Figure above shoes the bypass diodes connected to solar cells. Currently the majority of modules use three diodes for 60 or 72 cells, or one diode for every 20 or 24 cells. A bypass diode is connected in parallel with individual cells within the panel, and acts as a bypass or a shortcut for the current generated by the cells. If a cell is shaded, the diode prevents the current from flowing through that cell, directing it instead through the diode, ensuring that the rest of the panel continues to generate electricity. Similarly, if a cell is damaged, the diode can help to prevent the damaged cell from negatively affecting the performance of the rest of the panel. Bypass diodes are typically rated to handle a specific current and voltage, and are chosen based on the specifications of the solar panel in which they are being used. They are usually mounted on the back of the panel and are designed to be as compact and low profile as possible, so as not to affect the aesthetics of the panel. Finally, selecting panels that are designed and manufactured with high-quality materials and with a focus on performance can help to reduce the likelihood of hot spots.
AE Solar Hot spot free PV modules
Ae Solar’s engineering teams are always focused on new innovations and emerging technologies in photovoltaic. Their continuous effort and research allows AE Solar to deliver its products with high quality & reliability.
As a result of our R&D activities, we’ve successfully developed the world’s first Smart Hotspot Free module for mass production with TÜV certification in 2016.
We use bypass diodes between each cell in our Hot-Spot Free Modules to eliminate the development of hot-spots and thus the damages and risks associated.
Available up to 350Wp range, the AE Smart Hot-Spot Free Modules offer up to 30% more power output compared to standard PV Modules thanks to their improved efficiency. This added efficiency translates into less modules needed and less space required for installation.
In conclusion, hot spots are a common issue that can significantly impact the power generating capacity of solar panels. By understanding the causes of hot spots and taking steps to mitigate their impact, it is possible to maximize the efficiency and performance of solar panels and ensure that they remain a cost-effective and sustainable source of energy.
Authors: Vidhyashankar Venkatachalaperumal, Afshin Bkahtiari