450W MBB Half Cell Mono PV Panels For Solar System Energy Storage
Differences Between Mono PV Panels and Poly PV Panels:
1. Different conversion efficiency
At present, the photoelectric conversion efficiency of monocrystalline silicon solar cells is about 17%, and the highest is 24%, which is the highest photoelectric conversion efficiency of all kinds of solar cells. The production process of polycrystalline silicon solar cells is similar to that of monocrystalline silicon solar cells, but the photoelectric conversion efficiency of polycrystalline silicon solar cells needs to be reduced a lot, and photoelectric conversion efficiency is about 15%.
2. Different manufacturing costs
The production cost of monocrystalline silicon is so high that it can not be widely used. In terms of production cost, it is cheaper than monocrystalline silicon solar cells. The materials are easy to manufacture, saving power consumption, and the total production cost is low, so it has been developed in large numbers.
3. Different service life
The service life of polycrystalline silicon solar cells is also shorter than that of monocrystalline silicon solar cells. Monocrystalline silicon is generally packaged with tempered glass and waterproof resin, so it is sturdy and durable, with a service life of 15 years in general and 25 years at most. In terms of performance price ratio, monocrystalline silicon solar cells are slightly better.
Main Parameters of Sunpok Mono PV Panels
| Electrical Characteristics |
| Model | NES144-6-440M | NES144-6-445M | NES144-6-450M |
| Maximum Power(Pmax) | 440W | 445W | 450W |
| Optimum Operating Voltage(Vmp) | 40.50V | 40.80V | 41.00V |
| Optimum Operating Current(Imp) | 10.86A | 10.92A | 10.98A |
| Open Circuit Voltage(Voc) | 49.00V | 49.20V | 49.50V |
| Short Circuit Current(Isc) | 11.30A | 11.36A | 11.42A |
| Module Efficiency | 20.24% | 20.47% | 20.70% |
| Operating Module Temperature | -40 ℃ to +85 ℃ |
| Maximum System Voltage | 1500V DC (IEC) |
| Power Tolerance | 0~+5W |
| STC | irradiance 1000 W/m2, module temperature 25oC, AM=1.5; Best in Class AAA solar simulator (IEC 60904-9) used |
| Mechanical Characteristics |
| Solar Cell | 166mm 9BB Monocrystalline silicon cells |
| No. of Cells | 144(6x12x2) |
| Dimensions | 2094x1038x35mm；2108x1048x35mm |
| Weight | 24.5kg |
| Front Glass | 3.2mm(0.13 inches) tempered glass |
| Frame | Anodized aluminum alloy |
| Junction Box | Ip67 rated |
| Output Cables | 4.0 mm 2 (0.006 inches 2 ), 300mm/Customized |
| Connectors | MC4 connectors |
| Temperature Characteristics |
| NOCT | 45±2 ℃ |
| Temperature Coefficient of Pmax | -0.380%/ ℃ |
| Temperature Coefficient of Voc | -0.300%/ ℃ |
| Temperature Coefficient of Isc | 0.060%/ ℃ |
| Packing Configuration(35mm) |
| Per Pallet | 30Pieces |
| Per Container (20' GP) | 282Pieces |
| Per Container (40' HQ) | 704Pieces |
Sunpok Mono PV Panels Production Plant and Packaging
FAQ
Question 1: What is the lead time?
Answer 1: We can deliver within 3-15 days.
Question 2: What is the warranty period, and how many years?
Answer 2: The warranty period for mono PV panels is 10-25 years.
Question 3: How is your technical support?
Answer 3: We provide lifetime online support through Whatsapp/ Skype/ Wechat/ Email. Any problem after delivery, we will offer you a video call anytime, our engineer will also go to overseas help our customers if necessary.
Question 4: How to become your agent?
Answer 4: Contact us through the website, email, or phone, and we can talk about details to confirm.
Question 5: Is the sample available and free?
Answer 5: Sample will be charged a cost, but the cost will be refunded after the bulk order.
Question 6: Do you support OEM/ODM?
Answer 6: Of course, we can do customized services for our partners.
If you have other questions, please add the contact information of our sales manager to understand, thank you!
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