If you have been keeping an eye on the solar industry lately, you have probably noticed a new name popping up everywhere. Sigenergy has hit the Australian market with a fair bit of noise, especially with their “5-in-1” SigenStor system. It is a sleek, stackable unit that looks more like a high-end appliance than a piece of industrial gear.
But in a market where everyone is trying to be the next big thing, the question is: are they any good? Or are they just another shiny box with a premium price tag?
What makes Sigenergy different?
Most battery systems are a bit of a jigsaw puzzle. You have the panels, then a separate inverter on the wall, then a battery cabinet, and then perhaps an EV charger down the track.
The Sigenergy SigenStor approach is different. It is an all-in-one “stack.” You have the SigenStor 5-in-1 Energy Storage System which combines the solar inverter, battery inverter, and energy management into one unit. You can even stack a DC EV charger directly onto the top of it. It’s modular, meaning you can start with a smaller setup and add SigenStack battery modules later as your needs grow.
The Good: Why it’s winning over installers
There is a reason why Sigenergy took out second place in the 2025 SolarQuotes “Installers’ Choice” awards.
- The Speed: It has a near-instant switchover time (about 5 milliseconds). If the grid goes down, your lights and computers barely flicker.
- EV-Ready: It is one of the only systems on the market with a built-in bi-directional DC EV charger. This means you can charge your car directly from your solar panels at high speed or even use your car to power your house (V2G) in the future.
- The App: The mySigen app is widely considered one of the best out there. It uses AI to track your habits and tells you exactly how much money you are saving, down to the individual battery cell level.
- Safety: It uses LFP (Lithium Iron Phosphate) chemistry, which is the gold standard for safety. It even has built-in aerosol fire suppression inside each module.
The Reality Check: What to watch out for
No system is perfect, and being the “new kid on the block” comes with some caveats.
- A Recent Recall: In late 2024 and early 2025, Sigenergy issued a limited recall for some single-phase units in Australia due to an issue with the “quick-connect” AC plugs overheating. While they’ve been proactive in replacing affected units with a redesigned plug, it’s a reminder that new technology can have teething issues.
- The Price: This is not a budget battery. A 10kWh system typically starts around $10,000 to $12,000 installed. While it’s often cheaper than a Tesla Powerwall when you consider it replaces the solar inverter too, it’s still a significant investment.
- New Company: Sigenergy was founded in 2022. While the team is made up of industry veterans, they don’t have the 10-year “on-roof” track record that brands like Sungrow or Tesla have.
Is it worth it for your home?
If you are a tech-savvy homeowner who wants a future-proof system, the Sigenergy is hard to beat. It is particularly great if you are planning to get an EV or if you want a clean, minimalist install that doesn’t take up half your garage wall.
However, if you are purely looking for the cheapest way to store power, or if you prefer a brand that has been around for twenty years, you might look at more traditional options.
Is Sigenergy right for you?
Sigenergy is a bit of a game-changer for the Australian market. It has brought innovation to a space that was starting to feel a bit stagnant. The modular design and the built-in EV charging make it a very smart choice for a modern home.
If you want to see how the numbers stack up for your specific house, or if you’re curious about how many modules you’d actually need, give us a call on 1300 992 922. We can look at your current power bills and show you exactly what a SigenStor setup would do for your bottom line.
