Sigenergy SigenStor · Sydney & NSW
Sigenergy SigenStor Batteries for Sydney Homes
A stackable all-in-one system for larger homes and high energy users, installed and supported by our own SAA-accredited team from our Mount Druitt head office.
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- 3,200+Installations
- Since 2017Locally owned
- SAAAccredited installers
An All-in-One System for Bigger Energy Needs
SigenStor combines a hybrid inverter, battery modules and an energy controller in one stacked unit, with an optional DC EV charger module. Instead of several boxes on the wall, you get a single, tidy tower that manages your solar, battery, grid connection and, if you choose, your electric car.
The battery modules come in two sizes, 5.2kWh and 7.8kWh usable, and stack up to around 48kWh. That makes SigenStor a natural fit for large Sydney homes with ducted air-conditioning, pools, home offices or EVs, where a small battery would empty early in the evening.
Our Sigenergy package provides 32kWh of storage with a 10kW inverter, sized for large homes and households that want as much of their evening and overnight use as possible covered by their own solar.
Sigenergy SigenStor Specifications
Key figures from the manufacturer’s published datasheet. Exact specs depend on the model and configuration installed and are confirmed on your quote.
| Specification | Detail |
|---|---|
| System | SigenStor all-in-one energy storage |
| Module size | BAT 5.0: 5.2kWh usable · BAT 8.0: 7.8kWh usable |
| Maximum capacity | Up to 6 modules, about 48kWh |
| Chemistry | Lithium iron phosphate (LiFePO4) |
| Enclosure rating | IP66 |
| Operating temperature | -20°C to 55°C |
| Warranty | 10-year battery warranty (manufacturer terms apply) |
| Options | Backup gateway, DC EV charger module |
| SimpliSolar package | 32kWh with 10kW inverter, from $10,499 installed |
Is Sigenergy SigenStor Right for Your Home?
SigenStor suits households that use a lot of electricity after the sun goes down: large families, homes with ducted air-conditioning or a pool, and anyone charging an electric vehicle at home. Its stackable design means you can install a large battery in a compact footprint.
It is also a good fit if you are planning ahead. If an EV is on the horizon, the optional DC charger module can be added to the same stack, which keeps the garage wall tidy and lets the system manage solar, battery and car charging together.
For smaller homes with modest evening use, a smaller battery or our 6.65kW package may be better value. We compare options honestly at the site visit.
Why Homeowners Choose Sigenergy
- All-in-one design keeps the install tidy
- Large capacity in a small footprint
- IP66 rating for indoor or outdoor installation
- EV charger module can share the same stack
- LFP chemistry with a 10-year warranty
Things to Weigh Up
- Higher upfront price than our entry battery packages
- Capacity above 28kWh earns only 15% of the rebate rate per kWh
- Backup needs the backup gateway and agreed backup circuits
- Sigenergy issued a recall affecting some single-phase controllers in late 2025; we confirm any unit we install carries the manufacturer’s remedy
Battery Rebate on a Sigenergy System
Under the federal Cheaper Home Batteries Program, a Sigenergy battery installed by an SAA-accredited installer earns small-scale technology certificates (STCs) based on its usable capacity. From 1 May 2026 the first 14kWh earns the full rate, capacity between 14 and 28kWh earns 60% and capacity between 28 and 50kWh earns 15%. We claim the certificates for you and take the value off your invoice.
The rate steps down every six months until 2030, and the rebate is set by your installation date, not the date you sign. Read the full guide on our battery rebate page.
How Sigenergy Compares With Other Batteries We Install
Every brand has strengths. We recommend the battery that suits your usage, your inverter and your budget, not the one with the biggest margin.
| Battery | Usable capacity | Expansion | SimpliSolar price |
|---|---|---|---|
| Sungrow SBR HV | 3.2kWh modules | Up to 25.6kWh per stack | From $7,999 (30kWh package) |
| Sigenergy SigenStor | 5.2kWh or 7.8kWh modules | Up to about 48kWh per stack | From $10,499 (32kWh package) |
| Tesla Powerwall 3 | 13.5kWh per unit | Expansion units available | Quoted per home |
| GoodWe Lynx Home U | 5.4kWh modules | Up to 32.4kWh | Quoted per home |
| Alpha ESS | 28kWh package | Package | From $5,499 |
All home batteries → · Brands we install → · Solar + battery packages →
Backup Power Needs a Backup Circuit
SigenStor can supply your home during a grid outage when it is installed with Sigenergy’s backup gateway and the backup circuits are agreed and wired at installation. Without that, the system shuts down with the grid for safety.
During your site visit we agree which circuits matter most, such as the fridge, lights, Wi-Fi and selected power points, and wire them to the backup supply. We also confirm whether your switchboard needs work and include it in the fixed price.
- SAA-accredited installers on every job, never subcontractors
- Connection application lodged with your network for you
- Monitoring app set up on your phone at handover
- Local after-care from our Mount Druitt team, operating since 2017
What Our Customers Say
“Fantastic service from Fahad — quick inspection, sound advice, and great value.”
“Working great so far with no bills and running effectively off-grid.”
“Outstanding experience from start to finish.”
Sigenergy Battery FAQs
How much does a Sigenergy battery cost?
Our Sigenergy package with 32kWh of storage and a 10kW inverter starts from $10,499 installed. Your exact price depends on your site, switchboard and backup requirements and is fixed in writing before work starts.
How much rebate does a Sigenergy battery get?
A 32kWh SigenStor installed between May and December 2026 earns around 156 STCs, worth roughly $5,900. A 15.6kWh system earns around 101 STCs, roughly $3,800. We apply the rebate at the point of sale.
What size Sigenergy battery do I need?
We size it from your actual usage. Many homes are well served by 15–25kWh; large homes with ducted air, a pool or an EV often benefit from 30kWh or more. Remember that rebate value per kWh falls above 14kWh and again above 28kWh.
Can SigenStor charge my electric car?
Yes, with the optional DC EV charger module, which sits in the same stack and can use solar and battery energy to charge your car.
Was SigenStor affected by a recall?
Sigenergy issued a recall in late 2025 affecting some single-phase energy controllers. Any system we install is checked to make sure it carries the manufacturer's remedy.
Is the Sigenergy battery weatherproof?
SigenStor is rated IP66, so it can be installed indoors or outdoors. We still choose a shaded, well-ventilated location to help with performance and lifespan.
Will SigenStor power my home in a blackout?
Yes, when installed with the backup gateway and agreed backup circuits. We explain exactly what will stay on before installation.
Sources: Sigenergy SigenStor battery datasheet · Product Safety Australia – SigenStor EC SP AU energy controller recall · Clean Energy Regulator – Sigenergy single-phase energy controller recall (Nov 2025) · Clean Energy Regulator – battery rebates. Specifications are taken from manufacturer datasheets and may change; your quote confirms the exact model.
Get a Fixed-Price Sigenergy Battery Quote
Book a free site visit with our SAA-accredited team. We design a system for your roof and bill, apply the rebates and give you a written price with no obligation.
Mon–Fri 8am–6pm · Sat 9am–3pm
- No obligation, no pushy sales
- Fixed written price before any work
- Battery and STC rebates applied for you
- Installed by our own SAA-accredited team