GoodWe 9.99kW / 40kWh Battery System — 1 Phase
$18,661.50
GoodWe ESA all-in-one 9.99 kW single-phase inverter + 40 kWh usable storage (5 modules) · backup · grid forming · IP66
In one line
The GoodWe 9.99kW 40kWh 1 Phase battery system: a 9.99 kW hybrid inverter paired with 40 kWh of storage, supplied and installed as one package.
Who this suits
Very high usage or extended backup.
Before you choose on size
Federal battery certificates are tiered — weighted toward the first 14 kWh of usable capacity, tapering from 14 to 28 kWh, and small above that. A larger battery does not attract a proportionally larger discount. Choose capacity on your evening and overnight usage and whether you want extended backup, not on the rebate.
→ How the rebates work
What is in the GoodWe 9.99kW 40kWh 1 Phase battery system
The GoodWe ESA all-in-one on single-phase supply with five high-voltage battery modules — 40 kWh of usable storage.
At 40 kWh this is a resilience-first system. It suits properties where outages are frequent or long, homes running almost entirely on electricity, and households that want to draw from the grid as little as possible rather than simply avoid the evening peak.
The ESA integrates the inverter, meter, backup changeover switch and battery base into one wall-mounted unit, and it is grid forming — during an outage it establishes and holds its own supply instead of disconnecting.
Four MPPT trackers and 200% DC oversizing accept up to 19.98 kW of panels. A five-module stack weighs close to 400 kg, so wall structure, position and clearances are checked at the site assessment. Panels, mounting and installation are quoted separately. Indicative values are not a quote.
Manufacturer information on the GoodWe battery system: GoodWe ESA series. You can check any battery on the Clean Energy Council approved batteries list.
Additional information
| Brand | GoodWe |
|---|---|
| Phase | 1 Phase |
| Inverter Output | 10 kW |
| Battery Capacity | 40 kWh |
