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SolarAssistant showing small grid voltage even in off grid mode

Super Fly

New Member
Joined
Jan 21, 2020
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66
Hello

I have been using SolarAssistant on DEYE 8KW US version for myself and some customers. I must say, it is nice.
I do however have an issue. If the inverter is not connected to grid in any form or fashion, SolarAssistant is still showing a small voltage of about 4.3 VAC
I actually measured the grid terminals and the 4.3 volts does not exist.
How can this be corrected?
What is possibly wrong here?
grid voltage.png
 
Solar Assistant is just showing the data it receives from inputs. It does not directly measure anything.
If that's the data coming from the inverter, then that's what it will show.
 
I have seen it in both SA and PVpro.
mine reads 6.3v during a power outage and detailed PVpro graphing shows 4.3V on one phase and 2v on the other.
i think it is just stray voltage from the Inverter powering the system being picked up by the CTs.
 
Last edited:
No, it does not. I have seen multiple DEYE inverters and the small reading is always there.
Does not seem to be present in the solarman app though.
I have seen it in both SA and PVpro.
mine reads 6.3v during a power outage and detailed PVpro graphing shows 4.3V on one phase and 2v on the other.
i think it is just stray voltage picked up by the CTs.
Must be something in the hardware. If it's happening across all Deye models.
 
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