question

nimue avatar image
nimue asked

AC Consumption not right

Hi,


I've got an ESS with PV in front and on the back of an Victron Quattro 8 kVA.

I get the PV values from SMA SB 2.5 via ModbusTCP, so no real Sensor.

If i calculator the production and the AC usage, I do not come to the same number as advertised at Grid. I hope you can understand my Question.


CCGX, Quattro 48/8000, ET340 with RS485 to USB, BYD LV 7 kWh at 48VDC, 4x SMA SB 2.5, ESS.


ESS
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2 Answers
Paul B avatar image
Paul B answered ·

As this is 3 phase and there are lots of connections and cals and there is no details

A full wiring diagram would be needed and setup description IN DETAIL

there are multi areas that the info comes from as well


so maybe you will have to work it out by disconnecting this and that and seeing the results

we can try and help and guide when needed


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boekel avatar image
boekel answered ·

Probably a configuration error for one of the PV inverters / critical loads.
the error seems to be about 2-2,5 kW so that's a clue.

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