Factory wholesale price for Mono-Crystalline 250W Solar Panel for Estonia Factory

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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

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  • As the rain comes down I complete the install of the new (and old) solar panels in this video and complete the wiring.

    For more information on the PWM5 Solar Charge Controller have a look at Julians Channel: https://www.youtube.com/user/julius256

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    Part 1 can be found here: https://youtu.be/bxlz69Kv6-s



    Last week, I was in Linz, Austria for the Ars Electronica Festival, an interdisciplinary showcase for technology-driven arts and science innovation projects of all kinds. Walking down one of the picturesque, Upper Austrian city’s 18th century cobblestone streets lined with Euro-chic shops and cafes, I came upon a gigantic metal sunflower parked in the middle of the roadway. This object turned out not to be a whimsical sculpture, but a portable, plug-and-play solar power unit. An on-site demonstration showed off its several innovations. At the touch of a button, a large solar panel surface unfolds, automatically turning toward the sun. At sunset, the unit folds up its panels, cleans itself, and stores itself in a housing for protection from the elements.

    Smartflower produces forty percent more output due to its GPS controlled tracking, which keeps the unit focused on the most effective angle to the sun to turn light into power. Its most innovative feature is that the unit is mobile. If you move, take it with you—it’s like a private, mobile solar power plant. It’s a stylish item, available in several colors. Its playful sunflower shape mimics the natural intelligence of the sunflower plant, which also opens and closes, and follows the sunlight for its energy. The Smartflower solar power unit is a bright new idea that has become an illuminating energy reality.

    I’m John Howell for 3BL Media.

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