Glass-glass modules - Robust and durable solution for solar systems

Glass-glass modules are an innovative choice for solar installations that require maximum durability and performance. Unlike conventional glass-foil modules, they have a double layer of glass that protects both the front and the back. This design increases resistance to mechanical stress, weathering and extreme temperatures. Glass-glass modules also offer a longer service life and are an ideal solution for demanding projects where reliability and efficiency are paramount.

Leading manufacturers of glass-glass modules

JA Solar offers state-of-the-art glass-glass modules with exceptional durability and high performance. The company is setting new standards in photovoltaics with innovative technologies. Trina Solar is known for its reliable glass-glass modules, which offer excellent energy yield and robust construction. They are ideal for large and small projects alike. Jinko Solar is also one of the leading manufacturers in this field and offers glass-glass modules that are characterized by durability and high efficiency.

glass-glass modules are the perfect choice for solar installations where quality, performance and durability are crucial - whether for residential, commercial or industrial applications.
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What are glass-glass modules?

Glass-glass modules are solar modules with a protective glass layer on both the front and back. This design ensures increased stability and durability compared to conventional glass-foil modules. The double layer of glass effectively protects the solar cells from environmental influences such as moisture, mechanical stress and extreme temperatures, making them particularly robust and low-maintenance.

How do glass-glass solar modules work?

The solar cells are embedded between two layers of special glass. This construction ensures improved mechanical stability and minimizes the risk of micro-cracks that could impair the performance of the modules. At the same time, higher light transmittance and improved protection against environmental influences are guaranteed, allowing the modules to work reliably even in demanding environments.

Glass Glass Modules Advantages

Greater durability
  •  Glass-glass modules offer exceptional durability, as the double layer of glass protects the solar modules from external influences such as moisture, UV radiation and temperature fluctuations. As a result, they have a longer service life than glass-foil modules.
Better stability and protection
  •  The robust construction makes glass-glass modules more resistant to mechanical stresses such as snow and wind loads. This is particularly advantageous for installations in regions with extreme weather conditions.
Less degradation
  •  The glass protection on both sides means that the performance of the modules is better maintained in the long term. They exhibit less potential-induced degradation (PID) and are less susceptible to moisture and microcracks.
Improved energy yields
  •  Thanks to their high light transmittance and the ability to generate energy on the rear side (with bifacial glass-glass modules), these modules can increase the energy yield, especially on reflective surfaces.
Higher fire and safety rating
  •  Due to their design, glass-glass modules offer a higher fire safety rating and are more resistant to flammability, which is an advantage in sensitive installations such as public buildings.
Bifacial use option
  •  Many glass-glass modules are bifacial, which means that they can generate electricity on both the front and the back. This means that more energy is produced, especially when the system is optimally aligned.
Environmental friendliness
  •  As glass is more durable and easier to recycle than plastic film, glass-glass modules are more environmentally friendly and sustainable to dispose of.
Longer guarantees
  •  Manufacturers often offer longer product and performance guarantees for glass-glass modules, sometimes up to 30 years, which increases investment security.
Optical advantages
  •  Glass-glass modules have a more attractive appearance due to their high-quality finish and uniform surface and are well suited to applications where design is important, such as integrated solar façades or carports.
These advantages make glass-glass modules ideal for demanding applications and long-lasting solar systems where high performance and durability are paramount.

Disadvantages of glass-glass modules

Higher acquisition costs
  •  Glass-glass modules are generally more expensive than conventional glass-foil modules. The additional material and manufacturing costs are reflected in the purchase price, which makes them less attractive, especially for projects with a limited budget.
Increased weight
  •  Due to the double layer of glass, glass-glass modules are heavier than glass-foil modules. This requires a more stable substructure and can make installation more difficult, especially on roofs with limited load-bearing capacity.
More complex installation
  •  The additional weight and increased risk of breakage if handled incorrectly make the installation of glass-glass modules more challenging and time-consuming. This can lead to higher installation costs.
Sensitivity during transportation and storage
  •  Despite their robustness in use, glass-glass modules can be more sensitive to mechanical impacts during transportation or storage, as glass is less flexible and can break under strong pressure.
Lower availability
  •  Compared to conventional modules, glass-glass modules are less common and not available in as many variants. This could limit the choice, especially if there are specific requirements.
Limited flexibility
  •  Glass-glass modules are less flexible and therefore not suitable for all types of mounting systems or specific applications, such as curved roof surfaces.
Despite these disadvantages, the advantages often outweigh the disadvantages in long-term use, especially in terms of durability and resistance, making glass-glass modules a sensible investment for high-quality solar installations.

Leading manufacturers of glass solar modules on SolarTraders

  • JA Solar offers high-quality glass-glass modules that impress with their excellent durability and high energy yields. Their bifacial modules make optimal use of the rear side for additional energy production, making them ideal for demanding solar installations.
  • Trina Solar is known for its innovative glass-glass modules, which use the latest technology to ensure high efficiency and long-term reliability. They are frequently used in large solar parks in particular thanks to their robust construction and high load-bearing capacity.
  • Jinko Solar supplies high-performance glass-glass modules that are valued for their durability and resilience. With its bifacial models, Jinko Solar offers an excellent choice for projects that require maximum energy yields and low degradation rates.
  • Aiko Solar has established itself as one of the leading manufacturers of solar cells and also offers glass-glass modules that impress with their high quality and efficiency. With advanced cell technology and a focus on maximizing yields, Aiko's products are particularly suitable for high-end installations.
  • Canadian Solar scores with glass-glass modules that are known for their stability and consistent performance over decades. Their innovative cell technology and optimized design make them ideal for ground-mounted systems and projects with high demands on durability and energy yield.

These manufacturers stand for quality, innovation and reliability and offer a wide selection of glass-glass modules on SolarTraders that are suitable for a wide range of applications.


Find out more about bifacial solar modules and all-black solar modules

Bifacial solar modules use both the front and back of the module to absorb sunlight, which increases energy production, especially on reflective surfaces. This technology ensures higher efficiency and is particularly advantageous for large solar installations or in regions with a lot of scattered light.
All-Black solar modules impress with their modern, black design, which integrates perfectly into the architecture of residential buildings or commercial installations. They offer the same performance as conventional modules, but combine aesthetics with efficiency and are ideal for applications where both performance and appearance are crucial.

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