Our 125mm polycrystalline solar panel features high photoelectric conversion efficiency. It uses crystalline silicon in the form of wafers. When the sunlight hits on the polycrystalline solar panel, some light energy is absorbed into the semiconductor, knocking electrons free from atoms. These electrons will form a current which can be used for lighting or other purpose.
Since solar panel is expensive and will take up space, in order to make polycrystalline solar panel more economical and practical, we strive to improve the performance of our polycrystalline solar panel, enabling it to absorb the most energy from the smallest amount of area.
At present, polycrystalline solar panels can operate at about 10% to 15% efficiency. However, we believe that polycrystalline solar panels will be able to absorb 15% to 20% energy from sunlight, soon.
|Specifications of Polycrystalline Solar Panels|
|Cell||Polycrystalline silicon solar cells 125mm×62.5mm|
|No. of cells and connections||36(4×9)|
|Dimension of module(mm)||635×541×30|
|Limits of Polycrystalline Solar Panels|
|Operating temperature||-40 to+85℃|
|Maximum system voltage||715VDC|
|Characteristics of Polycrystalline Solar Panels|
|Open circuit voltage(Voc)||21.0V||21.6V||22.4V|
|Optimum operating voltage(Vmp)||17.0V||17.2V||18.0V|
|Short circuit current(Isc)||2.4A||2.5A||2.65A|
|Optimum operating current(Imp)||2.06A||2.33A||2.5A|
|Maximum power at STC(Pm)||35W||40W||45W|
STC: Irradiance 1000w/m2, Module temperature 25℃, AM=1.5