Selectronic with PowerPlus batteries is a popular Australian-made off-grid solar system. Typically, the system is built as an AC-coupled setup, using a grid-connect inverter to connect the solar panels. Fronius is a favoured choice for the inverter.
5kW inverter, 8kWh battery, up to 10kW solar – $16–22k installed (after rebate)
12kW inverter, 16kWh battery, up to 20kW solar – $22–30k installed (after rebate)
16kW inverter, 32kWh battery, 12–30kW solar