Hello,
I would like to know how to wisely connect a Multiplus-II GX to a battery for a house with solar pannels.
I want to be able to charge and discharge the battery from and to the grid (in addition to charging the battery from solar panels to benefit from hourly tarifs) and would like to know if these 2 diagrams from Victron’s datasheet on the MPIIGX would fit: Grid parallel topology with MPPT solar charge controller(i) & Grid in-line topology with PV inverter(ii).
I fear that the first diagram (i) might not be optimum as solar production has to go through the MPIIGX whereas the second diagram (ii) implies that loads can’t be furnished directly from the grid and if there is a problem with the MPIIGX, these loads can’t be furnished at all.
What do you think would best meet my need? Is there a possible combination of both diagrams that can be used to let solar panels be directly connected to loads and allowing the loads to also be directly connected to the grid ?
Thank you very much!