Mono PERC vs. Bifacial & TopCon Panels: What’s Best?

The solar industry is advancing quite fast, and a wrong panel choice can end up with an appalling impact on efficiency, cost savings, and overall performance. The guide below is in simple terms, where you can be able to decide between Mono PERC, Bifacial, or TopCon panels. Furthermore, we’ll also talk about how India—especially Karnataka—moves forward with solar energy by promoting different policies and giving away incentives for the homeowners. 

Mono PERC Panels: Reliable & proven 

What are they? 

One of the most effectively used solar technologies right now is the Mono PERC (Monocrystalline Passivated Emitter and Rear Cell). It is the unique design of these panels that take in sunlight from only the front side, which is the reason why they can be efficient and cost friendly. 

Why choose mono PERC? 

• Efficiency: Normally, 20-22%, thereby making them the best choice for most installations.  

• Cost: It is affordable in comparison to others  

• Best For: Both commercial and residential  

  
  

Bifacial Panels: Maximizing Sunlight from Both Sides 

What makes them different? 

Unlike Mono PERC panels, Bifacial types of solar panels not only utilize the light on the front side, but also from the rear side which is possible because of their transparent or reflective back sheets. Accordingly, this feature allows them to catch the sunlight that is reflecting from the ground, and hence they produce more electricity. 

Why go bifacial? 

• Higher efficiency: The panels are approximately 30% more efficient than the ones traditionally used, dependent on the ground reflectivity factor though. 

• Ideal for open spaces: The ones that are designed for open spaces work very well at industrial and commercial locations with a higher light reflection. 

• Long-term gains: First the cost may be a bit higher, but the larger amount of energy produced leads to more profit over time.  

  
  

  

  
  

TopCon Panels: The future of solar efficiency 

What’s special about TopCon?

 The latest innovation in solar cell technology is the TopCon (Tunnel Oxide Passivated Contact) solar cell panels. They are engineered to ensure minimum electron losses, which makes them even more efficient than the Mono PERC monocrystalline solar cells. 

Why consider TopCon? 

• Improved efficiency: The range is from 24.5% to 25.0%, which makes it better than the PERC panels.  

• Best for the mega projects: It will be particularly suitable to boost space utilization by gaining more energy.  

• The next evolution: Likely to be the industry norm not many years from now. 

  
  

India’s Solar Push: Government policies & incentives

India is implementing stringent solar policies to reduce the need for imported products and to improve local production and manufacturing:  

• Local manufacturing mandate: By June 2026, the government is imposing a 100% domestic-content requirement for manufacturing activities at solar energy installations with locally made photovoltaic cells.  

• Subsidies & tax benefits: Government is encouraging people to go solar by offering subsidy up to INR 78,000. 

• Solar parks & infrastructure: Several large-scale solar projects are in progress to fast-track the adoption of solar energy across various industrial sectors. 

Why Karnataka Is Leading the Way in Solar Energy 

Karnataka is a major solar-friendly state in India that has come up with several initiatives to encourage renewable energy adoption.  

• Business-friendly policies  

• Karnataka’s Renewable Energy Policy (2022-27) is expected to produce 1,000 MW of grid-connected rooftop solar by 2027.  

• It gives investment subsidies, tax breaks, and other financial incentives to businesses that opt for solar systems.  

• Mega Solar Projects  

• Pavagada Solar Park (2,050 MW) is a major solar park in Asia, which also made Karnataka the leader of India in renewable energy expansion processes.  

• Financial Incentives for Investors  

• 100% stamp duty exemption for new solar projects.   

• Electricity duty exemption for 8 years to promote private-sector investment.  

  
  

  

  
  

Which Solar Panel Should You Choose? 

How Bifacial and TopCon are relatively new technologies that are still evolving. 

Among the most innovative types of solar panels available today, the Bifacial and TopCon panels have managed to mark a new trend in the global solar energy market that is characterized by better performance and more possibilities. While Bifacial panels exploit the technology of dual-sided capture of sunlight to increase power generation, and TopCon panels are working on the one hand with greater efficiency that is achieved through fewer electron losses, but these technologies are still at the growing phase, a stage where technological changes take place at breakneck speed besides quick market. Their fast growth is stimulated by continuous exploration of new technological developments and customer needs, the issue of further fast transition from them to other sources of energy is, thus, not to be underestimated. The transformation of both power and market in seeking better results is continuing as history shows and now increasing not only competences but performance is the major goal those technologies pursue as the routines shift throughout the work of programs still in the phase of improvisation and introduction and reveal the main option of a new paradigm in solar energy. 

Conclusion 

Looking for a budget-friendly and reliable choice? Well then, the Mono PERC panels are the best choice for you. The solar industry is getting a big boost in the country and the state policies in favor of renewables. You must take advantage of the situation to buy solar panels of high efficiency for your local solar factory. In this way, you can decide the technology that will suit your present situation and will provide the maximum savings and sustainability in the future.