As solar adoption continues to rise across Australia, more homeowners are turning to battery storage solutions to increase energy independence, reduce grid reliance, and maximise solar savings. One of the most promising entrants in the energy storage market is the Sigenergy SigenStor Battery is a sleek, intelligent, all-in-one system designed to power the future.
Sigenergy SigenStor Battery review, we explore everything Aussie homeowners need to know—from models and specs to pricing and performance.
What is Sigenergy?
The Sigenergy SigenStor is an all-in-one residential energy storage solution designed to work seamlessly with solar panels. Manufactured by Sigenergy, this system incorporates a hybrid inverter, battery modules, EV charger, and AI-powered energy management—all housed within a modular and scalable design.
Launched in 2023, Sigenergy has quickly established a solid presence in Australia thanks to its compatibility with hybrid solar setups and the rising demand for off-grid and backup power solutions.
Sigenergy Review
“We installed the 20 kWh SigenStor for our Sydney home, and our electricity bill dropped to nearly zero. The mySigen app is incredibly intuitive, and we love tracking our usage in real-time.” – Daniel T.
Key Features of Sigenergy SigenStor Battery
| Feature | Details |
| Modular Design | Scalable from 5 kWh to 48 kWh |
| Inverter Integration | Built-in hybrid inverter (5kW–25kW options) |
| IP66 Rating | Weatherproof, ideal for Australian outdoor use |
| App & AI Energy Management | Smart control via mobile app, time-of-use optimization |
| Expandable | Add more battery packs as your energy needs grow |
| All-in-One System | Solar Inverter, battery, EV charger & energy hub in one |
Technical Specifications
| Component | Specification |
|---|---|
| Battery Capacity | 5 kWh to 48 kWh |
| Inverter Type | Hybrid, single-phase & three-phase |
| Efficiency | Up to 98% inverter efficiency |
| IP Rating | IP66 (outdoor suitable) |
| Operating Temp | -20°C to 55°C |
| Communication | WiFi, Ethernet, 4G |
Sigenergy Battery Models & Sizes
Sigenergy offers a flexible stackable battery system, where each battery module provides 5kWh capacity. You can scale up in 5kWh increments depending on your household energy consumption.
| Model Stack | Usable Capacity | Max Power Output |
| SigenStor 1 Stack | 5 kWh | 3.84 kW |
| SigenStor 2 Stack | 10 kWh | 7.68 kW |
| SigenStor 3 Stack | 15 kWh | 11.52 kW |
| SigenStor 4 Stack | 20 kWh | 15.36 kW |
| SigenStor 5 Stack | 25 kWh | 19.2 kW |
| Up to 48 kWh | Scalable | ~36 kW |
Each stack is vertically assembled, making the system compact and aesthetically modern for both residential and small commercial properties.
Sigenergy Battery Price in Australia (2025)
Pricing can vary depending on installer markup, battery location, and system configuration, but here’s a rough guide:
| Battery Size | Approx. Cost (Installed) |
| 5 kWh | $7,000 – $8,500 |
| 10 kWh | $11,500 – $13,000 |
| 15 kWh | $15,000 – $17,500 |
| 20 kWh | $19,000 – $21,500 |
Note: These prices include the built-in inverter and energy hub. Keep in mind that you may be eligible for rebates like the Federal Battery Rebate 2025 and various state-level incentives in NSW, VIC, SA, and QLD.
Warranty & Lifespan
Sigenergy offers a 10-year product warranty on both the battery modules and the inverter unit.
- Battery warranty: 10 years or 6,000 cycles (whichever comes first)
- Performance guarantee: Retains 70% of usable capacity after 10 years
- Inverter warranty: Also 10 years, extendable in some cases
This positions Sigenergy at the same level as Tesla Powerwall and LG RESU in terms of long-term reliability.
Technical Specifications
| Specification | Value |
| Battery Type | Lithium Iron Phosphate (LFP) |
| Usable Capacity (per module) | 5 kWh to 48kWh |
| Efficiency | Up to 98% inverter efficiency |
| Operating Temp. Range | -20°C to 55°C |
| Communication Protocols | Ethernet, Wi-Fi, 4G |
| Dimensions (5 kWh) | 650 x 400 x 250 mm (approx.) |
| Weight (per module) | ~50 kg |
| Protection Rating | IP66 |
| Inverter Type | Hybrid, single-phase & three-phase |
Comparing Sigenergy with Other Battery Storage Solutions
| Feature | Sigenergy SigenStor | Tesla Powerwall 2 | Sonnen Eco 10 |
| Max Capacity | 48 kWh | 13.5 kWh | 20 kWh |
| AI Energy Management | Yes (GPT-4 powered) | Basic | Yes |
| EV Charger Integration | Yes | No | No |
| Modular Expansion | Yes | No | Limited |
| Installation Time | ~15 minutes | ~4 hours | ~3 hours |
Smart Home & Energy Management
One of the standout features of Sigenergy’s system is its built-in AI-powered energy management platform, which lets users:
- Monitor energy flow in real time
- Optimize usage during peak/off-peak tariffs
- Control EV charging schedules
- Integrate with home automation platforms
This is particularly valuable for Australian households using time-of-use energy plans or looking to maximise self-consumption.
Pros & Cons
Pros:
- Fully integrated all-in-one unit
- Extremely modular and scalable
- IP66-rated (ideal for harsh Aussie weather)
- Smart energy management with mobile app
- Fast-charging capabilities for EV integration
Cons:
- Higher upfront cost than some competitors
- Still relatively new in the Australian market (less long-term data)
- Limited compatibility with third-party inverters (designed for full-stack use)
Is the Sigenergy Battery Worth It?
If you’re looking for a future-proof, smart energy storage solution in Australia, the Sigenergy SigenStor is one of the most advanced systems available. Its modularity, robust build, smart energy features, and integrated inverter make it a compelling choice for both energy independence and return on investment.
While the initial price may be slightly higher than entry-level batteries, the value it delivers in performance, scalability, and technology makes it a wise long-term investment.
Want to Install a Sigenergy Battery in Australia?
At Isolux Solar, we offer tailored solar + battery packages that include Sigenergy SigenStor systems—designed and installed by Clean Energy Council accredited professionals.
Contact us today to get a free quote or learn more about battery rebates available in your state.
Frequently Asked Questions (FAQs)
Is the SigenStor suitable for off-grid use?
Yes, it supports both on-grid and off-grid applications with full backup capabilities.
Can I add more batteries later?
Yes, you can easily upgrade from 5 kWh to 48 kWh.
