A hybrid solar photovoltaic system is a combination of solar & grid power technology to take the most advantage. If the energy produced via PV arrays enough for household consumption. The inverter will use PV energy and charge the surplus to the battery.
Likewise, if consumption exceeds PV energy, the inverter will take extra energy from the utility grid. In absence of sun, the inverter will, depending on energy consumption, use energy solely from the batteries or take the energy from the utility grid.