Big discounting Mono-Crystalline 250W Solar Panel for Singapore Manufacturers
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Mono-Crystalline 250W Solar Panel
Technical parameter
Maximum Power(W) 250W
Optimum Power Voltage(Vmp) 30.3V
Optimum Operating Current(Imp) 8.29A
Open Circuit Voltage(Voc) 36.76V
Short Circuit Current(Isc) 8.91A
Mechanical Characteristics
Cell Type Monocrystalline 156x156mm (6 inch)
No of Cell 60 (6x10pcs)
Dimensions 1640x990x40mm
Weight 18.0KGS
Front Glass 3.2mm,High Transmission, Low Iron,Tempered Glass
Junction box IP65 Rated
Output Cable TUV 1×4.0mm2/UL12AWG,Length:900mm
Temperature and Coefficients
Operating Temperature(°C): -40°C ~ + 85°C
Maximum System Voltage: 600V(UL)/1000V(IEC) DC
Maximum Rated Current Series: 15A
Temperature Coefficients of Pmax: -0.47%
Temperature Coefficients of Voc: -0.389%
Temperature Coefficients of Isc: 0.057%
Nominal Operationg Cell Temperature (NOCT): 47+/-2°C
Materials of solar panel
1).Solar Cell——Mono-crystalline solar cell 156*156mm
2).Front Glass——-3.2mm, high transmission, low iron, tempered glass
3).EVA——-excellent anti-aging EVA
4).TPT——-TPT hot seal made of flame resistance
5).Frame——anodized aluminum profile
6).Junction Box——-IP65 rated, high quality, with diode protection
Superiority: high quality anodized aluminum frame, high efficiency long life, easy installation, strong wind resistance, strong hail resistance.
Features
1. High cell efficiency with quality silicon materials for long term output stability
2. Strictly quality control ensure the stability and reliability, totally 23 QC procedures
3. High transmittance low iron tempered glass with enhanced stiffness and impact resistance
4. Both Polycrystalline and Mono-crystalline
5. Excellent performance in harsh weather
6. Outstanding electrical performance under high temperature and low irradiance
Quality assurance testing
Thermal cycling test
Thermal shock test
Thermal/Freezing and high humidity cycling test
Electrical isolation test
Hail impact test
Mechanical, wind and twist loading test
Salt mist test
Light and water-exposure test
Moist carbon dioxide/sulphur dioxide
BINGHAMTON, NEW YORK — Researchers at Binghamton University have come up with an interesting way to harness energy, using a resource we have far too much of — bacteria.
Science Daily reports that to harness power from bacteria, scientists arranged nine bio-solar cells in a 3-by-3 pattern to form a scalable and stackable panel.
The cells use cyanobacteria, which can be found in aquatic and terrestrial habitats, as a source of clean and sustainable energy.
In the daytime, light energy absorbed by the panel causes oxygen and electrons to be released through photosynthetic reactions. When conditions are darker and no sunlight is available, the bacteria’s respiratory activities produce electrons.
5.59 microwatts were generated in 12-hour day to night cycles over a total of 60 hours.
Solar panels using a 6-by-10 configuration produce about 200 watts at a given moment. The bio-solar cells, in the same pattern, will only generate 0.00003726 watts.
The technology is not the most efficient, but with further development, it has the potential to be a more reliable energy source. Once the panel becomes functional, it could power small, wireless systems in remote areas where frequent battery changes are impractical.
The findings were reported in the paper “Biopower generation in a microfluidic bio-solar panel” which was published in the journal Sensors and Actuators B: Chemical.
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Time lapse of sunrise to sunset over solar panels at Sacramento State University.
