A Comparative Study of TOPCon and PERC Solar Cells
- RenewSys India
- Feb 13
- 2 min read
As the renewable energy sector grows, solar energy has emerged as a leading option. Central to solar energy technology are solar modules, which have been evolving and will continue to do so. Among the various technologies available, two prominent contenders stand out: TOPCon (Tunnel Oxide Passivated Contact) and PERC (Passivated Emitter and Rear Contact). Both types of solar modules are essential for converting sunlight into electricity, but key difference between the two is that TOPCon has tunnel oxide passivation on rear side. This allows for higher efficiency and thus higher electricity generation by the TOPCon cells.
Understanding the differences between these technologies can help you make an informed decision as you consider upgrading your solar project.
TOPCon v/s PERC
Solar modules serve as the backbone of photovoltaic systems, and the competition between TOPCon and PERC is intensifying . While PERC technology enhances light absorption by using passivated emitter side and electron collection AlOx passivation and BSF on the back surface, TOPCon takes a different approach. By incorporating a thin tunneling oxide layer, TOPCon significantly boosts electron collection efficiency, leading to higher overall performance.
When choosing solar panels for residential or commercial applications, several key features influence their performance, efficiency, and overall ROI (Return on investment).
Understanding these differences is crucial for making an informed decision. Here, we explore the important aspects of solar panel technology, particularly focusing on efficiency, temperature coefficient, degradation rate, bifacial capability, and manufacturing complexity.
As we delve deeper into these technologies, the advantages of TOPCon become increasingly clear. With its higher efficiency rating, it generates more power from the same solar cell cross- section area compared to PERC. This efficiency not only maximizes energy output but also contributes to sustainability by reducing material usage and the space
In hot climates, where performance can be compromised, TOPCon’s lower temperature coefficient ensures that energy production remains reliable. Additionally, its lower degradation rate means that TOPCon panels maintain their efficiency longer, providing better long-term returns on investment.
The improved bifaciality factor of TOPCon panels allows them to harness sunlight from both sides, further enhancing energy output without requiring additional space. This feature is particularly advantageous for maximizing output in various installation scenarios
For those considering an upgrade to their solar systems, understanding these differences is essential. By choosing TOPCon technology, you’re not just investing in solar panels; you’re investing in superior performance and reliability.
If you have questions about our products or want to explore our solar solutions further, please visit our website or contact our sales team at RenewSys. Together, we can illuminate your path toward sustainable energy.
References: