High Wattage Solar Panels
Comments
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I am mounting these 435 watt Sunpower panels on my RV.
These are the most efficient panels made today.
Avg. Panel Efficiency 20.3%
I am buying these E series commercial panels. I am getting these for $300 each, the more I buy the cheaper they are.
Never buy any junk from Alibaba.. These Sunpower panels are used in solar farms,
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Be careful when using/specifying the higher wattage panels.
Some are in the Vmp~50-78 VDC or so range. If you have a 48 volt battery bank in a very cold climate, the Voc-cold rating can exceed ~140-150 VDC if you put two panels in series. And one panel's Vmp is (may) not high enough voltage to properly charge a 48 volt Flooded Cell Lead Acid battery bank.
-Bill
Near San Francisco California: 3.5kWatt Grid Tied Solar power system+small backup genset
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