The words hybrid and off-grid are often used loosely. For procurement, the useful question is what the inverter must do with PV input, grid input, battery charging and backup output.
A project connected to the grid, a remote cabin and a split-phase backup system may each need a different inverter even when the kW rating is similar.
Hybrid means grid interaction must be reviewed
Hybrid inverters usually need more attention to grid standard, export control and backup function. They are suitable when the system interacts with both PV and grid supply.
Off-grid means charging and autonomy matter more
Off-grid systems depend on PV input, battery capacity and sometimes generator charging. The inverter should be chosen around real daily operation, not only peak kW.
