Sigenergy battery storage, installed across the Northern Rivers
SigenStor is the tidiest home energy system we install: hybrid inverter, battery storage and an optional EV DC charger, stacked into a single tower on your garage wall. Sigenergy calls it an AI optimised five in one energy storage system, and paired with the Sigen Energy Gateway it delivers backup with 0ms load side switchover, so a blackout looks like nothing more than a notification on your phone.
Instead of separate boxes for the inverter, battery and EV charger, SigenStor stacks everything on one DC bus. That means fewer conversions, fewer wall penetrations and one app for the lot.
Energy controller
The built in hybrid inverter and energy management system that tops the tower: 5 to 12kW single phase or 5 to 30kW three phase for Australia, with up to 4 MPP trackers.
Battery modules
LFP modules from 5.2 to 9.0kWh usable, stacked 1 to 6 per tower. Sigenergy quotes a 15 minute stackable installation and 100 percent depth of discharge.
EV DC charger option
A 12.5kW or 25kW DC charging module slots into the same tower, with bi-directional V2X operation subject to your EV’s capability. Solar straight into the car, no wallbox needed.
Gateway backup
The Sigen Energy Gateway switches to backup with 0ms load side disruption under manufacturer test conditions, and supports whole home or prioritised circuits, plus a generator input.
The numbers
SigenStor specifications
Specification
Sigenergy SigenStor
Battery module options
BAT 5.0, 6.0, 8.0, 10.0: usable 5.2, 6.0, 7.8 and 9.0kWh per module
Capacity per tower
5 to 54.24kWh (1 to 6 modules per energy controller); multiple towers can run in parallel
Chemistry
LFP (LiFePO4), 100 percent depth of discharge
Continuous power
2.5 to 4.6kW per module, up to 24kW per tower; peak 150 percent of nominal for 10 seconds off grid
Inverter output
5 to 12kW single phase AU, 5 to 30kW three phase AU; max efficiency up to 98.4 percent (three phase)
Backup switchover
0ms load side disruption with Sigen Energy Gateway (manufacturer test conditions)
Warranty
10 years on battery and energy controller; at least 70 percent of usable energy retained at 10 years, or minimum throughput, whichever first. EV DC module 3 years
IP rating
IP66 (battery modules, energy controller and hybrid inverter); Gateway IP55
Operating temperature
Battery minus 20 to 55 degrees C; controller minus 30 to 60 degrees C
Round trip efficiency
Not published by the manufacturer
Specifications per manufacturer datasheets, July 2026. Subject to change.
The hardware
SigenStor up close
The SigenStor stack: inverter, batteries and EV DC module. Image: Sigenergy.
Who it suits
Where SigenStor is the right call
Households that hate blackouts. The Gateway’s 0ms switchover and whole home backup option is the strongest blackout story of any brand we install.
EV owners, current or future. The stackable DC charger turns midday solar into driving range at up to 25kW, and the V2X hardware is there as vehicle support matures.
Anyone short on wall space. One IP66 tower replaces an inverter, battery cabinet and EV charger. It is the cleanest install we do.
Homes that will grow. Start with a couple of modules, stack to six, then parallel more towers if life changes.
And where it is not: if your priority is lowest cost per kilowatt hour, look at Fox ESS. If a longer corporate track record matters most to you, look at Sungrow, founded in 1997 against Sigenergy’s 2022. We will lay those trade offs out straight when you call 0420 141 078.
Honest comparison
Sigenergy vs Sungrow and Fox ESS
Against Sungrow: SigenStor wins on integration, ingress protection (IP66 vs IP55) and backup switchover (0ms with Gateway vs under 10ms via the SH inverter). Sungrow answers with nearly three decades of inverter manufacturing, a huge Australian installed base, and higher continuous power on big SBH stacks.
Against Fox ESS: SigenStor is the more premium, more integrated product; Fox ESS hits a sharper price, stacks larger (to 83.86kWh on CQ6), and carries a longer 12 year warranty on the CQ6 against Sigenergy’s 10. If the EV charger and Gateway do not excite you, the value gap deserves a serious look.
★★★★★
Highly professional. Always happy to answer questions. Installation with Tom, Steve and Scott went very smoothly.
Michael, Google review
Common questions
Sigenergy questions, answered
Is the 0ms backup really seamless?
Sigenergy specifies 0ms load side disruption when SigenStor is paired with the Sigen Energy Gateway, under stated manufacturer test conditions. In practice that means clocks, computers and Wi-Fi stay up when the grid drops. Without the Gateway, backup still works through the energy controller but the whole home switching and generator input come with the Gateway, which is why we usually quote it for blackout focused installs.
Can SigenStor back up my whole house?
Often, yes. The Gateway supports whole home or prioritised backup, and a Gateway Home unit supports up to two SigenStor towers and up to 96kWh of storage. Whether whole home makes sense depends on your loads: big ducted air conditioning or pool heating can drain a battery fast in an outage, so many customers choose prioritised circuits instead. We model it with you before quoting.
How big can a Sigenergy system go?
One tower runs 1 to 6 battery modules, from 5 up to 54.24kWh, with controllers up to 30kW three phase. Beyond that, multiple towers connect in parallel, so the architecture covers everything from a small coastal cottage to a large rural property or business.
Sigenergy is a young company. Should that worry me?
It is a fair question and we would rather raise it than have you find it later. Sigenergy was founded in 2022, is ranked number one globally among stackable all in one storage providers by Frost and Sullivan (2024), and backs the hardware with a 10 year Australian warranty through Sigenergy Australia in North Sydney. We weigh that against the longer histories of Sungrow and Fox ESS in our advice, and you also have our local 12+ year business standing behind the install itself.
Does the EV charger require an EV that supports V2X?
The EV DC module charges any CCS2 vehicle at up to 12.5 or 25kW depending on the module. Bi-directional V2X operation, using the car as extra storage, is limited by what your EV supports and is upgradeable over the air as standards land. We will tell you exactly what your current or planned car can do with it.
Free quote, no pressure
See a SigenStor designed for your home
Fixed quote, honest sizing and a straight answer on backup, from the local crew.
Tell us what you are after and we will come back to you within one business day with real numbers for your property. Prefer to talk? Call 0420 141 078.
