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Post by bamiller on Nov 18, 2014 17:25:42 GMT -8
I just installed the Renogy 300 watt system at my remote cabin. The specs on a 100 watts panel says it has an output of 5.29 amps. I'm new to this solar thing so excuse if this is a dumb question but will my 300 watt system put out a total of 5.29 amps or 15.87 (5.29 x 3 panels).
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Post by jsb2000 on Nov 18, 2014 17:57:39 GMT -8
I just installed the Renogy 300 watt system at my remote cabin. The specs on a 100 watts panel says it has an output of 5.29 amps. I'm new to this solar thing so excuse if this is a dumb question but will my 300 watt system put out a total of 5.29 amps or 15.87 (5.29 x 3 panels). Current in parallel is additive. So, if you connect three 100 Watt panels with an output current of 5.29 amps in parallel, theoretically they should produce 15.87 amps. In practice, however, you probably won't ever get close to that amount of current. Typically, you lose some power from the sun not hitting the panels at the optimum angle, from the length of wires, etc. My 100 watt panel usually gives me a maximum output of 75 watts in the summer and around 50 in the winter. But that's to be expected. Unless your panels can move to track the sun at the best angle, you will always get less than the maximum rated power output. Mine is mounted on my awning which faces southwest. The angle is great for the summer but not so great for the winter. I get more power at midday, and buildings/trees/utility poles decrease the "solar day" as well. But the Renogy panels are very impressive performers. I'm constantly surprised at how much power they provide, especially on overcast days! |
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Post by johann on Nov 19, 2014 18:47:52 GMT -8
I agree with jsb2000. Renogy panels are very good.
If you parallel panels the average voltage will be about the same as 1 panel, but your amperage will add up.
If you series your panel, the voltage will add up and the amperage will be equal to the lowest amp any of the 3 panel have.
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