14 Years Factory Mono-Crystalline 250W Solar Panel for Buenos Aires Factories
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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
[view in full screen in 720p HD if able or 480p resolution]
Rewired the wind turbine and mast up another meter to clear wind obstructions on the roof.
The turbine was on a temporary pole in a temporary position in turbulence among trees and roofing obstructions , consequently it tip stalled and flicked around on the pole at as little as 4 m/s wind speed. The pole itself is only thick rolled galvanized sheet iron and flexes too much causes continual lower rotation speed below the value of the wind speed. However, it reasonably did ok, being half the charge output. Wind was never actually constant only pulses and gusts.
Note: “12V 40AH lithium iron phosphate (2000 cycles to 100 percent DOD)” Battery is one type i have found(not used here) that may be interesting, for use here because a 12v system can only have 4 batteries maximum in parallel(these special lithium i’m not sure if it can or cannot have more in parallel).They are around 230 USD each (255 AUD) “at” the manufacturer with Minimum 10 of them.
In terms of its DOD and cycles, it becomes a 200ah lead acid battery with less complications.
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Cheap Solar Panel
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Original Video by nurkabil
