TOPCon Solar Panel
N-Type Solar Module
Twisun Pro N-TOPCon 430W-460W 1/3-Cut N-TOPCon Full Black Bifacial Solar Module
Power: 430/435/440/445/450/455/460 WP
Efficiency: 21.5%-23.02%
Dimensions (L × W × H): 1762 x 1134 x 30mm
Packaging: 36 pieces/pallet, 936 pcs/40HQ
Datasheet: Download
Maysun VenuSun Plus N-TOPCon Solar Module 500W-525W MONO Half Cut PV Module
Power: 500w/505w/510w/515w/520w/525w
Efficiency: 22.11%-23.22%
Weight: 23.50 kg
Dimensions (L × W × H): 1944 x 1134 x 30mm
Packaging: 36 pieces/pallet, 792 pcs/40HQ
Datasheet: Download
TOPCon Solar Module (N-Type)
TOPCon solar cells utilize advanced Tunnel Oxide Passivated Contact (TOPCon) technology, which is developed based on the N-type silicon cell process. By forming a special tunnel oxide layer on the cell surface, the TOPCon technology significantly improves the open-circuit voltage (Voc) and photoelectric conversion efficiency of solar cells. This means that, compared to traditional Passivated Emitter and Rear Cell (PERC) technology, TOPCon solar panels can offer higher energy conversion efficiency, thereby generating more electricity in the same area.
High Conversion Efficiency
TOPCon technology enables solar panels to achieve a theoretical conversion efficiency of up to 28.7%, approaching the theoretical limit of crystalline silicon cells. This efficiency significantly exceeds that of traditional PERC technology panels, demonstrating its leading position in the field of energy conversion.
High Bifaciality
The optimized cell structure of TOPCon technology results in a bifaciality rate of over 85%, which is a significant improvement compared to PERC technology. This means that TOPCon solar panels can more effectively capture and utilize light, thereby generating more electricity.
Excellent Low-light Performance
Under low-light conditions, the power output of TOPCon cells is about 0.5-1.0% higher than that of PERC cells. This is due to their superior low-light response capability, allowing TOPCon cells to maintain a higher power output during cloudy days or at dusk.
Low Hot Spot Effect
TOPCon cells exhibit outstanding performance stability, with a reduced tendency to develop hot spots even under long-term outdoor operating conditions. This characteristic lowers maintenance costs and extends the lifespan of the panels.
Low Power Degradation
Thanks to the use of N-type cells, TOPCon solar panels have a first-year power degradation rate of only 1.5%, and after 25 years, the power output can still maintain 88.9% of the original capacity. This demonstrates the long-term reliability and stability of TOPCon panels.
No Light-Induced Degradation
The Light-Induced Degradation (LID) phenomenon is effectively avoided in TOPCon N-type crystalline silicon cells due to the extremely low boron content, which significantly weakens the effect of boron-oxygen pairs. This aspect is crucial for enhancing the long-term performance of the cells.
| Model | Bifacial Silver Frame 565-585W | Glass-Glass Silver Frame 560-580W | Glass-Glass Full Black 420-435W | |||
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| Condition | STC | NOCT | STC | NOCT | STC | NOCT |
| Peak Power Watts-PMAX (Wp)* | 565-585 | 425-440 | 560-580 | 421-436 | 420-435 | 316-327 |
| Maximum Power Voltage-VMPP (V) | 41,92-42,52 | 39,38-39,81 | 42,80-43,60 | 40,70-41,40 | 31,51-32,07 | 29,34-29,79 |
| Maximum Power Current-IMPP (A) | 13,48-13,76 | 10,79-11,05 | 13.08-13,30 | 10.36-10,53 | 13,33-13,57 | 10,76-10,98 |
| Open Circuit Voltage-VOC (V) | 50,60-51,16 | 48,06-48,60 | 50,60-51,40 | 48,10-48,80 | 38,11-38,68 | 36,20-36,74 |
| Short Circuit Current-ISC (A) | 14,23-14,55 | 11,49-11,75 | 13,90-14,14 | 11,22-11,42 | 14,07-14,31 | 11,36-11,55 |
| Module Efficiency ηm (%) | 21,86-22,64 | / | 21,67-22,44 | / | 21,51-22,28 | / |
| Weight (kg) | 29.0 kg | 32.0 kg | 24.0 kg | |||
| Module Dimensions (mm) | 2279 × 1134 × 30 mm | 2279 × 1134 × 30 mm | 1722 × 1134 × 30 mm | |||
| Warranty (Years) | 15-Year Product Warranty 25-Year Power Warranty | 30-Year Product Warranty30-Year Power Warranty | 30-Year Product Warranty30-Year Power Warranty | |||
| Packaging | Modules per pallet: 37 piecesModules per 40' container: 740 pieces | Modules per pallet: 36 piecesModules per 40' container: 720 pieces | Modules per pallet: 36 piecesModules per 40' container: 936 pieces | |||
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Comparison of PERC and TOPCon Technology
| TOPCON | PERC | |
|---|---|---|
| Appearance | Standard | Standard |
| Performance degradation in the first year | 1.5% | 2% |
| Average annual power degradation After the first year | 0.4% | 0.45% |
| Efficiency | 22.28% | 21.2% |
| Temperature coefficient | -0.32%/℃ | -0.35%/℃ |
Services from Maysun Solar
Maysun focuses on high-quality products and services for customers.
25/30 Year Warranties
Extended product and performance warranties
Europe-wide dealer network
Accessibility throughout Europe
Sufficient stock
Stable production and supply
Fast delivery
Timely delivery
Technical team for professional products
Keeping up with trends in PV technologies
Over 16 years of experience in the PV industry
Strong customer base
Industry-wide comprehensive technical manuals
Professional technical support
Certification by TÜV, CE, and fire protection
Strong customer base
Showcases of Solar Excellence
Exploring the Impact of TOPCon Solar Panels Through Real-World Applications
Frequently Asked Questions about the TOPCon Module
Discover More Information about TOPCon Technology
TOPCon (Tunnel Oxide Passivated Contact) and PERC (Passivated Emitter Rear Contact) cells both aim to enhance the efficiency of solar cells but employ different technological approaches. TOPCon technology significantly reduces charge recombination by creating a fine tunnel oxide layer on the cell surface, thereby improving the cell’s open-circuit voltage and overall conversion efficiency. In contrast, PERC technology enhances the cell’s light capture ability and reduces charge recombination by applying a passivation layer and a reflective layer on the back of the cell. Each technology has its merits, but TOPCon stands out with its higher efficiency and superior performance under low light conditions.
Absolutely. TOPCon cell technology, with its high efficiency and excellent low-light performance, is an ideal choice for commercial and industrial solar applications. Whether for large solar power plants, commercial building rooftops, or industrial facilities, TOPCon cells provide efficient and reliable energy solutions, optimize energy output, and ensure the economic benefits of long-term operation.
TOPCon technology significantly lowers the rate of charge recombination at the surface by forming an ultra-thin tunnel oxide layer on the surface of solar cells. This unique tunnel layer allows charges to flow freely while suppressing unnecessary charge recombination, thereby significantly enhancing the cell’s photoelectric conversion efficiency and performance.
TOPCon cells excel under low-light conditions, with their low dark current and high open-circuit voltage ensuring high efficiency even in environments with insufficient light, such as cloudy days, mornings, or evenings. This performance advantage makes TOPCon cells particularly suitable for areas with large variations in light, ensuring the stability and reliability of the energy supply.
TOPCon cells significantly enhance their thermal resistance through the use of optimized manufacturing processes. These process improvements ensure that the cells maintain high efficiency and stability even in high-temperature environments, thus guaranteeing the continuous high performance of the solar system in hot weather.
While any solar cell system is affected by shading to some extent, TOPCon cells exhibit excellent performance in mitigating shading effects due to their low surface recombination rate and efficient cell design. This allows TOPCon cells to maintain a higher power output even under partially shaded conditions, enhancing the system’s flexibility and reliability.
Understanding TOPCon Technology
Dive Deeper into the Expertise Behind TOPCon Technology
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