Hi,
I am trying to the my ESS running but the inverter only feeds 10 W from battery into the grid.
Here is my setting:
- PV cells 23 kWp, SMA STX20 inverter (both in place sind 2022)
- just installed: AC-connected Multiplus II connected to Felicity FLA48300 (LUX-Y-48300LG01). MPII connected on AC-in, nothing gon AC-out’s
- infrared sensor on grid meter publishing meter values via webserver on a raspi
- VenusOS with python script requesting the webserver, parsing values and feeding in via dbus (s. here)
- Both battery SoC and grid values are properly showing up in VenusOS-UI. However, I would expect the MPII to feed about 800 W but it doesn’t
- If PV generates energy the battery loading starts properly
I felt a bit confused about the number of different places for settings of Battery, ESS, Dynamic ESS. But here is what I assume is relevant (but apparently I am missing an important point). Any idea?
Some more screen in case it helps.pdf (322,1 KB)
Update: I had a fuse being switched off on AC-out. I disconnected it, not discharge is around 0 W.
I am confused. I have set MPII to inverter-only and the state below that still mentions “bulk loading”. Battery is in idle mode. Maybe bulk loading means loading from AC-in to AC-out?
ESS Relais test seems to make trouble. After re-scan of VE.bus and then restart VE.bus is shows “finished” and MPII is set to “charger-only” and state off. When I then switch MPII to “on = charger+inverter” it takes about a minute, then state switches to buld loading and ESS Relais test to “pending”.