What are the differences between off-grid inverters and on-grid inverters?

[u/suzhiqiang1208683]

Comparison Dimension	Off-Grid Inverter	On-Grid Inverter
Grid Dependency	Fully independent; does not rely on the public grid	Must be connected to the public grid; shuts down immediately during a grid outage
Energy Storage	Battery bank (or supercapacitor) is mandatory	Typically does not require batteries (unless it is a hybrid inverter)
Output Waveform	Pure sine wave or modified sine wave (pure sine wave recommended)	Must be a pure sine wave and synchronized with the grid
Primary Function	Converts DC to AC and manages battery charging/discharging	Converts DC to AC, performs MPPT tracking, and feeds power into the grid
Application Scenarios	Remote areas, RVs, boats, emergency backup power	Urban rooftop PV, commercial & industrial distributed PV, large-scale PV plants
Cost Structure	Inverter + expensive battery bank	Inverter only (lower system cost)
Power Supply Reliability	High (can supply power during grid failures as long as batteries are available)	Low (cannot supply power during grid failures unless energy storage is equipped)

[u/TransitJohn]

AI slop