Bifacial Dual Glass

1. Product Overview

Our bifacial dual glass represents the pinnacle of innovation in photovoltaic (PV) module encapsulation, designed specifically for high-performance bifacial solar panels. This advanced glass solution features transparent front and rear glass layers, enabling solar cells to capture sunlight from both sides simultaneously. Unlike traditional monofacial modules, bifacial dual glass maximizes energy yield by harnessing reflected and diffused light, boosting overall efficiency by up to 30% in optimal conditions.

Crafted with premium low-iron tempered glass, our bifacial dual glass ensures exceptional light transmittance, mechanical strength, and resistance to environmental stressors. It is engineered for seamless integration into TOPCon, HJT, and PERC bifacial modules, supporting module power outputs exceeding 700W. Ideal for utility-scale projects, commercial installations, and residential rooftops, this product delivers long-term reliability with a proven lifespan of over 30 years.

The bifacial dual glass construction eliminates the need for polymer backsheets, reducing degradation risks from PID (Potential Induced Degradation) and light-induced degradation (LID). Its dual-glass design provides superior protection against moisture ingress, micro-cracks, and mechanical loads, making it a preferred choice for international solar developers seeking Tier 1 quality components.

2. Key Features

• High Bifaciality: Achieves up to 80-85% bifaciality factor, optimizing rear-side power generation from albedo reflection.
• Superior Transmittance: Front glass transmittance >91.5%, rear glass >92%, ensuring maximum photon capture.
• Enhanced Durability: Tempered glass with anti-reflection (AR) coating resists hail impacts up to 25mm diameter at 23m/s.
• Low Iron Composition: Minimizes light absorption, delivering crystal-clear transparency for higher module efficiency.
• UV Resistance: Blocks harmful UV rays, preventing yellowing and delamination over decades.
• Customizable Dimensions: Available in standard sizes for 182mm, 210mm, and 238mm cell formats.
• Recyclable Materials: Fully compliant with REACH and RoHS, supporting sustainable PV lifecycle management.
• Frame Compatibility: Optimized edge design for aluminum frame bonding, enhancing wind and snow load resistance.

3. Technical Specifications

Note: Specifications subject to customization based on module design. All data verified through third-party testing.

4. Application Scenarios

Bifacial dual glass excels in diverse solar deployment environments where maximizing energy harvest is paramount. In large-scale ground-mounted solar farms, its bifacial capability leverages ground albedo from white gravel or vegetation, increasing yield by 10-25% compared to monofacial alternatives. This makes it ideal for desert installations with high diffuse light or snowy regions where rear-side illumination from reflection enhances performance.

For commercial and industrial rooftops, bifacial dual glass modules withstand harsh urban conditions, including wind gusts and thermal cycling. The dual-glass barrier prevents backsheet failures, ensuring stable output in flat or tilted installations. Residential applications benefit from its sleek aesthetics and higher power density, fitting seamlessly into space-constrained setups like carports or agrivoltaic systems.

Off-grid and floating solar projects further showcase its versatility. On water bodies, bifacial dual glass captures water-reflected light, boosting efficiency by up to 20%. In agrivoltaics, it allows partial shading while generating power from both panel sides, promoting dual land use for farming and renewables.

5. Advantages

Opting for bifacial dual glass provides quantifiable advantages over conventional encapsulants. First, its glass-on-glass structure offers unmatched longevity, with first-year degradation below 1% and annual rates under 0.4%, surpassing backsheet-based modules. This translates to superior LCOE (Levelized Cost of Electricity) for investors.

Mechanically robust, it handles extreme loads—up to 5400Pa snow and 2400Pa wind—reducing microcrack risks and maintaining 92% output after 30 years. The AR-coated surfaces minimize soiling and reflection losses, while PID resistance ensures voltage stability in high-voltage strings.

Environmentally, bifacial dual glass supports circular economy principles with 100% recyclability, low embodied carbon, and no fluorinated polymers that contribute to HF emissions during decommissioning. Economically, higher bifacial gains enable fewer modules for the same capacity, cutting BOS (Balance of System) costs by 5-10%.

In performance testing, bifacial dual glass modules demonstrate 5-15% more energy production annually, verified by PVEL and RETC scorecards, positioning it as a future-proof choice for global PV expansion.

6. Why Choose Us

As a leading manufacturer of bifacial dual glass, we combine cutting-edge production technology with stringent quality controls. Our facilities employ automated coating lines and laser cutting for precision, achieving defect rates below 0.1%. Certified to IEC 61215/61730 and UL standards, every batch undergoes EL testing and spectral analysis.

With over a decade in PV glass, we supply Tier 1 module makers worldwide, backed by R&D partnerships with institutes like Fraunhofer ISE. Our supply chain ensures stable lead times and competitive pricing, with annual capacity exceeding 10GW. Choose us for reliability, innovation, and commitment to powering sustainable energy transitions.

7. FAQ

Q: What is bifacial dual glass?
A: Bifacial dual glass is a specialized PV glass with transparent layers on both front and rear sides, allowing bifacial solar cells to generate power from direct, reflected, and diffused light for enhanced efficiency.

Q: How does bifacial dual glass improve solar module performance?
A: It boosts energy yield by 10-30% through rear-side generation, reduces degradation, and provides better mechanical protection compared to backsheet modules.

Q: Is bifacial dual glass suitable for all cell technologies?
A: Yes, it is compatible with PERC, TOPCon, HJT, and back-contact cells, optimized for high-efficiency bifacial designs.

Q: What maintenance does bifacial dual glass require?
A: Minimal; its self-cleaning AR coating and robust build reduce soiling and extend cleaning intervals.

Q: Can bifacial dual glass withstand extreme weather?
A: Absolutely, certified for hail, high winds, snow loads, and salt mist corrosion per IEC standards.

Q: What are the warranty terms for bifacial dual glass?
A: Typically 30 years for light transmittance (>90% retention) and mechanical integrity, integrated into module warranties.

Q: How does it support sustainability?
A: Free of harmful chemicals, fully recyclable, and enables higher energy per module, lowering overall PV lifecycle emissions.