MONO HJT 210mm 80 Cells
Representatives of high-efficiency solar modules
✓ Power Output: 410W 415W 420W 425W 430W
✓ Efficiency: 21.2-22.3%
✓ Dimensions (L × W × H): 1760 mm × 1098 mm × 30 mm
✓ Weight: 22 kg
✓ Packaging: 36 pcs/pallet, 936 pcs/40’HQ
✓ Warranty: 30-year product and performance guarantee
MONO HJT 210mm 80 Cells
High conversion rate and high power output solar modules
✓ Power Output: 410W, 415W, 420W, 425W, 430W
✓ Efficiency: 21.2-22.3%
✓ Dimensions (L × W × H): 1760 mm × 1098 mm × 30 mm
✓ Weight: 22 kg
✓ Packaging: 36 pcs/pallet, 936 pcs/40’HQ
✓ Warranty: 30-year product and performance guarantee
MONO HJT 210mm 132 Cells
High Bifaciality Solar Modules
✓ Power Output: 675W 680W 685W 690W 695W 700W 705W 710W
✓ Efficiency: 21.74%-22.87%
✓ Dimensions (L × W × H): 2383mm × 1303mm × 35mm
✓ Weight: 38.5 kg
✓ Packaging: 31 pcs/pallet, 558 pcs/40’HQ
✓ Warranty: 30-year product and performance guarantee
Heterojunction Technology (HJT) merges the best of both worlds: crystalline silicon’s robustness and amorphous silicon thin-film’s superior light absorption and passivation capabilities. Surpassing PERC technology in efficiency and performance, HJT stands at the forefront of solar innovation. It is recognized for elevating conversion rates and power output to unparalleled heights, marking it as a pinnacle of current solar advancements.
Advantages of HJT Solar Panel
Leveraging the cutting-edge HJT 210mm solar cells, these modules incorporate a TCO (Transparent Conductive Oxide) thin film that significantly enhances the passivation of interface defects between crystalline silicon and doped amorphous silicon. This innovative approach facilitates a photovoltaic conversion efficiency reaching up to an impressive 25%.
Featuring a symmetrical structure and an optimized conductive grid, HJT cells excel in power generation, achieving over 95% efficiency on the rear side. This state-of-the-art design markedly surpasses conventional PERC and TopCon technologies, delivering a substantial power generation boost of 10% to 35% from the rear side, enhancing overall performance and energy yield.
The unique composition of HJT cells, devoid of surface charging capabilities, effectively eliminates the occurrence of LID (Light degradation) and LeTID (Light and Elevated Temperature Induced Degradation) effects. This ensures the power generation capacity of heterojunction solar panels experiences minimal degradation—no more than 11.1% over a span of 30 years.
The TCO (Transparent Conductive Oxide) thin film, integral to HJT solar cells, showcases unique conductive properties that inhibit surface charge polarization, thereby inherently preventing PID (Potential-Induced Degradation). This structural advantage ensures the longevity and reliability of solar modules by safeguarding against performance degradation over time.
The introduction of additional and finer busbars reduces shading and shortens the path for current transfer, thereby decreasing resistance. This boosts current collection efficiency and enhances resilience against microcracks and busbar breaks.
Equipped with durable, weather-proof, corrosion-resistant, and wear-resistant double-sided glass and POE encapsulation, the HJT solar panels come with a comprehensive 30-year product and performance warranty, ensuring long-term reliability and customer satisfaction.
The distinct cell structure of HJT solar panels significantly boosts flexibility, mitigating the risk of microcracks during transport, installation, and operational processes. This contributes to the overall reliability of the solar system.
Utilizing silicon-based thin films for the p-n junction formation, HJT cells are processed at temperatures below 250 degrees Celsius. This minimizes thermal stress and heat-related damage, safeguarding cell integrity.
Heterojunction cells exhibit a significantly lower temperature coefficient (-0.24%/°C) compared to PERC and TopCon cells. This feature ensures more stable power output under high temperatures with reduced energy loss.
By employing a non-cutting approach to cell processing, which results in a complete half-cell configuration, the technology effectively minimizes the impact of microcracks and potential cell damage.
Featuring a symmetrical structure and an optimized conductive grid, HJT cells excel in power generation, achieving over 95% efficiency on the rear side. This state-of-the-art design markedly surpasses conventional PERC and TopCon technologies, delivering a substantial power generation boost of 10% to 35% from the rear side, enhancing overall performance and energy yield.
| HJT | TOPCON | PERC | |
|---|---|---|---|
| Bifacial Yield | 95% | 85% | 70% |
| Power Generation Efficiency | 22.87% | 22.28% | 21.2% |
| Initial Power Degradation in the First Year | 1% | 1.5% | 2% |
| Average Annual Power Degradation from the Second Year | 0.35% | 0.4% | 0.45% |
| Temperature Coefficient | -0.243%/°C | -0.32%/℃ | -0.35%/℃ |
A: The journey of HJT (Heterojunction Technology) began in 1974 when Waler Fuhs first introduced the concept, blending the strengths of amorphous silicon with crystalline silicon materials. This innovation marked the nascent phase of HJT cell development. In 1989, a significant breakthrough occurred when the Sanyo Group successfully developed HJT solar cells and secured a patent, achieving an initial efficiency of 15%. By 1997, Sanyo had not only trademarked HJT but also commenced the commercial distribution of photovoltaic modules, heralding the advent of HJT technology. The expiration of Panasonic’s patent protection for HJT cells post-2010 opened the doors for various manufacturers to enhance this technology. Consequently, HJT solar panels transitioned to industrial production, with efficiencies progressively increasing. Entering the commercial phase in 2017, the HJT sector saw an influx of companies initiating small-scale production. With growing production capacities exceeding 100 MW, the future of HJT cells shines brightly, promising further advancements.
A: HJT cells operate on a principle that involves depositing amorphous silicon onto an N-type silicon wafer substrate. This forms a heterojunction, acting as a passivation layer that significantly improves the cell’s open-circuit voltage and efficiency. Additionally, an external transparent conductive oxide (TCO) layer enhances the cell’s performance. The manufacturing process benefits from low-temperature techniques, typically using silver paste at around 200 degrees Celsius. This allows for the utilization of thinner N-type silicon wafers, presenting a considerable potential for cost reduction while maintaining high efficiency.
A: HJT solar cells are at the forefront of power generation technology, offering remarkable efficiency improvements and a clear pathway towards cost reduction. Their production process is notably streamlined, comprising primarily of texturing, amorphous silicon deposition, TCO (Transparent Conductive Oxide) layer deposition, and screen printing. This simplicity stands in stark contrast to the more complex steps required for PERC and TOPcon technologies. The symmetrical design of HJT cells makes them perfectly suited for bifacial power generation, ingeniously combining the best of crystalline silicon and thin-film technologies. Furthermore, the potential integration of perovskite layers could dramatically increase their conversion efficiency, setting a new standard in solar technology.