Battery brands and comparisons
Sigenergy SigenStor battery: sizes, backup, warranty and VPPs (2026)
The short answer
An all-in-one system: the Sigen Energy Controller (a hybrid solar and battery inverter) with stackable battery modules underneath, and an optional DC charging module for an electric car. Sizes: 6 kWh and 9 kWh usable modules (earlier 5.2 and 7.8 kWh), 1 to 6 per controller; the approved list runs up to 54 kWh usable. The warranty is 10 years on the battery and the Energy Controller; 70% of usable capacity at 10 years or a throughput limit, whichever comes first. It's on the approved list for the federal battery rebate (about $3,663 on 15 kWh if installed now), and Amber SmartShift, AGL VPP, Origin (Loop), ENGIE VPP and GloBird ZEROHERO VPP list it. Facts from Sigenergy's Australian datasheets and warranty, checked 15 October 2026.
What the Sigenergy SigenStor is
An all-in-one system: the Sigen Energy Controller (a hybrid solar and battery inverter) with stackable battery modules underneath, and an optional DC charging module for an electric car. It's imported and supported in Australia by Sigenergy Australia Pty Ltd (North Sydney).
Sizes and power
| Sizes | 6 kWh and 9 kWh usable modules (earlier 5.2 and 7.8 kWh), 1 to 6 per controller; the approved list runs up to 54 kWh usable. |
|---|---|
| Modules | BAT 6.0 (6.0 kWh usable) and BAT 10.0 (9.0 kWh usable) |
| Phases | Single-phase controllers 5 to 12 kW; three-phase 5 to 30 kW. |
| Power | Each module adds power: about 3 kW (BAT 6.0) or 4.6 kW (BAT 10.0) continuous, up to the controller's rating. |
| Build | Lithium iron phosphate (LFP), IP66, indoor or outdoor, floor or wall; rated for −20 to 55 °C. |
Can you add a Sigenergy battery to existing solar?
Sigenergy's Australian pages describe SigenStor as a hybrid system for the panels it connects to. If you already have solar, ask the installer how your existing inverter would connect. See adding a battery to existing solar.
How does Sigenergy blackout backup work?
Whole-home backup needs the Sigen Energy Gateway (the HomePro gateway has 100 A grid and backup ports); with it, Sigenergy quotes a 0 ms switch-over.
What warranty does a Sigenergy battery have?
The Sigenergy battery warranty is 10 years on the battery and the Energy Controller; 70% of usable capacity at 10 years or a throughput limit, whichever comes first.
- Throughput limit: 22.19 MWh for a BAT 6.0 module and 33.29 MWh for a BAT 10.0 (about 3.7 MWh per kWh), with no unlimited-cycle allowance for self-consumption.
- It needs an internet connection: after 90 days offline the system goes into a safe operating mode, and after more than a year offline cover drops to 5 years.
- Claims within 30 days of a fault; the warranty passes to a new owner if the system stays at the same address.
Source: SigenStor Factory Limited Warranty (Australia and New Zealand), 26 May 2026. Warranty terms change; the version that applies is the one on the day your battery is installed.
Which virtual power plants work with Sigenergy?
| VPP | Sigenergy |
|---|---|
| Amber SmartShift | Yes |
| AGL VPP | Yes |
| Origin (Loop) | Yes |
| ENGIE VPP | Yes |
| GloBird ZEROHERO VPP | Yes |
- Amber SmartShift needs a Sigen Gateway or Sigen Sensor.
- ENGIE's list names the BAT 5.0 and 8.0 modules and the SP and TP controllers.
- While you're on Origin's VPP, the battery app's charge and export settings are switched off; GloBird's VPP runs through the GloBird app.
- Western Australia: Listed by Horizon Power. On Synergy's Supported Solutions List as provisional (not yet ready for its VPP) on 1 October 2026.
A VPP list changes often, so check with the provider before you choose. What VPPs pay and the trade-offs: virtual power plants · Sigenergy vs Sungrow · home batteries compared · which batteries work with which VPP.
How much is the battery rebate on a Sigenergy battery?
The federal battery rebate on a Sigenergy battery depends on its usable size and the installation date: it's the same for every approved brand of the same usable size. On the Clean Energy Council approved list; the BAT 6.0 and BAT 10.0 configurations were approved on 16 April 2026.
| Usable size | Installed now | From 1 January 2027 |
|---|---|---|
| 10 kWh | $2,516 | $2,109 |
| 15 kWh | $3,663 | $3,071 |
| 20 kWh | $4,403 | $3,700 |
| 30 kWh | $5,698 | $4,773 |
Estimates at an STC value of $37. More: the solar battery rebate.
Recalls
In November 2025 Sigenergy recalled some single-phase SigenStor Energy Controllers (EC 8.0, 10.0 and 12.0 kW SP AU, sold 4 March to 18 November 2025) because the AC plug could overheat. The remedy is a firmware update and a free replacement plug, plus 2 extra years of warranty. The battery modules weren't part of the recall.
How much does a Sigenergy battery cost?
A Sigenergy battery's price depends on the size, the inverter and your home more than the badge. Across brands, most homes pay about $700 to $850 per kWh installed after the federal rebate (October 2026); large modular batteries can be lower. See solar battery cost, or get a price for your home.
Who it suits, and what to check
It suits:
- Homes that want whole-home backup through one system (with the Gateway)
- Three-phase homes and large solar arrays (up to 30 kW three-phase)
- Homes planning an electric car, through the optional DC charging module
- Joining a VPP: it's on every main list we checked
Check before you buy:
- The warranty depends on a permanent internet connection
- The performance warranty is throughput-limited for all uses
- If your controller was sold between March and November 2025, check the recall was done
No battery is right for every home. How to compare any two: how to choose a home battery.
Questions people ask
Is Sigenergy a good battery?
It depends what you need. The Sigenergy SigenStor suits homes that want whole-home backup through one system (with the Gateway). Before you buy, check: the warranty depends on a permanent internet connection.
How much does a Sigenergy battery cost?
Most home batteries cost about $700 to $850 per kWh installed after the federal rebate (October 2026). Your price depends on the size, the inverter and your home.
What warranty does a Sigenergy battery have?
10 years on the battery and the Energy Controller; 70% of usable capacity at 10 years or a throughput limit, whichever comes first.
Does Sigenergy work with Amber?
Yes, Amber SmartShift lists Sigenergy (checked 15 October 2026).
Does a Sigenergy battery get the battery rebate?
On the Clean Energy Council approved list; the BAT 6.0 and BAT 10.0 configurations were approved on 16 April 2026. The rebate is about $3,663 on a 15 kWh battery if installed now.
Sources
- Sigenergy: SigenStor (Australia)
- Sigenergy: Sigen Battery 6.0/10.0 AU datasheet (29 Apr 2026)
- Sigenergy: SigenStor Factory Limited Warranty AU/NZ (26 May 2026)
- Sigenergy: Energy Gateway
- Product Safety Australia: SigenStor EC 8.0/10.0/12.0kW SP AU Energy Controllers recall
- Amber SmartShift: compatible batteries
- AGL VPP: compatible batteries
- Origin (Loop): compatible batteries
- ENGIE VPP: compatible batteries
- GloBird ZEROHERO VPP: compatible batteries
- DCCEEW: Cheaper Home Batteries eligibility
- Clean Energy Council: approved batteries
General information, not financial advice. Rebate rules change: figures on this page come from our rules table, last verified 26 September 2026. How we're paid: installers pay Homerise for introducing you. No brand or installer pays to be mentioned in a guide.