Hello. I have a new PV system installed (by a professional) with 20 Shutten Solar panels 410 Wc, a Fronius Symo 8.2-3 (3 phases), a Fronius Smart Meter 65A-3 (for zero injection, that's a long story with my utility provider...), 3 Quattros 48/5000/70, 4 LiFePO4 batteries 25.6V/200Ah, and a back- up generator. System management is through a Cerbo GX 3 and a BMV700.
I am struggling a bit to get the configuration right. One issue I see is that, during the sunny hours, while the ESS decides to discharge from the batteries, it does not allow production from the solar panels (see screen below). This effectively reduces the efficiency of the system, especially when the loads of the house are such that it may take several sunny hours for the discharge to stop at the min. SOC (currently at 75% on Batterylife), leaving me, by the end of the sunny hours, with batteries charged at 85% or so, nor contributing much to the loads overnight. Do I expect too much from my system, or is there a way to get around this issue? Many thanks for your tips!
