Battery brands and comparisons
Sigenergy vs Sungrow: which home battery suits your home? (2026)
The short answer
Both are widely installed in Australia and on the approved list for the federal battery rebate. The main differences: Sigenergy is an all-in-one (inverter, battery and an optional EV charger) with whole-home backup through its Gateway; Sungrow pairs SBH or SBR batteries with a Sungrow hybrid inverter that has backup built in. Sungrow's warranty doesn't cap cycles for daily self-consumption but now has heat limits; Sigenergy's is throughput-limited and needs a permanent internet connection. Sigenergy is on 5 of the 5 VPP lists we checked, Sungrow on 4.
Side by side
| Sigenergy SigenStor | Sungrow SBH / SBR | |
|---|---|---|
| What it 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. | High-voltage batteries that connect on the DC side of a Sungrow hybrid inverter (SH RS single-phase or SH T three-phase). The inverter runs the solar, the battery and backup. |
| 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. | SBH: 15 to 40 kWh in 5 kWh modules (SBH150 to SBH400), up to 4 stacks in parallel. SBR: 6.4 to 25.6 kWh in 3.2 kWh modules. |
| Phases | Single-phase controllers 5 to 12 kW; three-phase 5 to 30 kW. | Single-phase (SH5.0/6.0RS, SH8.0/10RS) and three-phase (SH5–10T, SH15–25T) hybrid inverters. |
| 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. | Set by the inverter: about 6.6 kW of battery power on the SH5.0/6.0RS, 10 kW on the SH8.0/10RS, and 5 or 10 kW discharge on the SH5T/SH10T. |
| Backup | 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. | Backup is built into the hybrid inverter. The SH8.0/10RS offers whole-home backup, and the three-phase SH5T/SH10T has a built-in 63 A bypass for whole-home backup; switch-over is under 10 ms on the inverters that state it. |
| 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. | Sungrow describes its SH8.0/10RS as suited to retrofits. How your existing inverter would stay connected depends on your system: ask the installer. |
| Build | Lithium iron phosphate (LFP), IP66, indoor or outdoor, floor or wall; rated for −20 to 55 °C. | LFP, IP55, indoor or outdoor, floor-standing; charges from 0 °C and discharges from −20 °C, up to 50 °C. |
| Warranty | 10 years on the battery and the Energy Controller; 70% of usable capacity at 10 years or a throughput limit, whichever comes first. | 10 years; at least 70% of capacity at 10 years, with unlimited cycles for daily self-consumption and backup. |
| VPPs listing it | 5 of the 5 we checked | 4 of the 5 we checked |
| Western Australia | Listed by Horizon Power. On Synergy's Supported Solutions List as provisional (not yet ready for its VPP) on 1 October 2026. | On Synergy's Supported Solutions List as provisional (not yet ready for its VPP) on 1 October 2026; not on Horizon Power's battery list. |
How do the Sigenergy and Sungrow warranties compare?
Sigenergy and Sungrow both give a 10-year battery warranty; the conditions differ:
- Sigenergy: 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.
- Sungrow: 10 years; at least 70% of capacity at 10 years, with unlimited cycles for daily self-consumption and backup. Other uses (or a mix that includes them) are capped at about 2.8 MWh per kWh, e.g. 56 MWh for an SBH200. New in version 9.0 (May 2026): the performance warranty assumes the battery doesn't sit in high heat for long periods each year (limits on days above 35 °C and 40 °C), so the installation spot matters. The system must be monitored in Sungrow's iSolarCloud; without complete data, Sungrow honours at least 4 years.
Which VPPs take Sigenergy and Sungrow batteries?
Each VPP keeps its own list of the batteries it takes; the table shows where Sigenergy and Sungrow stand on each.
| VPP | Sigenergy | Sungrow |
|---|---|---|
| Amber SmartShift | Yes | Yes |
| AGL VPP | Yes | Yes |
| Origin (Loop) | Yes | Yes |
| ENGIE VPP | Yes | Not listed |
| GloBird ZEROHERO VPP | Yes | Yes |
A recall to know about
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.
Which suits your home?
Sigenergy tends to suit homes that want one system for solar, battery and whole-home backup, three-phase homes with big arrays, and homes planning an electric car (the optional DC charging module).
Sungrow tends to suit homes that want a widely installed inverter-and-battery pair, larger battery stacks (SBH to 40 kWh, up to 4 in parallel), and heavy daily cycling for self-consumption, which its warranty doesn't cap.
Either way, the federal rebate is the same for the same usable size (about $3,663 on 15 kWh if installed now), and the price depends more on the size, the inverter and your home than on the badge: most homes pay about $700 to $850 per kWh installed after the rebate (October 2026). More on each: Sigenergy SigenStor · Sungrow SBH and SBR batteries.
Questions people ask
Is Sigenergy better than Sungrow?
Neither is better for every home. Sigenergy is an all-in-one with whole-home backup through its Gateway and an optional EV charger; Sungrow pairs batteries with a Sungrow hybrid inverter and its warranty doesn't cap cycles for self-consumption. Choose on backup, phases, VPP and warranty conditions.
Which has the better warranty, Sigenergy or Sungrow?
Both run 10 years to 70% capacity. Sungrow's has unlimited cycles for daily self-consumption and backup but heat limits; Sigenergy's is throughput-limited (about 3.7 MWh per kWh) and needs a permanent internet connection.
Do Sigenergy and Sungrow both get the battery rebate?
Yes, both are on the Clean Energy Council approved list. The rebate depends on the usable size and the installation date: about $3,663 on 15 kWh if installed now.
Do Sigenergy and Sungrow work with Amber?
Both are on Amber SmartShift's list (checked 15 October 2026). Sigenergy needs a Sigen Gateway or Sensor; Sungrow is supported with one SH hybrid inverter per site.
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
- Sungrow: SBH battery (Australia)
- Sungrow: SBR battery (Australia)
- Sungrow: HV Battery Limited Warranty V9.0 (May 2026)
- Sungrow: SH8.0/10RS datasheet
- Amber SmartShift: compatible batteries
- AGL VPP: compatible batteries
- Origin (Loop): compatible batteries
- ENGIE VPP: compatible batteries
- GloBird ZEROHERO VPP: compatible 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.