Factory Wholesale PriceList for Poly-crystalline Solar Panel 250W Supply to Myanmar
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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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4 Reception
5 Bedrooms
6 Bathrooms
Land Area 820
Building 520
10 to minutes from AUC
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3000 apartment (30% of the project)
80% residential and 20% facilities
17.5% to 18% footprint
No basement (no exceptions)
E-compound (100% sure) (25000 not sure) solar system (not 100% sure)
Delivery 4 years from contract
Maintenance 250 le/m and 5 %( over 2 years like
How to size a solar panel system, solar power calculation formula, how many solar panels do i need
In this video I show how to calculate your yearly, monthly and daily energy usage, kWh (kilowatt hour) calculations and the use of peak sun-hours to determine the size of the solar panel array that you need to power your home, motorhome, portable backup power supply unit or air conditioner.
I go over the goals and important factors that help to accurately calculate the size of your solar panel system including geographic location, climate, solar orientation, and objects that shade the panels.
Peak Sun-Hours lists by state pdf’s and maps: http://rredc.nrel.gov/solar/pubs/redbook/
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