PERC

What is PERC Solar Panel Technology?

PERC Solar Cells Technology is Passivated Emitter and Rear Cell also goes by the term Passivated Emitter and Rear Contact. PERC Solar Cells Technology is a different architecture cell design that scientists used to get the most electrons out of a solar cell which can capture more sunlight that will lead to generating more power. The PERC architecture technology started in 1983 in Australia which made scientists believe that its efficiency can reach 25% which is a breakthrough in solar cell technology compared to all other solar cell types. However, it took till the 2000s to be optimized and used in commercial solar panels. Predicting that by 2026 PERC solar cells will have the highest market share.

Showing 1–30 of 1542 results

What are the advantages and disadvantages of PERC Solar panel Technology?

Advantages

  • 1-Energy Production: PERC Solar Panel Technology has a higher efficiency than all the other types which makes them exceed the 20% efficiency & get closer to 25% which is a huge breakthrough for the solar industry.
  • 2-Light & Heat: PERC Solar Panel Technology has the ability to withstand high heat which makes it suitable for all high-temperature areas. On the other hand, it can easily work in low-light conditions.

Disadvantages

  • 1-Lifetime: PERC Solar Panel Technology can drop down its efficiency within a three-year period making its lifetime questionable for long-term power-providing projects.
  • 2- Manufacturing Cost: PERC Solar Panel Technology has a higher cost of manufacturing than other solar cell types which makes it harder to spread in the market.

What are the use cases of PERC Solar Panel Technology?

  • 1-Small areas: PERC Solar Panel Technology is used in areas that have very limited space to install solar panels PERC Solar Panel Technology provides better energy output in a smaller space than all other types of solar panels in the market.
  • 2- Low Light Areas: PERC Solar Panel Technology can work with impressive output in places that lack huge amounts of strong sunlight making it a problem solver for all of the areas that have this situation.

 

What is a PERC Solar Panel?

  PERC, which stands for Passivated Emitter Rear Cell, is a groundbreaking technology that has significantly improved the efficiency and performance of solar panels. In this comprehensive guide, we will explore the advantages of PERC solar panels, delve into the techniques employed by solar manufacturers to incorporate this feature, discuss its various applications, and provide insights on how to determine whether a solar panel possesses this remarkable feature.  

Advantages of PERC Solar Panels

  PERC solar panels have rapidly gained popularity within the solar industry due to their remarkable advantages. These panels are designed to maximize the conversion of sunlight into electricity, providing a more efficient and cost-effective solution for both residential and commercial solar installations. Let's delve into some of the key benefits of PERC solar panels:  
  • Enhanced Efficiency: PERC technology significantly boosts the efficiency of solar panels. By optimizing the rear surface of the solar cell, it minimizes the rate of electron-hole recombination, resulting in a higher electricity conversion rate. This leads to increased energy production, making PERC panels an attractive option for areas with limited space or shading issues.
  • Improved Low-Light Performance: PERC solar panels exhibit excellent performance even in low-light conditions. This feature is particularly valuable in regions with variable weather patterns or where sunlight is limited during certain times of the day, such as early mornings or late afternoons.
  • Greater Durability: The passivation layer at the rear of PERC cells enhances the durability of the solar panel. It helps protect the cell against environmental factors, such as moisture and heat, prolonging the panel's lifespan and reducing maintenance costs.
  • Higher Energy Yield: PERC panels generate more electricity per square meter compared to traditional solar panels. This increased energy yield allows for the production of more energy within the same physical footprint, making them a preferred choice for maximizing power output in constrained spaces.
  • Reduced Levelized Cost of Electricity (LCOE): With their superior efficiency and long-term reliability, PERC solar panels contribute to a reduced LCOE. This translates to lower electricity costs for end-users over the system's lifetime, making solar power an even more economically attractive option.
 

Techniques Employed by Solar Manufacturers in Building PERC Solar Panels

  The incorporation of the PERC feature into solar panels is a complex and intricate process that involves precise engineering and cutting-edge technology. Solar manufacturers employ several techniques to build PERC solar panels, ensuring the best possible performance. Here are the key steps involved:  
  • Rear Surface Passivation: The heart of a PERC solar panel lies in its rear surface passivation. Solar manufacturers apply a passivation layer on the rear side of the cell to reduce electron-hole recombination, preventing the loss of energy. This passivation layer is typically made from silicon nitride (SiNx), which serves as an effective insulator.
  • Laser Ablation: To create a pattern on the rear side of the cell, manufacturers use laser ablation. This process involves selectively removing the passivation layer to expose the underlying silicon layer. The pattern is strategically designed to enhance electron collection and reduce the possibility of recombination.
  • Screen Printing: PERC cells often utilize advanced screen printing techniques for front contact formation. By precisely applying front contacts, solar manufacturers ensure optimal current collection from the front side of the cell.
  • Rear Contact Design: The design of rear contacts in PERC cells is critical for achieving high efficiency. The rear contacts help in efficient charge collection and electron transport. Advanced screen printing and metallization techniques are employed to create these contacts.
  • Passivated Emitter: The emitter is an essential part of the PERC solar cell structure. It is designed to passivate the surface and enhance the flow of electrons. By carefully engineering the passivated emitter, manufacturers can minimize recombination losses, ensuring higher efficiency.
  • Selectively Etched Back Surface Field: To further improve electron transport, a selectively etched back surface field is often incorporated. This feature allows for enhanced charge separation and collection, leading to improved overall performance.
 

Applications of PERC Solar Panels

  PERC solar panels have found a wide range of applications across the solar energy sector, making them a versatile choice for solar installers and project developers. Here are some of the key applications:  
  • Residential Solar Installations: PERC panels are well-suited for residential solar installations where space is often limited. Their higher efficiency allows homeowners to generate more electricity, maximizing the return on investment.
  • Commercial and Industrial Projects: PERC panels are commonly used in commercial and industrial solar projects, where a significant amount of energy is required. Their efficiency and low-light performance make them a reliable choice for such applications.
  • Utility-Scale Solar Farms: In utility-scale solar farms, where large expanses of land are covered with solar panels, PERC technology helps increase energy production within the available space. This is especially valuable in regions with high energy demand.
  • Off-Grid and Remote Applications: PERC panels are suitable for off-grid and remote applications, such as powering remote telecommunication towers, water pumps, and other critical infrastructure in areas without access to the grid.
  • Solar Carports and BIPV (Building-Integrated Photovoltaics): PERC panels are also used in solar carports and BIPV systems. Their higher efficiency allows for more power generation in these specialized installations.
 

How to Check Whether a Solar Panel has the PERC Feature

  Identifying whether a solar panel incorporates the PERC feature is crucial for solar installers, procurement managers, and EPC professionals. Here are several methods to determine whether a solar panel is equipped with PERC technology:  
  • Manufacturer's Documentation: The most straightforward way to confirm if a solar panel features PERC technology is by referring to the manufacturer's documentation. Solar panel manufacturers typically provide detailed specifications for their products, including information about the technology used. Look for mentions of "PERC" or "Passivated Emitter Rear Cell" in the product specifications.
  • Physical Inspection: During the physical inspection of a solar panel, you can check for specific design features that are indicative of PERC technology. Look for a passivation layer on the rear side of the cell, as well as laser-ablated patterns. The presence of these features suggests that the panel is likely a PERC solar panel.
  • Online Databases: Some online databases and tools allow you to search for information about solar panels based on their make and model. These databases may provide details about the technology used in the panels, helping you confirm whether they are PERC panels.
  • Consult with the Manufacturer: If you have any doubts or need further clarification, don't hesitate to reach out to the manufacturer directly. They can provide you with accurate information about the specific features of their solar panels.
  • Consult with Industry Experts: Engaging with experts in the solar industry, such as solar engineers or consultants, can be valuable when verifying the features of a solar panel. They can provide insights and guidance on identifying PERC panels.
  In conclusion, PERC solar panels have revolutionized the solar industry by offering enhanced efficiency, improved low-light performance, and increased durability. Understanding the advantages of PERC panels, the techniques used in their manufacturing, their various applications, and how to identify them is crucial for solar installers, procurement managers, and EPC professionals. Incorporating PERC technology into your solar projects can lead to more reliable and cost-effective solar power generation, ensuring a sustainable and efficient energy future.