5 Years manufacturer Poly-crystalline Solar Panel 250W Supply to Vietnam

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Poly-crystalline Solar Panel 250W

Technical parameter

Maximum Power(W)                           250W

Optimum Power Voltage(Vmp)           30.25V

Optimum Operating Current(Imp)       8.26A

Open Circuit Voltage(Voc)                  36.61V

Short Circuit Current(Isc)                     8.89A

Mechanical Characteristics

Cell Type Polycrystalline                      156x156mm (6 inch)

No of Cell                                              60 (6x10pcs)

Dimensions                                           1640x990x40mm

Weight                                                   18.5KGS

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——Polycrystalline 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 Poly-crystalline 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

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    Prof. Avner Rothschild and his research team in the Technion Faculty of Materials Science and Engineering have made a breakthrough in solar fuels. Using the power of the sun and ultrathin films of iron oxide (commonly known as rust), the researchers have found a novel way to split water molecules into hydrogen and oxygen. The breakthrough, published this week in Nature Materials, could lead to less expensive, more efficient ways to store solar energy in the form of hydrogen-based fuels. This could be a major step forward in the development of viable replacements for fossil fuels. “At the end of the day, we would like to substitute solar energy for oil,” Rothschild has said.

    “Our approach is the first of its kind,” says lead researcher Rothschild. “We have found a way to trap light in ultrathin films of iron oxide that are 5,000 times thinner than typical office paper. This is the enabling key to achieving high efficiency and low cost. ”

    The research was carried out, in the Electroceramic Materials & Devices Laboratory; and at the Photovoltaics Laboratory. Both labs are supported by the Russell Berrie Nanotechnology Institute (RBNI) and by the Grand Technion Energy Program (GTEP).

    Nature Materials article “Resonant light trapping in ultrathin films for water splitting”.

    http://www.nature.com/nmat/journal/vaop/ncurrent/pdf/nmat3477.pdf

    Follow this link to learn more about Technion: http://pard.technion.ac.il

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