# Off-Grid Inverter

An inverter that creates its own AC network from a battery bank rather than following an existing grid, supplying loads in an installation with no utility connection. It is also called a standalone or battery-based inverter.

Source: https://inverterdata.com/en/glossary/off-grid-inverter/
Site: InverterData (inverterdata.com) — open technical specification database
Last updated: 2026-08-24
License: free to quote with attribution to inverterdata.com

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Unlike a grid-tied unit, an off-grid inverter must set the voltage and frequency itself and hold them steady while loads switch on and off, so surge capability matters as much as continuous rating — motors, pumps and compressors draw several times their running current at start-up. Sizing is driven by the largest simultaneous load rather than by the array. Because there is no grid to export to, the system needs a strategy for full batteries, which usually means shifting frequency to throttle any AC-coupled PV or diverting surplus to a dump load.