Factory wholesale price for Poly-crystalline Solar Panel 250W for Mali Manufacturers
Short Description:
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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
Watch us build a glass tile covered fountain that is powered by solar electric. The solid concrete base will be completely impervious to Florida’s climate, and the many pests that will try to invade it. The biggest pest we have to design against is our pet Bunny BooBoo. He chews through wires like they were made of soft candy. (and he HAS!) So we had to dig a 30 foot trench to bury the wires that come from the solar unit, and we had to make a housing for the wires that run to the pump.
In the future we will need to obtain energy and raw materials from beyond our first planet.
This is the prequel to my series “Resources from Space”. You can watch the other webisodes here:
“Space-Based Solar Power”: https://www.youtube.com/watch?v=vJcev0Jq3Ig
“Asteroid Mining”: https://www.youtube.com/watch?v=erF17yO9VsE
“Mining the Moon”: http://youtu.be/n9EMcyfGMDA
You can read more about resources from space, and access images from the videos, at: http://www.explainingthefuture.com/resources_from_space.html
