IBC Solar Panels: A Revolution in Solar Cell Efficiencyand Aesthetic Appeal

· Maysun Solar News,PV Industry News,About Solar Panels


  1. How do IBC Cells Work?
  2. What are the Benefits of IBC Solar Panels?
  3. What are the Application Scenarios for IBCSolar Panels?
  4. Why are IBC Solar Panels a Better ChoiceCompared to PERC and TOPCon?

In the ever-evolving world of solar power, the Interdigitated Back Contact (IBC) solar cell stands out as a symbol of cutting-edge innovation and high efficiency. As we explore the world of IBC solar panels, we discover the revolutionary concepts that position them as a powerful player in the quest for clean and sustainable energy. This piece delves into the technical aspects, benefits, and uses of IBC solar technology, illuminating its capacity to transform the landscape of solar energy.

How do IBC Cells Work?

The pinnacle of technology:

IBC (Interdigitated Back Contact) technology is a forefront tunneling method used extensively in the large-scale production of Photovoltaic (PV) solar panels. It offers unmatched benefits over its counterparts such as PERC (Passivated Emitter Rear Contact) and TOPCon (Tunnel Oxide Passivated Contact), placing IBC at the leading edge of third-generation cell technologies. This technology has evolved to a sophisticated level, positioning IBC solar panels as unique and superior products. IBC solar panels utilize advanced Interdigitated Back Contact technology, ingeniously positioning contacts on the back side to reduce shading and current loss, thereby achieving exceptional energy conversion efficiency.

The pinnacle of technology

Superior energy output:

IBC solar panels outperform other types in electricity production under comparable conditions, optimizing energy generation efficiency. The absence of front-side metal bus bars reduces light obstruction, expanding the light-receiving area by 2.5% and thus contributing to the unique high short-circuit current feature of IBC cells. IBC panels demonstrate a power generation capacity that is 5-8% greater than PERC and TOPCon cells, underlining their exceptional performance in power output.

Elegant design:

IBC solar panels incorporate a unique rear contact technology, presenting a sleek, high-end, and sophisticated all-black appearance. This design aligns well with the dark roofs commonly found in Europe, offering an improved aesthetic appeal. Visually, these panels outshine their PERC and TOPCon counterparts, adding an element of refined elegance to their surroundings.


Affordable cost:

IBC solar panels, by boosting energy conversion efficiency, enable the generation of more electricity in limited spaces, making them a cost-effective option in solar energy systems. Initially, IBC technology was synonymous with higher costs. However, the introduction of an advanced laser patterning technique, replacing the complex photolithography in the original IBC cells, has led to a significant cost reduction. Now priced comparably to TOPCon panels, IBC panels surpass them in power output and quality, strengthening their competitive edge in the market

Extended 25-year warranty:

IBC technology's design minimizes thermal and mechanical stress, often resulting in a prolonged warranty period, reflecting a commitment to durability and dependability. The choice of encapsulation materials in IBC cells is deliberate, focusing on high UV and aging resistance, as well as minimal water permeability. The TPE backsheet, layered with PVF (Tedlar) film and EPE modified adhesive film, passes stringent double-95 tests, ensuring a 25-year warranty.

Prevention of hot spots:

IBC solar panels effectively prevent hot spots on their surface, increasing system safety. The unique All Back Contact technology maintains normal current flow in both positive and negative metal electrodes on the back, even under shading. This reduces front-side resistance, thereby lessening hot spot formation on the panel and lowering operational risks in power plants.

Prevention of hot spots

Enhanced resilience to harsh weather:

IBC solar panels display strong resilience against harsh weather, proving stable and reliable in demanding environmental conditions. Their sophisticated All Back Contact design averts tensile damage and separation caused by the thermal expansion and contraction of the front welding strip under extreme temperature stress. This feature guarantees the solar panel's consistent and dependable power generation, even in challenging climates.

Enhanced resilience to harsh weather

Reduced glare and environmental impact:

IBC solar panels are specifically designed to minimize reflective issues, thereby lessening glare and light pollution in their vicinity. The front side of these solar panels is expertly crafted without a PV ribbon, effectively eliminating reflections caused by the silver PV ribbon. With an average reflectivity of only 1.7%, these solar panels significantly reduce their environmental footprint and decrease light pollution for nearby areas.

Reduced glare and environmental impact

What are the Application Scenarios for IBC Solar Panels?

IBC (Interdigitated Back Contact) solar panels, known for their flexibility, are ideal for a range of applications. Some typical uses include:

Residential Rooftops:

IBC panels are a popular choice for homes due to their high efficiency and attractive design. The lack of front-side metal busbars enhances their aesthetic appeal, making them a preferred option for residential installations.

Maysun Solar has effectively harnessed the benefits of IBC solar cells, delivering panels that boast high efficiency, pleasing aesthetics, and durability. Choosing Maysun Solar’s IBC panels can be a smart decision for those looking to maximize efficiency and longevity. An example of this is their 430W IBC full black solar panels, installed by a German partner for a residential client, showcasing their practical application and visual appeal. For further details, Maysun Solar provides more information upon request.


Commercial Buildings:

IBC panels are a popular choice for commercial buildings and offices, as they offer a cost-effective way to utilize solar energy. Their high efficiency and reliable performance make them an ideal solution for businesses looking to cut down on energy expenses.

Industrial Installations:

In industrial environments, IBC solar panels are highly valued for their sustainable and efficient energy generation. Their superior power generation efficiency is particularly advantageous for large-scale operations, meeting the substantial energy requirements typical of industrial facilities.

Industrial Installations

Ground-Mounted Solar Farms:

IBC solar panels are suitable for large-scale ground-mounted solar farms. Their advanced technology and high efficiency contribute to maximizing energy output in utility-scale installations. 

Why are IBC Solar Panels a Better Choice Compared to PERC and TOPCon?

In a comparison between IBC (Interdigitated Back Contact) solar panels and their counterparts, PERC (Passivated Emitter Rear Contact) and TOPCon (Tunnel Oxide Passivated Contact), there are distinct variations to note in areas like power generation efficiency, visual appeal, performance under low light, temperature coefficients, and the impact of hotspots. Here is a detailed breakdown of these comparisons:

Why are IBC Solar Panels a Better Choice Compared to PERC and TOPCon?

When comparing solar panels from the perspectives of Appearance, Power Degradation in the First Year, Average Annual Power Degradation, Efficiency, and Temperature Coefficient, it’s evident that IBC, TOPCon, and PERC exhibit distinctive characteristics.


The aesthetic distinctions between these solar panels are notable. IBC panels boast a distinctive look with no busbars on the front, offering a smooth and uninterrupted appearance. On the other hand, TOPCon and PERC panels follow conventional designs, featuring visible busbars, thus retaining a classic aesthetic.

Power Degradation

When it comes to the crucial factor of power degradation, IBC stands out for its consistently low performance decline. In the inaugural year, IBC, TOPCon, and PERC show similar results with a moderate degradation. Both IBC and TOPCon experience a minimal 1.5% reduction, while PERC lags slightly behind at 2%. Looking beyond the first year, the advantage of IBC becomes even clearer. IBC and TOPCon maintain a commendable annual degradation rate of just 0.4%, emphasizing their resilience and long-term efficiency. In contrast, PERC exhibits a slightly higher rate at 0.45%, signaling a slightly faster decline over time. Choose IBC for enduring performance and minimal power loss over the years.


Efficiency is an area where these solar panels notably differ. IBC solar panels showcase the highest efficiency range, varying from 22.5% to 23.2%. In comparison, TOPCon achieves an efficiency of 22.28%, while PERC lags behind with a lower efficiency of 21.2%.

Temperature Coefficient

The temperature coefficient is another parameter where distinctions emerge. IBC panels boast a lower temperature coefficient at -0.29%/℃, indicating a more stable performance in high-temperature conditions. In contrast, TOPCon and PERC have higher coefficients at -0.32%/℃ and -0.35%/℃, respectively, suggesting a relatively greater performance decline as temperatures rise. If you would like to learn more about Temperature Coefficient, click the button below to read Maysun Solar’s recent popular blog on Temperature Coefficient!

Maysun Solar has been specialising in producing high quality photovoltaic modules since 2008. Choose from our wide variety of full black, black frame, silver, and glass-glass solar panels that utilise half-cut, MBB, IBC, and Shingled technologies. These panels offer superior performance and stylish designs that seamlessly blend in with any building. Maysun Solar successfully established offices, warehouses, and long-term relationships with excellent installers in numerous countries! Please contact us for the latest solar panel quotations or any PV-related inquiries. We are excited to assist you.

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