There are dozens of home batteries on the Australian market. We install three, because knowing three systems properly beats being vaguely familiar with twenty. Here's how they compare.
AlphaESS SMILE M5 and M10 — model-specific configurations
A single-phase all-in-one hybrid range. The current M5 page lists 5 kWh modules in 1–6 module configurations and a nominal 13.99 kWh module in 1–2 module configurations. The M10-S page lists 8, 9 and 10 kW inverter variants with its own compatibility rules. The precise inverter, module and count should be stated in the quote.
Fit depends on property phase, PV configuration, measured loads, required backup circuits and the selected inverter's off-grid continuous and surge ratings.
GoodWe ESA — single-phase modular configurations
The current Australian single-phase ESA datasheet lists 3 to 10 kW inverter variants and model-specific battery modules with 5.0, 8.0, 5.8 or 8.7 kWh usable capacity. Mixing and stacking follow compatibility rules. GoodWe states less than 4 ms switching under specified conditions; this does not guarantee uninterrupted operation for every appliance.
GoodWe lists nominal off-grid output of 3, 3.6, 5, 6, 8 or 10 kVA by inverter model. Its 63 A figure is maximum grid bypass on relevant models, not battery-only output or a promise of whole-house backup.
EcoFlow OCEAN 2 — distinct single-phase and three-phase products
EcoFlow publishes OCEAN 2 Plus single-phase inverter variants at 8, 10 and 12 kW with compatible 5.02 kWh and 8.03 kWh nominal module options, and a distinct OCEAN 2 three-phase range at 6, 8, 10 and 12 kW using the 8.03 kWh module. Its 0 ms backup statement is a manufacturer claim subject to supported grid, load and stable operating conditions.
The quote must identify which OCEAN 2 product is proposed. Its 63 A on-grid input or bypass figure is not assured off-grid current, and backup coverage depends on the selected inverter, supported loads and site design.
Choosing between them
- Confirm the precise inverter and battery model, not just the brand or family name.
- Compare nominal and usable capacity, property phase, PV configuration and expansion compatibility.
- List backed-up circuits, off-grid continuous and surge power, and inverter and battery warranties separately.
The honest answer is that your usage pattern decides this, not the brochure. Run the estimator, then talk to us about what your bills actually show.
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