Residential homes only. SAA-accredited Sigenergy installer. Modular battery from 5 kWh to 48 kWh, native single or 3-phase. Federal rebate applied at point of sale.
Sigenergy is our preferred fit for many Gold Coast homes — especially if you've got 3-phase power, you want flexibility on capacity, or you've already got a non-Tesla solar inverter you don't want to rip out.
SigenStor is modular. You start with one inverter module and stack battery modules on top in 5 kWh blocks. Single-phase or 3-phase native — no compromises if you've got a 3-phase home. The system can grow with you: start at 8 kWh, add another module in 2 years when an EV joins the family.
SigenStor is available in both native single-phase and native three-phase versions. On a three-phase home that matters: a single-phase battery can only back up the phase it is connected to, while a native three-phase system can deliver and receive power across all three phases and back up the whole home.
We confirm your phase configuration during the site assessment. If your home is single-phase and a fixed-capacity unit suits you, Tesla Powerwall 3 may work just as well — we recommend based on the property, the existing solar, your backup requirements and where you want to be in five years.
Powerwall 3 is the safe brand pick. For many Gold Coast homes — especially 3-phase homes — Sigenergy gives us more design flexibility than a single Powerwall 3. Here's where it wins:
We'll quote you the right one for your home. We don't push one over the other for commission reasons.
Under the federal Cheaper Home Batteries Program, the rebate is tiered:
Because Sigenergy is modular, the system can be sized to use the strongest rebate tier efficiently. Full rebate explainer →
Last checked: 12 June 2026. Rebate values change with STC rules and STC market pricing, and step down over time to 2030. Final value confirmed in your written quote.
Eligible installs may receive an upfront federal rebate discount — final value depends on battery size, usable capacity, STC value, install date and eligibility.
Real number locked in on your quote — depends on the STC price the day we install. Full rebate explainer →
Common Gold Coast home sizing:
Don't oversize for the sake of it — the rebate tier 1 cuts off at 14 kWh, so going much above that gets less return. We'll size it to your actual usage data if you can share a recent bill.
Sigenergy is newer to the Australian market than Tesla, but it's scaled quickly since 2024 with a large Australian installer base and a 10-year warranty. Every system we install is covered by the manufacturer warranty plus our own workmanship guarantee — and we only install gear we're confident standing behind.
Yes — properly. Unlike Powerwall 3, Sigenergy can do true 3-phase whole-home backup when sized appropriately. Runtime depends on size and load: a 16 kWh system runs essential circuits for 24+ hours easily.
That's where Sigenergy shines. You add another 5 kWh battery module on top of the stack — no second inverter, no rip-and-replace. The federal rebate is one-per-property so the expansion won't attract another rebate, but the cost is just the module + a few hours of labour.
Yes. Sigenergy is AC-coupled to existing solar — works with Fronius, Sungrow, SMA, GoodWe, basically any inverter brand. You can keep your existing solar exactly as is. If your inverter is old and worth replacing, we can swap it for the Sigenergy hybrid inverter (DC-coupled) for better efficiency.
Floor-mounted indoors or outdoors (IP65 rated). Garage corner is the most common spot. Tower form factor — takes up about as much floor space as a small filing cabinet.
No. SigenStor is VPP-capable which satisfies the rebate. Whether you ever join one is up to you.
Send switchboard and inverter photos — we'll review it during business hours and come back with a clear quote covering Sigenergy sizing, rebate where eligible, and any site-specific requirements explained upfront.