Launched in Australia in late 2023, the Sigenergy SigenStor is a modular, all-in-one energy storage system that integrates solar inverters, battery storage, and electric vehicle (EV) charging. Founded in 2022 by Tony Xu, a former Huawei solar division president, Sigenergy has quickly established itself with a team of over 600 employees and a focus on cutting-edge technology. The SigenStor’s unique five-in-one design combines a photovoltaic (PV) inverter, battery power conversion system (PCS), battery pack, energy management system (EMS), and an optional EV DC charger, making it a versatile solution for modern energy needs.
The system’s modular design allows homeowners to scale storage capacity from 5 kWh to 48 kWh per stack, with the potential to parallel multiple stacks for commercial applications. Its IP66 rating ensures durability for indoor or outdoor installations, and advanced safety features, including five layers of protection, set it apart. But how does it perform in real-world scenarios, and is it worth the investment? Let’s dive deeper.
Key Features of the Sigenergy Battery
The Sigenergy SigenStor stands out for its forward-thinking design and functionality. Here are its top features:
- Modular Scalability: Stackable battery modules (5 kWh or 8 kWh) allow customisation from 5 kWh to 48 kWh per tower, ideal for small homes or large commercial setups.
- Bi-Directional EV Charging: The optional 25 kW DC charger supports vehicle-to-home (V2H) and vehicle-to-grid (V2G) applications, a rare feature in the market.
- Advanced Safety: Five layers of protection, including AI-monitored temperature sensors, aerogel insulation, and an internal fire extinguisher, ensure top-tier safety.
- AI-Powered App: The mySigen app, integrated with GPT-4, offers real-time monitoring, troubleshooting, and automated energy optimisation to maximise savings.
- Off-Grid Capability: The system supports seamless off-grid operation with the correct gateway, making it suitable for remote properties.
SigenStor Safety Features
In addition to using LFP (lithium-iron phosphate) battery cells - a very stable Li-ion chemistry - the SigenStor has five layers of protection :
- Multiple advanced temperature sensors monitored by AI.
- Internal fire suppression system - aerosol based, claimed to extinguish fires within 4 seconds.
- Decompression valve.
- Aerogel-insulated pads between cells to prevent spread of heat.
- High-temperature-resistant insulation.
What Makes Sigenergy Stand Out?
1. Industry-Leading Safety Features
When it comes to home batteries, safety is critical. Sigenergy takes this seriously by incorporating multiple layers of protection. Each module in the system has seven temperature sensors and an AI-powered monitoring system that tracks conditions in real time. If the system detects abnormal heat or gas build-up, an integrated fire suppression system kicks in to prevent potential hazards.
Compared to other battery systems, Sigenergy’s safety features are market leading. If safety is your top priority, Sigenergy is hard to beat.
SigenStor is built for peace of mind with comprehensive 5-layer battery and system safety protection, as well as a human-safe, low-voltage design (<36V). Featuring an IP66-rated enclosure and robust 280 Ah battery cells for extended cycle life, SigenStor ensures seamless power continuity with 0ms load-side disruption, making it the ideal choice for dependable, resilient energy storage.
2. Flexible and Scalable Design
One of the major selling points of Sigenergy is its scalability. Whether you need 16 kWh or up to 48 kWh of storage, you can customise the system to meet your energy needs. The battery modules can be either wall-mounted (for smaller setups) or floor-mounted for larger systems. You can also install multiples of the 48kWh stacks if you need even more storage.
The compact design also makes installation more convenient. For example, a typical setup with 16 kWh of storage takes up roughly the height of a standard office desk. And because it’s IP66-rated, the battery can be installed indoors or outdoors without worrying about water or dust damage.
3. Real-Time Monitoring and Visual Indicators
Sigenergy’s app allows you to track the system’s performance, monitor battery health, and even predict possible power outages. But what really sets it apart is the state-of-charge indicator built directly into the battery.
This unique feature uses external lights to show how much power is stored in the battery. For example, if the battery is 50% charged, the lights will illuminate halfway up the unit. If the battery is discharging or charging, you can track the progress visually. And if there’s ever an issue, a large red light will alert you, making it easy to know when to check the system.
4. Versatility in AC and DC Coupling
Whether you have an existing solar system or are installing a brand-new one, Sigenergy has you covered. It supports both AC and DC coupling, meaning it can integrate with an older solar inverter or be part of a new installation. It works with single-phase, three-phase, and even off-grid setups, giving you flexibility for different energy configurations.
This versatility makes Sigenergy a great choice if you want to expand your solar capacity or add battery storage to an existing system without replacing your current inverter.
5. Add More Power Without Performance Loss
Many expandable battery systems face common challenges over time. Typically, adding new modules to an older setup can be limited by degradation, meaning that new modules often perform only as well as the oldest module in the stack.
With SigenStor, each module operates independently of the others and can be optimised individually, allowing you to add new battery modules without worrying about reduced performance.
6. AI-Powered Performance Optimization
SigenStor combines cloud-native technology with advanced AI, including GPT-4, to deliver an adaptable, safe, and optimized energy experience. With intelligent energy management that evolves over time, SigenStor maximizes efficiency, cost savings, and sustainability.
- Energy Planning :AI-driven recommendations maximise savings and system longevity.
- VPP Scheduling :AI optimises energy distribution for VPP participation and efficiency.
- Safety Protection :Real-time AI monitoring ensures safe, reliable energy storage.
- Service Support :AI-powered support delivers instant diagnostics and troubleshooting.
Advanced Features You Won’t Find Anywhere Else
1. Blackout Protection with Instant Backup
Power outages are becoming more common in many areas, and having a reliable backup system is essential. Sigenergy offers instantaneous backup for both single-phase and three-phase homes.
Unlike some other batteries, which can leave you waiting for power to kick back on, Sigenergy’s gateway device ensures that your lights stay on without a flicker. Even better, if your battery depletes during an extended outage, Sigenergy can blackstart, recharging from solar panels even when the grid is down. This is of course assuming you have your solar panels connected directly and there is sun to charge the battery.
2. Electric Vehicle (EV) Integration
Sigenergy is the first battery system on the market to offer DC fast charging for electric vehicles. With this feature, you can charge your EV much faster than with standard AC chargers. This makes it ideal for homeowners with large solar arrays who want to make the most of their renewable energy.
Sigenergy is also vehicle-to-home (V2H) and vehicle-to-grid (V2G) ready, meaning that in near future, you’ll be able to use your car’s battery to power your home or sell energy back to the grid.
Why Sigenergy?
Sigenergy is an industry-leading manufacturer of smart energy storage systems, known for their powerful, modular battery units designed for both residential and commercial applications. With fast charging and discharging capabilities, seamless solar integration, and advanced energy management features, Sigenergy batteries help customers take full control of their energy use.
These systems are ideal for those looking to maximise solar self-consumption, reduce reliance on the grid, and future-proof their energy setup with scalable solutions.
Sigenergy has been recognized as one of the top three home energy storage brands in Australia for 2025, earning the Silver Award in SolarQuotes' "Best Home Batteries in Australia" rankings. This recognition highlights Sigenergy’s cutting-edge technology and exceptional product performance.
The award, organized by SolarQuotes, a leading Australian platform for photovoltaic (PV) installation consulting, is based on feedback from industry professionals. Since 2023, SolarQuotes has surveyed installers to identify the top home battery brands. This year, 594 installers from their network were asked a single question: "If installing a system on your own house today, which brand of batteries would you choose?" A total of 161 responses were received, with Tesla and Sungrow sharing the top spot, while Sigenergy secured second place with 17% of the vote. BYD claimed third place.
Conclusion
As the demand for reliable, efficient, and smart energy storage solutions continues to rise, the Sigenergy battery emerges as a compelling option for homeowners and businesses alike. With its sleek design, intelligent energy management system, and strong performance metrics, Sigenergy aims to set a new standard in the world of solar energy storage.
What sets Sigenergy apart is its combination of innovation and practicality. From intelligent software capabilities to scalable hardware options, it’s clear that this battery was built with both present needs and future demands in mind. Whether you're preparing for energy independence, looking to cut electricity costs, or seeking a reliable backup during outages, the Sigenergy battery is worth a serious look. Ready to take control of your energy future? Reach out to Solar Secure today!
For more details you can visit this link -
https://www.sigenergy.com/en/products/sigenstor