It’s dark outside but the victron AC current sensor connected to the temp input of the multiplus 2 gx is still showing 216 watt of PV power.
No other devices are connected to the AC wire, it directly goes into the enphase q relay next to the ac current sensor.
The cable between the multiplus and the ac current sensor is one pair of a cat5e cable, 2 meters long.
What can cause this issue?
This is the used ac current sensor: AC Current sensor - single phase - max 40A - Victron Energy
Maybe this is related?
I think I found the answer:
I will post a reply if it settles down the following days.
indeed. The clamp is measuring apparent power (VA) which includes reactive power.
Is measuring VA with enphase micro inverters good enough for dess? Or should I replace it with an ET112?
The zero correction is now applied by the victron. The reading is now 0. This causes small pv power generation to be invisible unfortunately but probably it will be ok for dess.
An ET112 would have been a better choice.
I have an ABB B21 Modbus meter for solar metering (APS DS3-L). This meter measures active, apparent and reactive power separately. I see 120VA apparent power at night. Apparent power is fortunately not billed for consumer grid connections. I’m using ESS where the solar metering is only used for display and accounting purposes on VRM.
At this moment all has settled down and is working correctly. 0 watt at night.
