What are TopCon solar modules and what are the advantages? - Top ten 'search and wanted' tips for photovoltaics / pv modules

The world of renewable energies is constantly evolving, and one of the technologies that has gained importance in recent years is TOPCon solar modules. The acronym “TOPCon” stands for “Tunnel Oxide Passivated Contact.” But what exactly does that mean, and what advantages does this technology offer?

🌞 TOPCon solar modules are an advancement of conventional silicon solar cells. This technology was developed to increase the efficiency of solar cells. In conventional solar cells, a significant portion of the energy is lost in the form of electrical losses. TOPCon technology minimizes these losses by using a special passivated contact layer that allows electrons to flow more easily through the module.

⭐ Advantages of TOPCon solar modules

1. 💡 Higher efficiency

One of the biggest advantages of TOPCon solar modules is their high efficiency. Thanks to their special contact layer, these modules can convert more sunlight into electrical energy than conventional silicon solar cells. This means they are able to generate more electricity, even when they occupy the same area as conventional modules.

2. 🕰️ Longer lifespan

TOPCon modules are not only more efficient, but also more durable. Because they are less susceptible to losses and degradation, they can deliver consistently high performance over longer periods.

3. 🛠️ Less maintenance

Thanks to their robust construction and efficient design, TOPCon modules require less maintenance than conventional solar cells. This reduces the overall costs for solar energy system owners.

4. 🌡️ Improved temperature performance

Another advantage of these modules is their ability to operate efficiently even at high temperatures. While conventional solar cells lose efficiency at high temperatures, TOPCon modules can deliver consistently high performance even in hot climates.

5. 🛠️ Flexibility during installation

Due to their high efficiency and compactness, TOPCon modules can be used in a wide variety of applications, from large solar parks to small roof installations.

🌱 TOPCon solar modules represent an advanced technology in the world of renewable energy. With their high efficiency, durability, and flexibility, they offer significant advantages for both businesses and homes. This technology is expected to gain further importance in the coming years as the world continues to focus on the transition to clean and renewable energy.

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Solarwatt module production facility F8 in Dresden – Image: Solarwatt

Solarwatt, a leading company in the field of solar sector coupling, is expanding its product portfolio with solar modules based on the advanced TOPCon cell technology. Starting at the end of October, Solarwatt installation partners can order these innovative glass-glass and glass-foil modules from the SOLARWATT Pro Shop, with deliveries beginning in January 2024. Dr. Armin Froitzheim, CTO of Solarwatt, emphasizes the high quality and efficiency standards the company strives for. He describes TOPCon as a future-oriented technology that seamlessly integrates into Solarwatt's high-quality product range. Originally developed by scientists at the Fraunhofer Institute for Solar Energy Systems ISE in Freiburg, the TOPCon technology is now on the verge of a global breakthrough.

🚀☀️ TOPCon: A game-changer for the solar industry

While the solar industry currently primarily uses PERC modules with p-type cells, TOPCon modules utilize n-type cells. These enable higher power output on the same surface area, significantly increasing the overall efficiency of the solar energy system. This technology offers considerable advantages, especially for homeowners with limited roof space, as they can generate more energy without requiring additional space. This increased efficiency is a strong selling point for installation companies. Furthermore, TOPCon solar cells exhibit lower degradation over time, extending the modules' lifespan. 💡

🌟🏢 More than just efficiency: The advantages of TOPCon

TOPCon solar modules are not only more efficient, but also more robust and durable. Thanks to the lower cell degradation rate, these modules can deliver consistently high performance for many years. This is particularly important for commercial applications where the reliability and consistency of energy generation are critical factors.

🏞️☀️ Flexibility and scalability: TOPCon in practice

The high power density of TOPCon modules makes them attractive for projects that require flexibility and scalability. Whether in large-scale solar parks or complex urban environments, the possibilities are virtually limitless. This opens up new horizons for the use of renewable energies.

🔄🌞 Integration into existing systems

One of the outstanding features of TOPCon technology is its high compatibility with existing solar energy systems. This means that homeowners or businesses already using solar panels can easily switch to TOPCon or expand their existing systems with it. This enables a sustainable upgrade of solar installations and contributes to the spread of clean energy.

🌐🌱 The role of Solarwatt

As a premium provider of solar solutions, Solarwatt sees the introduction of the TOPCon modules as a strategic step to maintain its market leadership in this rapidly developing sector. With outputs starting at 420 watts peak (Wp), these modules are aimed at discerning customers seeking the latest and most powerful technology. Solarwatt is thus making a significant contribution to advancing the energy transition and opening up new perspectives for the use of renewable energies.

💰👷‍♂️ Economic prospects

The introduction of TOPCon modules will also have positive economic effects. Higher efficiency and lower operating costs will allow for a faster return on investment, making the technology attractive even to price-conscious customers. This will promote the widespread acceptance of solar energy and contribute to job creation in the solar industry.

🌞💡💰👷‍♂️ Further development in the solar industry

The introduction of TOPCon modules by Solarwatt is a significant step in the further development of the solar industry. With higher efficiency, flexibility, and durability, these modules offer considerable advantages for both residential and commercial applications. It is only a matter of time before TOPCon replaces the current standard, PERC modules, as the dominant technology in this sector. The future of solar energy looks promising, and Solarwatt is helping to make it a reality.

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PERC vs. TOPCon solar cell technology in comparison – Image: Xpert.Digital / Iaremenko Sergii|Shutterstock.com

We reported on this a year ago: “Although the performance of TOPCon solar cells is hard to beat, PERC technology still dominates the market. This is likely to remain the case for some time due to the continued increase in cell efficiency and simultaneously decreasing production costs.”

More about it here:

• PERC or TOPCon? A preliminary conclusion

🔍 Solarwatt's renewal and extension of its warranty periods marks an important milestone in the solar industry. This commitment demonstrates the company's confidence in its products and its commitment to customer satisfaction.

🌟 Solarwatt's glass-glass modules, equipped with advanced TOPCon cells, are a prime example of innovative solar technology. As bifacial half-cell modules, they are available in two compelling versions: style with a power output of 420 Wp and pure, which offers 425 Wp. A special feature of these modules is their robust 35mm aluminum frame, which provides added stability and durability.

🏢 Solarwatt, the solar company based in Dresden, is known for its high-quality products and excellent customer service. A testament to this is the impressive 30-year product and performance warranty the company offers for its double-glass modules. This not only underscores the quality and reliability of the products but also provides customers with added peace of mind. As an additional bonus, Solarwatt offers SOLARWATT Complete Protection, a free all-risk insurance policy that further minimizes the investment risk for customers.

🌆 In addition to glass-glass modules, Solarwatt also offers TOPCon half-cell modules in a glass-foil design. These are available in black and pure versions, both with power outputs starting at 420 Wp and 425 Wp, respectively. Like their glass-glass counterparts, these modules also feature the robust 35mm aluminum frame. However, there is a difference in the warranty terms: The product warranty for these modules is 20 years, while the performance warranty is 25 years.

🗣 Dr. Froitzheim, a leading expert and representative of Solarwatt, emphasizes the company's recent progress regarding warranty periods: "We have significantly increased our warranty periods for glass-foil modules once again. This puts us well above the market standard." This statement demonstrates Solarwatt's ongoing commitment to exceeding customer expectations and positioning itself as an industry leader.

📦 It's also important to emphasize that longer warranty periods don't just benefit the end consumer. They reflect the manufacturer's confidence in the quality of their products. When a company is willing to offer such a long-term warranty, it speaks volumes about their production standards, quality assurance procedures, and overall confidence in the durability and performance of their products.

☀️ Warranties are crucial in the solar industry. They offer not only protection but also peace of mind for the consumer. Solarwatt has set the standard with its new warranty policy, demonstrating how much they value their customers and the quality of their products.

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The solar system planner for the most common applications: Plan the solar system online here - Image: Xpert.Digital

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