09-21-17, 09:51 AM | #1 |
Lurking Renovator
Join Date: Sep 2017
Location: Canada
Posts: 3
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MPPT PV Watts not closely matching Open Voltage
Hi,
I am very new to solar and I'm seeing something on my MPPT's monitoring display which I am not quite understanding. When I conduct an Open Voltage test of my panels near the MPPT, I see under so-so sun, 32+ VDC/ 6.8 amps Let's say roughly 217.6 watts. When I immediately connect the PV to the MPPT and I create a draw of more than 62 watts, I'll start to draw from the battery. I would have thought that I would be able to draw 200+ watts from the PV's before tapping into the batteries. As a newbie, do I have a fundamental misunderstanding? Details
100' run This location is our cabin. We only use it during the summer time. It points north and is shrouded by trees. Perfect for summer and horrible for solar! I have measured the DC loss and it is not significant. References
ps: as I am new to the forums I am not allowed to use URL links in my posts yet. |
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