Mid tier — 24 kWh or 32 kWh
GoodWe ESA all-in-one battery, installed in Newcastle
Inverter, battery and backup prewired in one tower. Fast charging, near-instant blackout switchover and room to grow to 48 kWh — our most popular package.
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Product and installation gallery
Who it suits
- Families who want strong day-to-day savings plus blackout cover
- Homes on time-of-use or free-power-period energy plans
- Anyone likely to expand capacity or add an EV later
What stands out
Prewired all-in-one
Inverter, battery and UPS in one compact tower — a cleaner, quicker installation.
1C charge and discharge
Charges and discharges fast, so it can fill during a cheap or free power window.
Under 4 ms switchover
Backup kicks in fast enough that most appliances never notice the grid dropped.
Quiet and weather-rated
Fanless, under 30 dB, IP66 rated — fine on an outside wall.
What it costs
The GoodWe ESA is our mid package and the one most Newcastle households land on — it's the best balance of capacity, backup and price we install.
Cost moves with how many modules you stack and whether your switchboard needs bringing up to date. You get a fixed written quote with rebates already deducted.
Estimate my savingsSpecifications
| System type | All-in-one single-phase high-voltage home storage |
|---|---|
| Inverter output | 3–10 kW single phase; 5–30 kW on the separate three-phase ESA range |
| Our package modules | Three 8 kWh modules for 24 kWh, or four for 32 kWh |
| Expansion | Up to 48 kWh in a single-phase stack; up to 108 kWh on the three-phase range |
| Charge / discharge rate | 1C |
| Backup switchover | Under 4 ms |
| Ingress protection | IP66, fanless, under 30 dB |
| Cold weather | Heating mode rated to -20°C |
| Warranty | 10-year manufacturer warranty on the listed ESA battery and inverter models (AU/NZ terms) |
| Cycle life | At least 8,000 cycles on residential 5–20 kW configurations; 10,000 on 25/30 kW three-phase models |
Figures from the current manufacturer datasheet. View the manufacturer's specifications.
Local proof
We install these ourselves
Every system is fitted by our own electricians out of Hamilton — licence 470217C. No subcontractors, one team accountable from design to switch-on.
Common questions
Why is the ESA our most-fitted battery?
It's prewired as one unit, so installs are cleaner and faster, and the 1C charge rate lets it take full advantage of cheap or free power periods on modern energy plans.
How much capacity should I stack?
Our estimator compares 24 kWh and 32 kWh options, then we confirm the right size against your actual bills and evening usage.
Does it run the whole house in a blackout?
It depends on your load. We scope which circuits go on backup so the essentials stay on without overloading the system.
Compare the others
Talk to a local
Ready for a system that fits your home?
Get a quick estimate first, then a tailored quote from our local electricians.