Tempted by the generator LOM settings improvements, I recently updated the firmware on my Quattro 15KVA from version 491 to 502. This did enable me to charge the batteries using the 8KVA petrol generator (though not pass-through any power but that's another topic). However I've noticed that sometimes the system will switch to batteries instead of grid during ESS scheduled charging times. I thought it was just while my 2kW plug in car charger was running but it also happened on another occasion when a washing machine cycle ran at the same time as a dishwasher. The total load on the system is well below the AC-in current limit and these scenarios were not a problem before the firmware update. I expect the UK grid code amendment 8 has had to make the system protect the grid more than before.
I was considering changing the grid code fine grained settings or just giving up and backtracking the firmware version to avoid wasting energy bouncing the batteries up and down, but thought I'd ask if anyone had a similar problem with hope of a fix in a future firmware update or a configuration solution?
Apart from the Quattro 15KVA, I have the following setup:
Everything running on the critical loads output
10 x Pylontech US5000 lithium ion batters ~= 48kWh capacity
Cerbo GX
Fronius Primo 3.6 kW with 2.76 kW (standardized) peak output panels on AC-out
Victron SmartSolar MPPT VE.Can 250/85 rev 2 with 4.36 kW (standardized) peak output panels
Victron SmartSolar Charger MPPT 250/60 rev 2 with 1.84 kW (standardized) peak output panels
ET112 AC meter on AC-in from the grid
ET112 AC meter on AC-out from the Quattro
