Check the inverter’s capacity against your panels, household usage and any future battery plans, and confirm it is approved for use in Australia. Compare efficiency, monitoring features, warranty terms, replacement support and whether the unit is suitable for your installation location and local conditions. If you want battery backup, check that it is compatible with the battery system and can provide the backup functions you need. Ask a licensed solar electrician to assess the design, grid connection requirements and installation, and compare the manufacturer’s information with guidance from Energy.gov.au.