In the ever-evolving world of solar energy, the choice of solar modules plays a pivotal role in effectively harnessing the sun’s power. Two contenders stand out among the myriad options available: Double Glass Modules and Transparent TPT Modules.
Each has its unique set of advantages and disadvantages, and understanding these distinctions can significantly impact your solar energy strategy.

Advantages of Double Glass Modules:
- Enhanced Mechanical Resistance: Double glass modules shine in the realm of durability. They exhibit higher mechanical resistance when subjected to frontside and backside loads. This robustness ensures their longevity and ability to withstand environmental challenges.
- Superior Fire Resistance: Safety is paramount in solar installations, and double glass modules excel in this regard. Their fire resistance significantly surpasses that of plastic back sheet modules, adding an extra layer of security to your solar system.
- Optimized Power Gain: Transparency matters in the world of solar modules. Glass boasts a higher transmittance rate than plastic, meaning that double glass modules capture more backside power (around 94% for double glass versus 89% for transparent TPT). This optimized power gain translates to increased energy production.
- Higher Overall Efficiency: The synergy between higher transmittance and better power gain results in superior overall module efficiency. Double glass modules maximize energy conversion, making them an efficient choice for solar energy projects.
- Long-term Performance: Sustainability is a critical factor in solar energy investments. Double glass modules maintain their performance over the long haul. This reliability is underscored by the industry’s confidence, as evidenced by the 30-year performance REAL warranty. In contrast, the transmittance of plastic transparent back sheets tends to degrade over time, while the glass remains unchanged.
Disadvantages of Double Glass Modules:
- Weightier Modules: If there’s a downside to double glass modules, it’s their weight. They are typically heavier compared to their transparent TPT counterparts. This might affect installation logistics and structural considerations.
- Higher Price Tag: Quality often comes at a premium, and double glass modules are no exception. They tend to have a higher price point than transparent TPT modules. While the initial investment may be greater, the long-term benefits can often outweigh the upfront cost.
The choice between double glass modules and transparent TPT modules ultimately boils down to your specific project requirements and priorities.
While double glass modules offer enhanced durability, fire resistance, efficiency, and long-term performance, they come with a slightly heavier weight and a higher price tag.
Transparent TPT modules, on the other hand, maybe a more cost-effective option upfront, but they may lack the long-term performance and robustness of double-glass modules.
Ultimately, the ideal choice hinges on striking the right balance between your budget, project goals, and long-term sustainability.
As the solar industry continues to innovate, both options promise a greener, more sustainable future powered by the sun.
Projects using EGE Atlas Double-Glass


Eco Green Energy is dedicated to helping you navigate these choices and tailor your solar solutions to meet your unique needs. Contact us to explore the best solar module options for your project.