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Post by manuel13 on Aug 5, 2016 9:41:19 GMT -8
what kind of reasonable expectations show I expect out of a small rv solar power system consisting of 4 100 watt solar panels with a 30 amp pwm controller into a 400 amphour battery bank? On an average sunny day what kind of wattage could I expect to go to my batteries? Thanks
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Post by jsb2000 on Aug 5, 2016 16:47:01 GMT -8
what kind of reasonable expectations show I expect out of a small rv solar power system consisting of 4 100 watt solar panels with a 30 amp pwm controller into a 400 amphour battery bank? On an average sunny day what kind of wattage could I expect to go to my batteries? Thanks The answer depends on many factors. Some I can think of off the top of my head? Your geographic location (IE how much sun you get), how your solar panels are pointed (direction, angle, etc.), and your wiring. In peak mid-day sun, my 100W panel produces 75W of power in the summer and 50-65W in the winter. I could improve that winter number by changing the angle...but I also get more usable hours of sunlight in the winter versus the summer. But, in general, I believe that 65 to maybe 90 watts per 100 watt panel is a reasonable expectation. So, that would give you 260-360 watts multiplied by the number of hours of average sunlight you expect to receive in your geographic location, less shade from trees, poles, etc. |
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Post by Admin on Aug 23, 2016 12:51:53 GMT -8
Hello Manuel,
AS Jsb mentioned it really depends on where you are at geographically. You can call our techs at 800-330-8678 and we can give you a better idea. Just for reference though the 100 watt panel produces around 5 amps in an hour under optimum conditions so you should be generating roughly 20amps in an hour from four panels.
-A.L.
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