Xiamen D.T. Multi Tech Co., Ltd. is one of the most reliable manufacturers and suppliers of solar double glass in China. With abundant experience, we warmly welcome you to wholesale cheap solar double glass from our factory. If you have any enquiry about cooperation, please feel free to email us.
High-Efficiency N-Type Bifacial Modules 630W
As a premier provider of integrated PV solutions, we introduce the DT66D45 series, a pinnacle of N-type solar double glass technology. Designed specifically for utility-scale projects and high-yield commercial installations, these bifacial modules redefine the standards of energy density and long-term reliability.
Superior Power Generation with N-Type Technology
The shift to N-type double glass represents the most significant leap in solar ROI. Unlike traditional P-type cells, our N-type mono cells are immune to Light Induced Degradation (LID), ensuring your investment maintains peak performance from year 1 to year 30.
- Maximum Efficiency: Achieve up to 23.3% module efficiency, allowing for higher power density in constrained spaces.
- Bifacial Advantage: With a bifaciality of 80% ± 5%, these modules capture sunlight from both sides. When installed on high-albedo surfaces like white gravel or snow, the solar double glass construction can boost total energy yield by up to 25%.
- Optimized Temperature Coefficient: A low Pmax temperature coefficient of -0.290%/°C ensures superior performance in hot climates, such as Southeast Asia and Middle Eastern desert environments.
OPERATING CONDITIONS
| Maximum System Voltage | 1500V DC |
| Operating Temperature | -40°C~+85°C |
| Maximum Series Fuse Rating | 35A |
| Maximum Static Load, Front* | 5400Pa(112 lb/ft²) |
| Maximum Static Load, Back* | 2400Pa(50 lb/ft²) |
| NOCT | 45±2°C |
| Bifaciality | 80%±5% |
| Safety Class | Class II |
| Fire Performance | UL Type 29/Class C |
ELECTRICAL PARAMETERS AT STC
| TYPE | DT66D45 -630/LB |
| Rated Maximum Power(Pmax) [W] | 630 |
| Open Circuit Voltage (Voc) [V] | 48.9 |
| Maximum Power Voltage(Vmp) [V] | 40.7 |
| Short Circuit Current(Isc) [A] | 16.18 |
| Maximum Power Current(Imp) [A] | 15.48 |
| Module Efficiency [%] | 23.3 |
| Power Tolerance | 0~+3% |
| Temperature Coefficient of Isc/α_Isc) | +0.045%/°C |
| Temperature Coefficient of Voc (β_Voc) | -0.250%/°C |
| Temperature Coefficient of Pmax(y_Pmp) | -0.290%/°C |
| STC | Irradiance 1000W/m², cell temperature 25°C, AM1.5G |
30-Year Linear Power Warranty
In the world of solar investment, the most critical metric for success is the Levelized Cost of Energy (LCOE). While the industry standard often settles at 25 years, our N-type Bifacial Double Glass modules come with an industry-leading 30-year linear power output warranty. This is not just a quality claim-it is a financial guarantee for your project's long-term bankability.
Why This Warranty Matters for Your Project:
- Minimal Degradation, Maximum Yield: Leveraging the inherent advantages of N-type silicon, these modules exhibit a first-year degradation of ≤1%, followed by a remarkably low annual decline of just 0.4%. By year 25, our modules maintain 87.4% of their original power output-a +6.3% performance gain over standard P-type modules.
- Double Glass Physical Shielding: The symmetric 2.0mm + 2.0mm dual-glass construction acts as an impermeable barrier against moisture and salt mist. This physical design virtually eliminates PID (Potential Induced Degradation) and micro-cracking, ensuring the power curve remains stable even in harsh environments like coastal areas or high-humidity tropical regions.
- Extended Asset Valuation: For EPC contractors and project developers, the extra 5 years of guaranteed performance (from year 25 to 30) represents pure profit. This extension significantly lowers the LCOE and boosts the Internal Rate of Return (IRR), making the project more attractive to Tier-1 financiers and long-term asset owners.
By securing a 30-year performance horizon, we ensure that your solar installation remains a high-yielding "blue-chip" asset, delivering reliable green energy and consistent cash flow through the middle of the 21st century.
FAQ
Q: How does the 2.0mm+2.0mm double-glass structure handle mechanical stress?
A: The symmetric dual-glass design provides superior structural integrity. It is certified for a 5400Pa front load (snow) and 2400Pa rear load (wind). The glass encapsulation also offers 100% protection against moisture ingress, preventing PID (Potential Induced Degradation).
Q: What are the terms of your linear power warranty?
A: We provide a 30-year linear power warranty. We guarantee a first-year degradation of ≤1% and an annual linear degradation of no more than 0.4% for the following 29 years, ensuring 87.4% of rated power at year 25.
Q: Can I customize the cable length for tracker-based installations?
A: Yes. While our standard landscape cable is 1400mm, we offer customized cable lengths and frame colors upon request to ensure perfect compatibility with various tracking systems (like Nextracker) or fixed-tilt structures.
Q: How does the module perform under low-irradiance conditions (cloudy days)?
A: N-type technology has a superior spectral response. Our modules maintain excellent efficiency even at 200W/m² irradiance, ensuring that your system begins generating power earlier in the morning and stops later in the evening.
Q: What is the fire safety rating of this double-glass module?
A: These modules achieve a Class A Fire Rating (UL Type 29/Class C equivalent). The dual-glass structure is non-combustible, providing an extra layer of safety for commercial rooftops and high-density urban areas.
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