Sigenergy Solar Batteries Installed in Melbourne
Sunstainable installs Sigenergy’s SigenStor home energy system across Melbourne – a single, flexible unit built to work with or without existing solar, installed and commissioned by our own in-house Coburg team.
What is a Sigenergy SigenStor battery, and how is it different from a standard home battery?
SigenStor is Sigenergy’s home energy system, combining a solar inverter, battery, and EV charging capability into a single unit rather than separate components. It’s available in a range of sizes from 5kWh to 54kWh in a single stack, works on single-phase or three-phase power, and can operate on-grid or off-grid. Sunstainable’s in-house team confirms current model availability and compatibility with your home at quote stage.
Value Proposition Grid
One unit, five functions
SigenStor combines a solar inverter, battery, EV charger and energy management system into a single stack – fewer boxes on the wall.
Scales from 5kWh to 54kWh
Size the system to your household today, with room to add capacity later rather than replacing the whole unit.
Installed by our own Coburg team, not a subcontractor
The same team that assesses your home does the fitting and grid-connection paperwork.
Built-in EV charging capability
SigenStor’s optional DC-to-DC charging can pair your battery directly with an EV — see our Residential Solar Installation
Sigenergy At A Glance
| Specification | SigenStor |
| Capacity | 5kWh to 54kWh in a single stack |
| Solar inverter | Built in. No additional solar inverter required |
| Phase | Single-phase or three-phase [confirm which configuration is being quoted/installed once stock is confirmed] |
| EV charging | Optional DC-to-DC two-way EV charging |
| Grid modes | On-grid and off-grid compatible |
| Monitoring | Real-time monitoring |
Sigenergy vs Sungrow:
Which Battery Suits Your Home?
| Sigenergy (SigenStor) | Sungrow | |
| System type | All-in-one inverter, battery, EV charger and EMS | Modular battery system (SBR / SBH LFP stack) paired with a separate wall-mounted hybrid inverter and optional standalone EV charger |
| Best suited to | Homes wanting one integrated unit with built-in EV charging | Value-conscious homes wanting a high-reliability modular battery |
| Sunstainable install | Available, subject to stock/model confirmation above | Available (SBR / SBH battery ranges paired with SH-RS or SH-T hybrid inverters |
Not sure which fits your home? That’s exactly what a free site assessment is for! While Sunstainable exclusively stocks Sigenergy, we’ll talk through how it compares against your actual usage rather than relying on a generic comparison chart.
Tesla Powerwall vs Sigenergy:
How They Compare
Both are batteries Sunstainable installs across Melbourne, and the right choice depends on your home rather than the brand alone. SigEnergy supports higher consumption 3-Phase households, and has more granular expandability. Tesla Powerwall pairs a dedicated home battery with (in the case of Powerwall 3) a built-in solar inverter – see our Tesla Powerwall 3 installation page for full specs. Sigenergy’s SigenStor goes a step further by folding in EV charging capability as well. If you’re deciding between the two, our team will walk through both against your household’s usage and any EV plans.
What's Involved in Sigenergy Installation?
- Assessment: we check your existing solar (if any), switchboard capacity, phase configuration, and household usage.
- Model and stock confirmation: confirming the current SigenStor configuration and stock available for your installation.
- Rebate check: confirming current federal battery rebate eligibility as part of your quote.
- Install and commissioning: carried out by our own in-house Coburg team, including grid connection paperwork.
Sigenergy Installers Servicing Coburg and Melbourne
Sunstainable’s in-house team, based in Coburg since 2010, installs Sigenergy systems for homes across Coburg, Coburg North, Brunswick, Pascoe Vale, Thomastown, Fawkner, Preston, Strathmore, Reservoir and Oak Park, plus larger installations in Glen Iris, Camberwell and Balwyn.
Indicative Pricing of Sigenergy Solar Batteries
All pricing is indicative and subject to a site inspection, your grid connection requirements, and final system design. It is not a quote until we’ve assessed your property.
| What affects your Sigenergy price | Detail |
| Federal battery rebate | Currently reduces the upfront cost of a typical eligible household battery by roughly $2,700 or more depending on size,, applied at quote stage |
| Stack size | SigenStor scales from 5kWh to 54kWh. Price scales with capacity |
| Phase configuration | Single-phase vs three-phase affects both hardware and install cost |
These figures are a guide to what shapes your price, not a quote for your home. Every Sigenergy installation is priced individually once we’ve confirmed current stock, your switchboard, and your rebate eligibility.
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Sunstainable has installed solar and battery systems from Coburg since 2010 — the same in-house team assesses, quotes and installs every Sigenergy job.
Frequently Asked Questions
What makes Sigenergy's SigenStor different from other home batteries?
SigenStor combines a solar inverter, battery, EV charger and energy management system into one unit, rather than requiring separate components. It scales from 5kWh to 48kWh and can run on single-phase or three-phase power.
Can Sigenergy charge an electric vehicle as well as storing solar power?
Yes! SigenStor offers optional DC-to-DC two-way EV charging as part of the same unit, alongside standard solar storage and grid backup functions.
Does SigenStor provide backup power during a grid outage?
Yes. When paired with the Sigen Energy Gateway, SigenStor offers zero-millisecond switchover during a blackout, keeping your home’s appliances running seamlessly on stored solar energy without interruption.
Can I expand my battery storage capacity down the track?
Yes. SigenStor’s modular, stackable design allows you to easily add extra battery modules to your existing system at any time without replacing your inverter or core setup.
Ready to Talk Sigenergy?
Book a free site assessment and our in-house Coburg team will confirm current model availability, compatibility with your home, and an exact price. No generic package, no guesswork.
All pricing referenced on this page is indicative only and subject to a site inspection, your grid connection requirements, and final system design. Your exact price is confirmed after we’ve assessed your property.