Sigenergy SigenStor Battery Installation in Caloundra, Nambour and the Sunshine Coast
The Sigenergy SigenStor packs a hybrid inverter, battery power conversion and stackable LFP modules into one cable free tower, with an optional DC module that fast charges an EV straight from your solar and battery. Paired with a 13.3kW array of 475W Trina Vertex S+ panels and Sigenergy's AI driven app, it is the most future proof system we install, designed, installed and commissioned by the licensed contractor. We install from our Nambour workshop across the Sunshine Coast and Brisbane.
Free estimate within 1 business day of receiving your photos and power bill. We can't estimate without photos, and we don't visit to estimate. Want the price locked in? Book a $299 design visit, credited back if you go ahead within 30 days of the visit.

Designed, installed and commissioned by the licensed contractor.
What's included
Everything in the Sigenergy package.
- 13.3kW solar array: 28 × Trina Vertex S+ 475W N type i-TOPCon dual glass panels
- SigenStor 5 in 1 tower: hybrid inverter + stackable LFP battery modules, pin to pin connected with no external cabling
- Battery sized to your usage: 8kWh modules (7.8kWh usable), expandable up to 48kWh per stack
- Single phase and three phase options
- mySigen app with AI driven optimisation and blackout backup support
- Optional: Sigenergy DC EV charging module, charging from solar and battery
- 10 year manufacturer warranty on the battery modules
- 25 year product warranty, 30 year performance warranty on the panels
- Full professional installation, testing & commissioning by the licensed contractor
- Energex / DNSP connection application lodged for you
- STC & battery rebate paperwork handled end to end
- Lifetime workmanship warranty (conditions apply)
Conditions & what may be extra
- Final system size, battery capacity and inverter model are confirmed from clear photos of your site, or at a design visit if one is needed
- Quoted after eligible STC and battery rebates; eligibility and the final rebate value depend on your system, zone and situation
- Switchboard or RCBO upgrades are extra if required
- Nonstandard roofs, tilt frames, difficult access or additional cabling are extra
- DNSP / export limitation works are extra if required (13.3kW arrays are subject to network approval and may be export limited)
- The DC EV charging module is an optional extra, quoted per site
- Backup configuration depends on switchboard condition, circuits and load assessment

QLD Electrical Contractor Lic# 92489SAA Accreditation #S60932145.0 Google ratingLifetime workmanship warranty (conditions apply)Is this the right size for your home?
Put your own daily usage in and see how much of it a system like this covers, hour by hour. In kilowatt hours, not sales talk.
Read what we think of it after installing it
Sigenergy SigenStor review, from an installer
How the stacking really works, the integrated DC EV charging nothing else in this class offers, why whole home backup needs the Gateway, and the weight nobody mentions.
Read the review →Sizing guideWhat size home battery you actually need
How to size the Sigenergy battery around your real evening use, and why the federal discount stops rewarding size past a point.
Read the guide →Sigenergy Package Questions
Straight answers on the hardware, the battery sizing, backup and the rebates, from the licensed contractor doing the work.
What makes the SigenStor different from a normal inverter and battery?
It is five products in one stack: hybrid inverter, battery power conversion, the battery modules themselves, an energy management system and, optionally, a DC EV fast charging module. The modules click together pin to pin with no external cables, so the finished install is a single clean tower.
Can it really charge my EV from solar?
Yes, with the optional DC charging module the SigenStor can fast charge an EV directly from your solar and battery on DC, which is more efficient than going through a separate AC charger. If you have or are planning an EV, this is the tidiest way to bring it into your home energy system.
How big can the battery go?
SigenStor stacks 8kWh modules (7.8kWh usable each) up to 48kWh in a single tower, and multiple towers can run in parallel. We size it to your actual usage, from your bill and clear photos or at a design visit if one is needed.
Does it work for three phase homes?
Yes, Sigenergy has both single phase and three phase versions, and the three phase units are a strong pick for larger homes, ducted air conditioning and workshops. We confirm the right configuration for your supply as part of the quote.
Is it rebate eligible?
Yes. SigenStor is CEC approved and our installs are signed off by our SAA accredited installer, so eligible solar STCs and the federal battery rebate are applied up front in your written quote.
What warranties come with it?
Sigenergy covers the battery modules with a 10 year warranty, the Trina Vertex S+ panels carry a 25 year product and 30 year performance warranty, and our installation work is covered by our lifetime workmanship warranty (conditions apply, see our Terms). If you sell the home, that workmanship warranty can transfer once to the new owner for 10 years from completion, provided they let us know in writing within 60 days of settlement.
Compare our packages. Not sure which suits your home? We'll recommend the right fit in your free estimate, or on site at a $299 design visit if one is needed.
Get a Free Estimate for Your Sigenergy System
Tell us about your home, your power use and what you want from backup. We'll design the right Sigenergy system for your roof and switchboard, apply every rebate you're eligible for, and give you a written estimate, confirmed before anything is ordered.
- →SAA accredited, licensed & insured, direct from the contractor
- →STC & battery rebate paperwork handled for you
- →Sunshine Coast & greater QLD, hundreds of installs
Send your enquiry
Takes 30 seconds. We reply within 2 hours during business hours. If it is urgent, call 0494 826 740.
Where we do this
Sigenergy solar and battery packages are installed across the Sunshine Coast and greater QLD, from our two bases in Caloundra and Nambour.