Hot sale Factory Poly-crystalline Solar Panel 40W to Canada
Short Description:
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Poly-crystalline Solar Panel 40W
Technical parameter
Maximum Power(W) 40W
Optimum Power Voltage(Vmp) 17.35V
Optimum Operating Current(Imp) 2.31A
Open Circuit Voltage(Voc) 21.16V
Short Circuit Current(Isc) 2.53A
Mechanical Characteristics
Cell Type Polycrystalline 156 x 52mm
No of Cell 36 (4x9pcs)
Dimensions 670x420x30mm
Weight 4.0Kg
Front Glass 3.5mm,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*52mm
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
Solar Cell 1volt 80mA
Off Grid Solar Power – DC Water Pump.
Well, things are finally starting to take shape at the shack as far as getting off the electricity grid. I’ve designed a simple solar power system to provide power to pump water from one of the rainwater tanks to the house.
My current set up is a Grundfoss pressure pump running on 240V AC (240V is standard in Australia). I started doing the sums and figured out that a system to run the pump would be far too expensive. The pump is also capable of supplying far more water than I ever need to use at once. The Grundfoss pump draws 700W @ 240V AC on startup, which means that I would need an invertor big enough to handle that start up current, as well as circuit breakers and cable to handle that current draw at 12 volts (pretty close to 60 amps).
My new propane water heater uses up to 16 litres of water per minute, so I’ve sourced a 12V pressure pump that is rated to pump 17 litres per minute with a 40PSI cutoff. It also draws only 9.2 amps @ 12V DC. Now that makes the power requirements a lot easier.
I generally don’t have the water running for more than half an hour a day, so there’s 5AH @ 12V DC that I need. So I got a 100W monocrystalline PV panel on eBay, a 20A MPPT (Maximum Power Point Tracking) charge controller, a 20A circuit breaker, some battery terminals, some wire and some jumper lead cable that I had laying around.
I paid $5 each for the batteries at the local tip shop and after sitting in my carport for six months, they were still holding 12.5V.
In the next couple of weeks, I’ll get the pump hooked up to the house and do a test run with the new pump and propane water heater.
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Music: Born Barnstormers by Brian Boyko. The full track is available at freepd.com. This music is in the public domain and is free to use.
