(1) Since the output power of solar panels depends on factors such as solar irradiance and solar panel temperature, the measurement of solar panels is performed under standard conditions (STC). The standard conditions are defined as: air mass AM1.5, light intensity 1000W / m2, temperature 25 ° C.
(2) Under these conditions, the maximum power output by the solar panel is called peak power. In many cases, the peak power of the module is usually measured with a solar simulator. The main factors affecting the output performance of solar panels are the following:
1) Load impedance
2) Sunlight intensity
3) Temperature
4) Shadow
