In the rapidly evolving world of home energy solutions, the Sigenergy SigenStor has emerged this year as a contender. This solar system combines an inverter, battery storage, and optional electric vehicle charging.
But with all the modular options, it can be easy to get lost as you customise it for your home.
At Penrith Solar Centre, we know a thing or two about installing inverters and batteries. We’ve been at it for a decade. Don’t worry about sorting through potentially confusing information, we’ve done it for you.
In this article, you’ll learn about the following:
- Key Features of the Sigenergy SigenStor Solar System
- Sigenergy SigenStor Modular and Scalable Configuration
- Sigenergy SigenStor’s Advanced AI-powered Monitoring Features
- Sigenergy SigenStor Safety Features
- Sigenergy SigenStor Technical Specifications
- Pros and Cons of the Sigenergy SigenStor Solar Panel and Battery System
By the end of this article, you’ll understand what the SigenStor can do for your home. Onwards!
Key Features of the Sigenergy SigenStor Solar System
The SigenStor solar energy system is a new solar inverter and battery combination. You can directly input energy from your solar panels into the battery for minimal efficiency losses. When combined with a bidirectional EV charger, you can even charge the SigenStor from your car.
Let’s dive into the details.
Integrated Design
The SigenStor solar system is designed with the user in mind. It combines five components into one unit. This all-in-one approach includes:
- Hybrid Inverter: Responsible for converting the direct current (DC) electricity generated by the panels on the roof into alternating current (AC) electricity that your home can use.
- Battery Storage: The modular, stackable battery units store excess energy when the sun is shining for use when it’s dark or during peak demand times. A solar battery will provide true energy independence and this one picks up the ball and runs with it, but we’ll get into that shortly.
- Battery Power Conversion System (PCS): Think of this component as a translator. It transforms the DC power stored in the battery modules into AC power that can be used in your home.
- Energy Management System (EMS): This is AI-powered consumption monitoring software. It intelligently manages the flow of energy by evaluating your real-time energy usage patterns and adjusting the battery to make the most of your savings by charging and discharging when you use it.
- Optional EV DC Charger: This optional feature provides direct DC charging for electric vehicles. While the charger can be AC-coupled, DC charging is much more efficient.
This integrated, modular design means that you’ll need less equipment, freeing up wall space and simplifying the installation process.
If you’re interested in learning a bit more about the benefits of solar batteries, you might want to start with the following article titled, 7 Benefits of Adding a Battery to Your Solar System.
Sigenergy SigenStor Modular and Scalable Configuration
The exciting thing about the SigenStor solar system is how customisable it is. With stackable, modular components, you’ll have options for your solar system today and in the future.
Modular Design
Battery modules are available in 5kWh or 8kWh. These modules can be stacked to achieve your desired storage capacity.
It can range from as little as 5kWh or up to 48kWh (6 x 8kWh modules). Or you can stack 20 SigenStors stacked 6-high together for a total of 960kWh.
Please Note: At Penrith Solar Centre, we’re only offering the 8kWh modules. We feel 5kWh alone is too little storage for any Aussie household.
Scalable and Futureproofed
The hybrid inverter comes in single-phase and three-phase options. The single-phase SigenStor has two Maximum Power Point Trackers (MPPTs) and the three-phase version supports up to four strings.
Battery units can be added at a later date with each Energy Controller (inverter) supporting six battery modules.
The best news about the battery is that each battery module has its own Power Conversion System. This means you can add new battery modules to old ones with minimal headaches. They each operate separately from each other. This makes it easy to add more battery storage down the road.
If you’re interested in learning a bit more about the battery market, you might want to check out the following article titled, Best Home Solar Batteries for 2025.
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Sigenergy SigenStor’s Advanced AI-powered Monitoring Features
One of our favourite features of this solar power system is the energy use monitoring platform. Each system is equipped with mySigen App. It provides real-time monitoring of energy production, consumption, and storage.
And like any energy use monitoring software, you’ll receive alerts for any issues with your system. With this much insight into your solar, you’ll be able to improve your energy use and quickly troubleshoot any problems.
Many customers who are new to solar might need a little help programming their system. Understanding your energy usage patterns and customising your system around them can have a bit of a learning curve. Even the most intuitive apps can be difficult for some.
mySigen App has an AI mode that’s been integrated with GPT-4. It observes how you use electricity and automatically takes control of your system. If you want it to, that is.
The mySigen App can automatically access information about your system, information about dynamic tariffs, and weather data.
It can use this information along with your energy use patterns, to import or export energy and charge and discharge the battery in order to save you money and protect your home in a blackout.
It’s pretty cool, actually. There’s nothing else like it in the solar industry.
If you’re interested in learning a bit more about the importance of monitoring and programming your energy, you might want to check out the following article titled, What is Consumption Monitoring?
Full Off-Grid Capability and Blackout Protection
If you want complete energy independence, SigenStor has you covered. This system isn’t just another battery; it’s designed to keep your home or business powered, no matter what’s happening with the grid.
Here’s how it works:
- It can run completely off-grid with solar panels.
- It pairs seamlessly with a diesel generator using a two-wire startup function.
- It can operate as a grid-tied system with backup power.
Even in a total blackout, SigenStor keeps the lights on by using stored solar energy. Once the sun comes up, your panels will take over, powering your home and recharging the battery whether the grid is back or not.
For homeowners needing true three-phase backup, SigenStor is in a league of its own. Unlike other batteries, it supports synchronous three-phase backup. That means all three phases of your home will stay powered during an outage instead of just one.
If you have high-powered appliances like large air conditioning units or industrial equipment that rely on a three-phase supply, they’ll keep running smoothly without skipping a beat.
If you’ve been waiting for a three-phase backup solution that actually works, this is it.
If you’re interested in learning a bit more about single-phase and three-phase sites, you might want to check out the following article titled, Single-Phase vs. Three-Phase: How Are They Different?
Power up your savings. Click here.
Sigenergy SigenStor Safety Features
In any solar system, safety is the most critical consideration. The SigenStor has multiple safety features. After all, these systems hold a lot of energy. They need to run safely in your home.
The SigenStor takes safety seriously, with multiple built-in protections to keep things running smoothly and minimise any risks.
Here’s what makes the SigenStor one of the safer battery options on the market:
Temperature Monitoring – Batteries work best within a specific temperature range when it isn’t too hot or too cold. Extreme temperatures accelerate their natural degradation rate, and they start losing efficiency.
The SigenStor constantly monitors its internal temperature and adjusts as needed. This prevents overheating, power loss, or system shutdowns, keeping the system safe and reliable.
Internal Fire Extinguisher – This is a standout feature that most other battery brands don’t include. In the unlikely event of a battery-related fire, the SigenStor has an internal fire extinguisher that automatically kicks in to put it out before it spreads. It’s an extra layer of protection that gives homeowners peace of mind.
Short-Circuit & Surge Protection – We’ve all seen what happens when power surges hit: blown fuses, fried appliances, and, in worst-case scenarios, electrical fires. The SigenStor has built-in surge protection to shield the system from power spikes, whether from grid fluctuations, lightning strikes, or sudden electrical surges.
Safe Battery Chemistry (LFP Technology) – Not all batteries are created equal. The SigenStor uses Lithium Iron Phosphate (LFP) battery cells, which are inherently safer than standard lithium-ion options. LFP batteries don’t overheat as easily and last longer than other battery types.
With all these safety measures in place, the SigenStor is designed to be worry-free. It keeps itself cool, protected, and monitored 24/7. You can focus on enjoying clean solar power without stressing about potential risks.
If you’re interested in learning a bit more about your energy needs, you might want to check out the following article titled, How Much Solar Do You Need?
Sigenergy SigenStor Technical Specifications
It’s important to understand the technical aspects of the SigenStor solar system. After all, it’s an investment.
Please Remember: Because the SigenStor is so customisable to your unique energy needs and goals, there are multiple configurations with different technical specifications depending on how we install your system.
The manufacturer has multiple options for inverter sizing. At PSC, we’re limiting our inverter selection to scale up with solar and battery sizes.
Below is what we’re installing. Here are the key specs:
Inverter Specifications
Single-phase Inverter:
- Power Output: Available in 6kW and 10kW models.
- MPPTs: Two.
Three-phase Inverter:
- Power Output: Available in 5kW, 10kW, 15kW, 20kW, 25kW, and 30kW models.
- MPPTs: Up to four.
Battery Specifications
Multiple Capacities: As we mentioned, PSC will only install the battery in 8kWh increments.
Scalability: You can stack up to 6 batteries per inverter and link together up to 10 SigenStors to maximise your storage. Homeowners will not need that much storage, but it’s nice to have options.
EV DC Charger
Charging Power: The optional EV DC charger is available in one power size: 25kW. It can also be installed as AC-coupled with charging power ranging from 11kW to 22kW.
Cable Lengths: The charging cable is 10 metres.
If you’re interested in learning a bit more about solar payback periods, you might want to check out the following article titled, What is the Payback Period for Solar Panels in Australia?
Let’s talk solar savings. Click here.
Pros and Cons of the Sigenergy SigenStor Solar Panel and Battery System
Like any solar component, the SigenStor has its strengths and weaknesses. Here’s a balanced look at its advantages and limitations.
Pros
Fully Integrated System:
- Unlike many competitors, the SigenStor combines an inverter, battery storage, and optional EV charger in a single package.
- Reduces the need for additional components and wiring, simplifying installation.
Scalable Battery Storage:
- Homeowners can start with an 8kWh battery and expand over time by stacking additional modules.
- This modularity allows you to adjust capacity as your energy needs change.
Strong Solar Input Capacity:
- Multiple inverter sizes to hone in on the best fit for your solar panels.
- Includes multiple MPPT channels, improving efficiency when panels face different directions across multiple roof faces.
Real-Time Monitoring and Smart Features:
- The mySigen app provides detailed insights into energy generation, battery levels, and household consumption.
Optional DC EV Charger:
- Supports direct DC charging, which is faster and more efficient than AC chargers.
- Can be configured for Vehicle-to-Home (V2H) and Vehicle-to-Grid (V2G) functionality, enabling homeowners to use their EV battery as a backup power source. This option is only available if the vehicle allows it. Teslas do not provide this option, but other EVs do.
Advanced Safety Features:
- Includes overcharge protection, temperature monitoring, and an internal fire extinguisher.
- LFP (Lithium Iron Phosphate) chemistry offers greater thermal stability compared to traditional lithium-ion batteries.
Three-Phase Option for Larger Homes:
- Unlike some competing products (such as the Tesla Powerwall 3, which is single-phase only), the SigenStor is available in a three-phase version.
- This makes it a better choice for homes with high energy demands or three-phase grid connections.
Competitive Warranty:
- Sigenergy offers a 10-year warranty on the SigenStor, which aligns with industry standards for premium battery systems.
Cons
EV Charger Not Standard (Costs Extra):
- While the SigenStor supports a built-in EV charger, it’s not included by default.
- Homeowners must purchase the EV charger module separately, increasing overall system costs.
Newer Brand with Limited Track Record:
- Sigenergy is a relatively new player in the solar industry, founded in 2022.
- While their rapid expansion is impressive, they lack the long-term track record of brands like Tesla or Enphase.
- Some homeowners may hesitate to invest in a system from a newer manufacturer.
Software & App Still Evolving:
- The mySigen app is feature-rich, but as a newer platform, it may not yet be as refined or intuitive as Tesla’s Powerwall app or Enphase Enlighten.
- Future software updates could address this, but early adopters might experience occasional bugs or missing features.
If you’re interested in learning a bit more about the warranties for the products we install, you might want to check out the following article titled, A Complete Guide to Solar Warranties.
Get started with solar by clicking here.
Is the SigenStor a Good Choice for Homeowners?
The Sigenergy SigenStor is an impressive all-in-one solar inverter, battery, and EV charger system that offers modularity, advanced safety features, and smart monitoring.
Best for Homeowners Who Want:
- A scalable battery system with modular expansion.
- A three-phase inverter option for better power balancing and true three-phase backup.
- EV charging integration (especially with V2H/V2G capability).
Not Ideal for Homeowners Who Want:
- A well-established brand with a long track record that’s been put through the paces.
At PSC, we install a variety of solar systems, and the Sigenergy SigenStor is the new kid on the block. It’s a home energy system that we believe in. We wouldn’t install anything we wouldn’t put on our own homes. If you’re in the market for a great solar and battery combination, you’ll be hard pressed to find a better one than this one.
If you’re interested in learning a bit more about solar batteries, you might want to start with the following article titled, Adding a Battery to a Solar System.
