The SigEnergy SigenStor is one of the most popular home solar battery systems that Positive Energy Solutions installs across Perth. SigEnergy calls it a ‘5-in-1’ system. One manufacturer builds the hybrid solar inverter and battery management electronics. It also builds the stackable battery modules, EV DC charging, and AI energy management. All the parts work together as one platform, rather than as separate pieces from different brands.
This guide explains how the SigenStor works. It covers which setup suits your home, what it can back up during a blackout, and whether it qualifies for the WA and Federal battery rebates available to Perth homeowners in 2026.
What ‘All-in-One’ Means for a Solar Battery System
‘All-in-one’, or SigEnergy’s preferred term ‘5-in-1’, gets used loosely across the solar industry. For the SigenStor, it means a purpose-built system. The hybrid inverter, battery management system (BMS), LFP battery modules, EV DC charging module, and AI energy management layer all sit on the same platform. There is one monitoring app, one warranty, and one manufacturer responsible for the whole system.
This is different from an AC-coupled battery retrofit. That is where a battery from one manufacturer gets added to an existing solar inverter from another brand. Those systems can work well, and Positive Energy Solutions installs them in the right situations. But the SigenStor’s integrated DC-coupled design usually delivers better round-trip efficiency. It also gives you a simpler support chain if anything goes wrong.
Physically, a SigenStor installation has two main parts. The hybrid inverter is wall-mounted outside. The stackable battery modules are mounted alongside or nearby. The inverter handles all power conversion. This covers solar input, battery charging and discharging, and grid interaction. The BMS inside the battery unit manages cell-level safety and thermal control.
SP and TP: Single-Phase and Three-Phase
SigEnergy makes the SigenStor in two variants to match Australia’s home wiring standards.
The SigenStor SP is the single-phase variant. Positive Energy Solutions installs SP systems in 5 kW and 10 kW inverter sizes. The 10 kW SP backs up your entire home during a grid outage. The 5 kW SP provides essential circuit backup. Most Perth homes built before the mid-2010s have single-phase power. The SP is the more common installation for those properties.
The SigenStor TP is the three-phase variant. Positive Energy Solutions installs TP systems in 5 kW, 10 kW, and 15 kW inverter sizes. Three-phase power is standard in most newer Perth homes, homes with three-phase ducted air conditioning, and homes with EV chargers or other high-draw three-phase loads. The 15 kW TP delivers whole-home backup across all three phases at once. Few home battery systems at this price offer that level of resilience.
Not sure which phase applies to your home? Your Positive Energy Solutions consultant will confirm your phase type before any system design is finalised.
Battery Capacity: 9 kWh to 54 kWh
The SigenStor battery is modular. Each battery module holds 9 kWh of usable capacity. Modules stack together in a single enclosure. A single stack takes up to six modules, giving a maximum of 54 kWh per stack.
Western Power network rules currently allow a maximum of three SigenStor stacks for homes in the Synergy network area. In practice, most Perth homes install one or two stacks. This depends on daily energy use, roof size, solar system size, and budget.
A typical Perth home uses between 20 and 30 kWh per day. This covers heating, cooling, cooking, and general appliances. One stack at 18 kWh or 27 kWh covers overnight use and gives a solid backup buffer for blackouts. Larger households, homes with pools, or homes with electric vehicles may benefit from two stacks.
How the SigenStor Works With Your Solar
DC-coupled is the standard setup for new SigenStor installations. In this setup, your solar panels connect directly to the SigEnergy hybrid inverter. The inverter sends solar power to the battery first. It then converts the extra power to AC for household use and grid export. This direct DC path is more efficient than AC-coupled options, because it skips an unneeded conversion step.
Solar charges the battery during the day. At night the battery discharges to power the home. The Synergy Midday Saver tariff has very low off-peak rates between 9 am and 3 pm. On this tariff, the SigenStor’s AI load management can charge during low-cost periods first, then discharge in the afternoon peak window. On the standard A1 tariff with DEBS feed-in, the system aims to use your own solar first.
The SigenStor can also be set up as an AC-coupled system. This connects it to an existing solar inverter from another brand, without needing to replace it. It suits homeowners with a recent, well-functioning inverter they want to keep. AC-coupled systems have slightly lower round-trip efficiency. They are not eligible for the WA Residential Battery Loan, but they do qualify for the Federal Cheaper Home Batteries Program.
AI Energy Management
The SigenStor includes a predictive AI energy management platform that goes beyond simple time-of-use scheduling. The system checks local solar forecasts and learns your household’s usage patterns over time. It then adjusts charge and discharge decisions on its own, without needing manual input.
In practice, this means the SigenStor can expect a cloudy afternoon and hold more reserve charge. It can also charge from the grid ahead of an evening peak period on a variable tariff. The AI layer is adjustable. You can set your own priorities, or leave the system to manage itself.
Full breakdown of how the AI system works: SigEnergy SigenStor AI Energy Management — How It Works
Backup Power During a Grid Outage
The SigenStor switches to backup mode on its own during a grid outage. The switch takes under 5 milliseconds. This is fast enough that most appliances do not notice the switch.
What the system backs up during an outage depends on your inverter size and phase setup. The 10 kW SP provides whole-home single-phase backup. The 15 kW TP provides whole-home backup across all three phases at once. Smaller inverter sizes back up pre-selected essential circuits only. Your installer confirms these circuits at installation.
During daylight hours the solar array keeps generating power. This extends how long backup power lasts. The SigEnergy app gives real-time details of battery state, current draw, and estimated runtime under your current load.
Full backup guide by inverter size and phase: SigEnergy SigenStor Backup Power for Perth Homes
V2X: Vehicle-to-Everything Support
The SigenStor supports Vehicle-to-Everything (V2X) as an optional feature. You need a compatible bidirectional EV charger and a V2X-capable vehicle. With these, your car’s battery can top up the SigenStor. It can also power your home on its own if the SigenStor runs down.
V2X is not yet widespread in Australian home installations, but the list of compatible vehicles is growing. The SigenStor’s built-in V2X support means the system is ready as more vehicles become available. Positive Energy Solutions can advise on current V2X-compatible vehicle models and charger needs when you install your system.
SigenStor NEO: A New Variant Coming in 2026
SigEnergy has announced the SigenStor NEO. This new product targets standard Australian homes, where easy installation and lower price matter most. The NEO is expected to arrive in Australia in the second half of 2026. It is designed to sit alongside the existing SigenStor platform, rather than replace it.
Specifications, pricing, and rebate eligibility for the NEO were not finalised when we published this guide. Positive Energy Solutions will update its SigenStor advice as NEO availability is confirmed. Contact our team if you want to stay informed.
CSIP-AUS and WA Grid Compliance
All SigenStor systems installed from May 2026 must meet the CSIP-AUS communications standard, under the updated WA grid connection rules. CSIP-AUS lets Western Power monitor solar and battery systems on the Synergy network remotely. If needed, it can also adjust how these systems export power.
The SigenStor includes built-in WiFi and CSIP-AUS support, so it needs no extra hardware. For Perth homes on the Synergy network, this means the SigenStor meets all current grid connection rules straight out of the box.
On Synergy DEBS feed-in, single-phase homes with inverters up to 5 kW receive the full DEBS rate. This is 2c/kWh off-peak, and 10c/kWh during the 3 pm to 9 pm peak window. Three-phase homes, or those with larger inverters, face a 1.5 kW standing export limit under current Western Power rules. This limit does not apply if you are enrolled in an approved VPP arrangement. Your Positive Energy Solutions consultant will confirm the rules that apply to your connection before installation.
WA Battery Rebate Eligibility
DC-coupled SigenStor systems installed with the SigEnergy hybrid inverter qualify for both the Federal Cheaper Home Batteries Program (CHBP) and the WA Residential Battery Loan. This applies as long as the product stays on the WA Sustainable Systems List at the time of installation.
AC-coupled SigenStor systems, retrofitted to an existing inverter, qualify for the Federal program. They are not eligible for the WA loan, which specifically requires DC coupling.
Positive Energy Solutions handles all rebate and loan paperwork as part of the installation process. Our team confirms eligibility, prepares the documentation, and checks that the system meets the relevant technical rules before submitting any application.
Full rebate guide: WA Battery Rebates and Federal Cheaper Home Batteries Program 2026
Why Positive Energy Solutions Recommends SigenStor
Positive Energy Solutions holds SigEnergy Gold accreditation. This is the highest tier of certification SigEnergy awards to Australian retailers. It reflects our installation volume, completed technical training, and ongoing compliance with SigEnergy’s quality standards.
The SigenStor makes up about 70% of the battery systems Positive Energy Solutions installs across Perth. That volume gives our team direct, hands-on experience with how SigenStor performs in Perth conditions. This includes coastal salt air and summer temperatures often above 40°C. It also includes a grid environment that has changed a great deal since the May 2026 rule updates.
Every installation includes Positive Energy Protection, powered by Omnidian. This gives you 24/7 system monitoring that spots faults early. It also comes with a long-term performance guarantee. If something goes wrong with your system, our team knows before you do.
Talk to Positive Energy Solutions
If you are considering a SigenStor for your Perth home, our team can help. We will assess your phase type, size the right battery configuration, and give you a full installed price that includes all eligible rebates and loan paperwork.
Call us on 1300 180 999 or complete our online enquiry form. We will be in touch within one business day.
Related guides
- SigEnergy SigenStor Backup Power for Perth Homes
- How SigEnergy SigenStor Uses AI to Manage Your Home's Energy
- Sungrow vs Tesla Powerwall 3 vs SigEnergy SigenStor: Which Battery Is Right for Your Perth Home in 2026?
- Best Solar Batteries for Perth Homes in 2026
Frequently Asked Questions
What is the SigenStor and who makes it?
The SigenStor is an all-in-one solar battery system made by SigEnergy, a Chinese energy storage manufacturer with CEC-approved products in Australia. The system combines a hybrid solar inverter, battery management electronics, and stackable LFP battery modules. All of this sits on one platform. Accredited retailers sell and support it.
How much does a SigenStor cost in Perth?
Installed prices for a typical Perth home start from around $10,000. The exact price depends on inverter size, battery capacity, and site conditions. Federal Cheaper Home Batteries Program rebates apply to DC-coupled installations, and the WA Residential Battery Loan may also apply. Contact Positive Energy Solutions for a current installed price that reflects your home’s specific setup and available rebates.
Can I add more battery modules later?
Yes. You can add extra 9 kWh modules to an existing SigenStor stack at any time, up to six modules (54 kWh) per stack. Western Power rules allow up to three stacks for homes in the Synergy network area.
Is the SigenStor better for single-phase or three-phase homes?
The SigenStor is purpose-built for both. The three-phase 15 kW TP stands out. It delivers whole-home backup across all three phases at once, which very few home battery systems can match. Your Positive Energy Solutions consultant will confirm the right variant based on your meter board.
How does SigenStor compare to the Tesla Powerwall 3?
Both are strong systems in their own way. The Tesla Powerwall 3 is a fixed 13.5 kWh integrated unit. It is simple to specify, and it performs well, but it is not expandable. The SigenStor is modular. You choose inverter size and battery capacity separately, and you can add capacity over time. The SigenStor also supports three-phase whole-home backup at 15 kW, which the Powerwall 3 does not. Positive Energy Solutions can help you work out which suits your household load profile.
Is the SigenStor CSIP-AUS compliant?
Yes. Every SigenStor includes built-in WiFi and CSIP-AUS support. This meets the rules for new WA grid connections from May 2026, without any extra hardware.
What monitoring does the SigenStor provide?
The SigEnergy App (iOS and Android) gives real-time and past details of solar generation, battery state of charge, household use, and grid interaction. During a blackout, the app shows live load draw and estimated runtime under current conditions.
About the Author
Jason Wiktorowicz
Sales Manager, Positive Energy Solutions | Perth, WA
Jason has been at the centre of Western Australia’s energy transition for over a decade. As Orchestration Lead on Project Symphony — WA’s largest virtual power plant pilot — and Stream Lead on Project Encore, he worked directly with AEMO, Western Power and Energy Policy WA to shape how distributed energy resources connect and operate on the SWIS. That work included developing and rolling out CSIP-AUS, now mandatory for all new WA grid connections. He also led Emergency Solar Management (ESM), the first program of its kind in WA, VPP for Schools (VPP4S), which provided direct market benefits through Supplementary Reserve Capacity, and REBAR, the WA Residential Battery Rebate scheme.
His earlier career spanned Synergy, Infinite Energy and Curtin University’s Sustainability Policy Institute, where he co-authored peer-reviewed research on net-zero urban precincts, solar integration and peer-to-peer energy trading, published in the journal Urban Planning in 2018.
At Positive Energy Solutions, Jason leads sales with a focus on system design accuracy and long-term performance. Positive Energy Solutions installs solar and battery systems, EV chargers and heat pumps, and holds partner accreditations with Fronius, SigEnergy, iStore and SunPower. Connect with him on LinkedIn.
