Choose Smart: Differences Between PERC and N-Type
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In the world of solar energy, choosing the right technology can mean the difference between an efficient system and one that doesn't maximize its potential. When evaluating solar panels, it's essential to understand the differences between two key technologies: PERC (Passivated Emitter and Rear Cell) and N-Type . Both offer unique advantages but vary in aspects such as efficiency, durability, and adaptability to extreme conditions. Here, we explain their characteristics to help you make an informed decision.
What is PERC technology?
PERC technology uses boron-doped silicon (P-type) , which generates positive electron holes. Although it is a proven and widely used technology, it has certain limitations that are important to consider:
- Efficiency: Offers 19% to 22% efficiency, suitable for standard direct light conditions.
- LID (Light-Induced Degradation): It is susceptible to an initial loss of performance caused by the interaction between boron and oxygen.
- Cost-Performance: It is the dominant technology due to its balance between cost and performance, ideal for projects that prioritize economic accessibility.
- Innovation: It integrates a rear passivated layer that improves the bending of unabsorbed light, representing an evolution in P-type cells.
Why choose N-Type technology?
N-Type technology panels are designed with phosphorus-doped silicon (N-Type) , which generates an excess of electrons, improving efficiency and reducing losses. This technology is more advanced and offers significant benefits:
- Higher Efficiency: Can achieve efficiencies of up to 25% , depending on the design (such as TOPCon, HJC and IBC).
- PID (Potential Induced Degradation) resistance: It is ideal for installations in humid or saline environments, thanks to its greater resistance.
- Warm Climates: Its lower thermal coefficient makes it more efficient in regions with high temperatures.
- Long-Term Investment: Thanks to its superior performance and durability, it represents a solid option for those looking to optimize their return on investment.
- Technological Advances: Includes innovations such as TOPCon , which improves passivation and electrical conduction, taking efficiency to a new level.
Comparison: PERC vs. N-Type
| Characteristics | PERC | N-Type |
|---|---|---|
| Doped Material | P-type silicon (boron) | N-type silicon (phosphorus) |
| Maximum Efficiency | 19% - 22% | Up to 25% |
| PID resistance | Low | High |
| Heat Performance | Lower efficiency in hot climates | More efficient in hot climates |
| Durability | Adequate | Elderly |
| Initial Cost | More accessible | Bigger investment, but with better ROI |
Which one to choose for your project?
If you're looking for a cost-effective, standard solution, PERC may be the right choice. However, if you prioritize efficiency, durability, and performance in challenging conditions, N-Type technology is the smart choice.
At Corey Solar , we offer both technologies so you can find the perfect solution for your needs. Our mission is to ensure every customer gets the most out of their solar energy investment, contributing to the development of sustainable and profitable projects.
Are you ready to take your solar installation to the next level? Contact us and discover how our solutions can transform your project.