I recently got a solar system with an EG4 18KPV inverter. It's generating less power than expected and I want to make sure all my panels are properly connected.
Is there a way to see how many solar panels are connected in the monitoring center?
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June 13, 2025 4:43 am
4 Replies
June 17, 2025 4:58 am
I have 14 400W panels with a VOC of 37.07. It should be one string of 9 and one string of 5, per the plans.
VpV on string 1 is peaking at around 260V. String 2 is, on further inspection, around 16 at peak, which doesn't seem good at all.
June 17, 2025 9:58 pm
I have 14 400W panels with a VOC of 37.07. It should be one string of 9 and one string of 5, per the plans.
VpV on string 1 is peaking at around 260V. String 2 is, on further inspection, around 16 at peak, which doesn't seem good at all.
Is that 16 or 160?
Are you panels stationary mounted (like on a roof) or are they on an adjustable mount?
rough math 9X37.07 = 333.63
you are getting 260 about 78% - depending on angle of panels to sun this may be realistic.
5X37.07 = 185.35
at 160V that would be about 86% - again depending on angle it may be realistic.
if it on 16 then there is something wrong and need to do some investigation - it would look like a fault someplace along the line.
