poly, -0.20% for amorphous
Ambient Temp°C
Incident IrradiationmW Incident irradiation is about 1000mW in summer when the sun is overhead
System SizeWp