I have a simple single-phase MP Compact 24/2000/50 which is AC-coupled to a 2kW Fronius MPPT. Batteries are 300Ah NiFe.
I have been using the self-consumption Hub-2 V3 Assistant (0168) for 10 months. Five months ago, I noticed on my power bill that the Assistant hadn't been "disconnect from grid at night"-ing as advertised so I started manually turning off the grid at sundown.
For the past few days, the Victron has started setting Ignore AC to 1 after I turn the grid on in the morning, disabling export of excess PV power to the grid.
If I delete the Assistant, Ignore AC goes off (0) and I can export PV. So it's not a hardware or grid problem?
However, on cloudy days, I can't charge the batteries as, without the Assistant, it starts importing power from the grid to charge them. Inefficiencies x Inefficiencies x Inefficiencies. Oh, for a NEVER-EVER-CHARGE-BATTERIES-FROM-THE-GRID flag!
Today I upgraded VEConfig3 and tried the latest version of the Hub-2 V3 Assistant, (0182). Same problem.
Any ideas what might have suddenly triggered this behaviour after 10 months?
Possibly related: New NiFe batteries need to be conditioned with high currents so for the past 4 months (it took me a while to find this out) I've been manually turning on the charger when PV power reaches 1500W to give them 42A for a few hours/day.