· 8 min read
Three-phase power is standard on Australian acreage, in new-build estates with ducted aircon, and in any home running an 11kW EV charger. A three-phase solar system needs a three-phase inverter — and increasingly, a three-phase battery — to balance loads cleanly across all three legs.
For 2026 we install four three-phase battery systems: the Foxess CQ6 + H3 hybrid, the Sungrow SBR + SH-RT, the Tesla Powerwall 3 (single-unit three-phase) and the BYD HVM stack with a Fronius Symo Hybrid.
Each has trade-offs in usable capacity, backup behaviour, monitoring depth and price. Our installer team breaks down the daily kWh assumptions, EV-charging compatibility and rebate stacking under the 2026 Cheaper Home Batteries Program.