Highly durable, low-iron tempered glass with excellent light transmittance for efficient solar energy capture
Solar glass is a specialized low-iron, tempered soda-lime silicate glass, often enhanced with an anti-reflective coating. This combination delivers ultra-high light transmittance, superior mechanical strength, long-term durability, and excellent environmental resistance, making it the critical transparent shield that enables efficient and reliable solar energy capture over decades.
Solar glass is an essential part of solar modules, providing the following key functions:
① Light Transmittance:
Solar glass features high light transmittance (typically >91%), maximizing sunlight delivery to PV cells, thereby enhancing power generation efficiency.
② Protection:
It serves as a shield of PV cells against environmental damages (e.g., sandstorms, rain, UV radiation, etc.), significantly extending the lifespan of solar modules.
③ Mechanical Strength:
With superior mechanical strength, it withstands external impacts and ensures structural stability during installation and operation.
④ Electrical Insulation:
Its excellent insulation properties prevent current leakage, enhancing the safety during operations.
Solar glass plays a vital role in enhancing solar module performance in three aspects:
① Power Generation Efficiency:
High-transmittance glass reduces light reflection and absorption, allowing more sunlight to reach the PV cells, which increases energy yield.
② Service Life:
Premium solar glass protects PV cells from corrosion and degradation caused by environmental factors, which extends the lifespan of solar modules.
③ Safety:
Excellent insulation and mechanical strength of solar glass ensure reliable performance under extreme weather conditions (e.g., hail, high winds), which reduces the risk of failures.
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AR Coating Glass | ||
Thickness | 1.6 mm/2.0 mm/3.2 mm | |
Thickness (Tolerance) | 2.0 mm/3.2 mm: ±0.2 mm; 1.6 mm: -0.1mm, 0.2 mm | |
Maximum Size | 1400*2500 mm | |
Solar Transmittance | Annealing Glass Transmittance | ≥91.8% |
AR Coating Transmittance | ≥93.8% | |
HTAR Coating Transmittance | ≥94.2% | |
Ultra-HTAR Coating Transmittance | ≥94.5% | |
Back Glass with Printing | |
Thickness | 1.6mm/2.0mm |
Thickness (Tolerance) | 2.0mm: ±0.2mm; 1.6mm: -0.1mm, 0.2mm |
Maximum Size | 1400*2500mm |
Hole Diameter | 6-40mm |
White Printing Reflectivity | ≥75% |
Black Printing Reflectivity | ≤10% |
Adhesion | ≤1class |
Pencil Hardness Test | ≥3H |
Reliability Test | Reflectivity Variation ≤3% |
Production Base | Furnace Qty | Furnace Melting Capacity(Ton/Day) | Production Capacity (Million SQM/Month) | Production Capacity (GW/Year) |
Anhui Chuzhou | 4 | 4,800 | 24 | 32 |
Guangxi Beihai | 2 | 2,400 | 12 | 16 |
Hubei Xianning | 1 | 1,200 | 6 | 8 |
Guangdong Dongguan | 1 | 800 | 4 | 4.5 |
Jiangsu Wujiang | 1 | 800 | 4 | 4.5 |
Total | 9 | 10,000 | 50 | 65 |
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