i m using an ESS system, three phase, 2X BYD batteries 10 kW; PV area 9,6 kW, 3 X Multiplus 5 kVA and Fronius Symo 10 kW.
satisfied with more than one year from the installation of system; monitoring for long time with separate devices from VICTRON - i m using also Color GX from Victron as part of system.
for attached pictures, in a cloudy day, at the moment with sun on sky we can see that my house is using energy from grid also and in the same time is injected energy into the grid, even batteries are near empty.
as the ESS system is configured to feed battery first is appear that is not so optimised to do this job , and need some attention .
Can someone from Victron specialist explain what can be the reason of those graphs ?
clear in the another hand, my system is configured with minim injection on grid, approximately 30 W, because in configuration with 0W injection is became more unstable and energy injected on grid is bigger.